Received: (at 60534) by debbugs.gnu.org; 28 Jan 2026 12:15:47 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Jan 28 07:15:47 2026 Received: from localhost ([127.0.0.1]:47981 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1vl4SY-0001qW-PD for submit <at> debbugs.gnu.org; Wed, 28 Jan 2026 07:15:47 -0500 Received: from mout.gmx.net ([212.227.17.22]:43049) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <michael.albinus@HIDDEN>) id 1vl4ST-0001q5-Qv for 60534 <at> debbugs.gnu.org; Wed, 28 Jan 2026 07:15:44 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.de; s=s31663417; t=1769602535; x=1770207335; i=michael.albinus@HIDDEN; bh=rJ35ido/dElQFzYwkjpIQH1cO2w3gfR2FbB3+jME4sM=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date: Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:cc: 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debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) James Thomas <jimjoe@HIDDEN> writes: >> Hi Michael, Hi James, >> I think we got off on the wrong foot... :-) That patch was only meant >> to >> check the idea. Here's a better (but still proto-) version, also for >> anyone interested to test if this technique is any good (so that I >> might >> be forewarned if proceeding with detailing is not worth it): OK. >> But I think an explanation of how it works AISI would suffice to >> easily >> reject it and stop my bothering: >> >> Tramp handlers won't recursively call themselves, but a filter borne >> of >> the async process's accept-...-output might. In which case it leads to >> Forbidden if the _shell_ is already running something else. In this >> patch, a shell is never left open: it's always reused to reattach >> (renew) the async process, and every handler call is a new connection >> which detaches the current (first) running async process. Also, the >> custom sentinel, which runs on general waiting, is what does the >> reattachment. ControlMaster causes the newly spawned ssh process to >> wait >> until the earlier one has exited - after detaching. >> >> IOW, ssh ControlMaster handles concurrency locally and dtach remotely. I still have hard time to understand how dtach can solve the problem. In my understanding, it isn't an asynchronous process itself which causes the problem. It is rather what is done in the process-fileter or process-sentinel. If there is a call of a primitive file operation, like file-attributes or directory-files, this file operation will be handled in the main Tramp connection process (like *tramp/ssh hostname*), and not in the async process. Same for primitive file operation in Emacs main. These asynchronous, parallel operations in the same Tramp main connection do the hassle, because they interfer each other. Same for timers, or special event handlers. >> (I will surely look into the tests) As illustration, I have added a new test to tramp-tests.el (pushed to the repositories). You can call it like --8<---------------cut here---------------start------------->8--- # env REMOTE_TEMPORARY_FILE_DIRECTORY=3D'/dtach::/tmp' make -C test tramp-t= ests SELECTOR=3Dtramp-test45-force-remote-file-error make: Entering directory '/home/albinus/src/tramp/test' /usr/local/bin/emacs -Q -batch -L /home/albinus/src/tramp/test/../lisp -L /= home/albinus/src/tramp/test -l tramp -l tramp-tests \ --eval '(ert-run-tests-batch-and-exit (quote tramp-test45-force-remote-file= -error))'=20 Running 1 tests (2026-01-28 13:09:46+0100, selector =E2=80=98tramp-test45-f= orce-remote-file-error=E2=80=99) timer /dtach::/tmp filter /dtach:gandalf: error in process filter: Forbidden reentrant call of Tramp make: [Makefile:49: tramp-tests] Error 255 (ignored) make: Leaving directory '/home/albinus/src/tramp/test' --8<---------------cut here---------------end--------------->8--- It uses a process-filter for tests, because the problem happens more often = here than in process-sentinel. If we could run this test w/o an error, we would have it. > Sorry, the eglot part doesn't work yet. Will send in an updated patch... > > (Let that not come in the way of airing opinions) Sure, let's discuss the approach. Although I have hard times to understand, w/o running a test with full Tramp traces. (I'm also a little bit concerned that you need to patch also other packages, like jsonrpc. They should run w/o Tramp specific functions.) Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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From: James Thomas <jimjoe@HIDDEN>
To: Michael Albinus <michael.albinus@HIDDEN>
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
In-Reply-To: <s48ecnaib3m.fsf@HIDDEN>
References: <68310D70-1BAA-48F0-BB99-39E02A020BD1@HIDDEN>
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Date: Wed, 28 Jan 2026 16:54:18 +0530
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James Thomas <> writes:
> Michael Albinus <> writes:
>
>> James Thomas <> writes:
>>
>> Hi James,
>>
>>>>>>>> This is just a POC (as the littered FIXMEs testify) only to
>>>>>>>> check
>>>>>>>> feasibility - any flaw? And more of a fix for bug#61350 than
>>>>>>>> this,
>>>>>>>> so
>>>>>>>> bear with me for the test:
>>>>>>>>
>>>>>>>> - M-x cd /dtach:<server having dtach>: RET
>>>>>>>> - M-: (start-file-process "test" "test" "./test.sh") ([1] or
>>>>>>>> maybe
>>>>>>>> another long-running process)
>>>>>>>> - C-x C-j
>>>>>>>>
>>>>>>>> With /ssh: it would block, but this works, with no visible
>>>>>>>> defects
>>>>>>>> in
>>>>>>>> the async process, AFAICT.
>>>>>>>>
>>>>>>>> So I guess my question is: Does something like this - fully
>>>>>>>> fleshed
>>>>>>>> out - have a chance?
>>
>> Thanks for this. I've played a little bit with.
>>
>> First, it doesn't pass the Tramp tests. Try
>>
>> # env REMOTE_TEMPORARY_FILE_DIRECTORY=/dtach::/tmp make -C test
>> tramp-tests.log
>>
>> Several tests have failed. Pls fix this so that I have a chance to
>> check
>> the code (and the timing) better.
>>
>> Some general remarks:
>>
>> - You have added a new Tramp method "dtach", bound to the Tramp
>> method
>> "ssh". I believe this isn't sufficient, all Tramp methods which
>> are
>> based on "ssh" mechanism shall be covered. This includes sll
>> methods
>> with offer connection sharing, like "scp", "scpx", "rsync",
>> "sshx",
>> "plink", "plinkx", "pscp", "psftp". Even better would be to
>> support
>> *all* methods of the tramp-sh backend, but there might be
>> technical
>> restrictions as you said.
>>
>> Would it be possible to refrain from using a new method, and to
>> control using dtach by additional method parameters and/or global
>> settings?
>>
>> - Your approach modifies process sentinels (and it proposes to do so
>> also
>> for process filters). What about other reasons for the forbidden
>> Tramp
>> reentrant call? Timers, special events like D-Bus or file
>> notifications, you name it.
>>
>> Comments on the code:
>>
>>> +;; FIXME: Instead, couldn't it simply be local to the shell
>>> process
>>> buffer (but is it guaranteed t.e. if starting with direct-async)?
>>> Or
>>> turn into registry for unique ControlMaster sockets. Has for its
>>> value the running async proc.
>>> +(defvar tramp-to-dtach nil)
>>> +(defvar tramp-just-dtached nil)
>>
>> Try to use process properties (or ephemeral connection properties)
>> via
>> tramp{-set|-get}-connection-property.
>>
>>> + ;; Copy of ssh. Separate so that one may run processes normally
>>> as
>>> well, alongside.
>>> + (add-to-list 'tramp-methods
>>> + `("dtach"
>>> + (tramp-login-program "ssh")
>>> + (tramp-login-args (("-l" "%u") ("-p" "%p")
>>> + ;; FIXME: Work into the auto-detection instead.
>>> + ("-o" "ControlPath=dtach-ControlPath-%%r@%%h:%%p")
>>> + ("-o" "ControlMaster=auto")
>>> + ("-o" "ControlPersist=yes")
>>
>> Why your own values? Wouldn't ("%c") be sufficient? Yes, Control*
>> settings could be disabled, but you could ignore
>> tramp-use-connection-share in tramp-ssh-or-plink-options when you
>> detect
>> a dtach-based connection.
>>
>>> - (when sentinel
>>> - (set-process-sentinel p sentinel))
>>> + (when (or sentinel dtachp)
>>> + (set-process-sentinel
>>> + p (if dtachp
>>> + ;; So there ought to be no waits (sit-for
>>> + ;; etc.) that might trigger this, in
>>> + ;; tramp itself.
>>> + (lambda (proc event)
>>> + ;; TODO: Detect termination using tramp-just-dtached.
>>> + (if (and (eq proc tramp-to-dtach)
>>> + (string= event "finished\n"))
>>> + ;; FIXME: Check if too soon.
>>> + (with-current-buffer (process-buffer proc)
>>> + ;; Renew.
>>> + (tramp-sh-handle-make-process
>>> + ;; Applications may use the same name eventhough the object
>>> changes.
>>> + :name (process-name proc)
>>> + :buffer (process-buffer proc)
>>> + :command
>>> + '("sh" "-c" "cat /tmp/buf; dtach -a /tmp/fozzle; > /tmp/buf")
>>> + :filter (process-filter proc))
>>> + (setq tramp-just-dtached nil))
>>> + (funcall (or sentinel #'internal-default-process-sentinel)
>>> + proc event)))
>>> + sentinel)))
>>
>> Does it mean you ignore sentinel in the dtach case?
>>
>>> + (catch 'uname-changed`
>>
>> Superfluous grave accent.
>>
>> Best regards, Michael.
>
> Hi Michael,
>
> I think we got off on the wrong foot... :-) That patch was only meant
> to
> check the idea. Here's a better (but still proto-) version, also for
> anyone interested to test if this technique is any good (so that I
> might
> be forewarned if proceeding with detailing is not worth it):
>
>
>
> (The 'interface' part is just a proposal) Btw it will also need:
>
> (advice-add 'jsonrpc--process :filter-return
> #'possibly-dtached-process)
> (setq tramp-use-connection-share 'dtach)
>
> C-x C-f /ssh:<server with dtach & lsp>:~/path/to/file.c RET
> M-x eglot RET
>
> But I think an explanation of how it works AISI would suffice to
> easily
> reject it and stop my bothering:
>
> Tramp handlers won't recursively call themselves, but a filter borne
> of
> the async process's accept-...-output might. In which case it leads to
> Forbidden if the _shell_ is already running something else. In this
> patch, a shell is never left open: it's always reused to reattach
> (renew) the async process, and every handler call is a new connection
> which detaches the current (first) running async process. Also, the
> custom sentinel, which runs on general waiting, is what does the
> reattachment. ControlMaster causes the newly spawned ssh process to
> wait
> until the earlier one has exited - after detaching.
>
> IOW, ssh ControlMaster handles concurrency locally and dtach remotely.
>
> (I will surely look into the tests)
>
>> Superfluous grave accent.
>
> I imagine you using this anyway... ;-)
>
> WDYT?
Sorry, the eglot part doesn't work yet. Will send in an updated patch...
(Let that not come in the way of airing opinions)
--
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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From: James Thomas <jimjoe@HIDDEN>
To: Michael Albinus <michael.albinus@HIDDEN>
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
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Date: Wed, 28 Jan 2026 10:32:05 +0530
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--=-=-=
Content-Type: text/plain
Michael Albinus <> writes:
> James Thomas <> writes:
>
> Hi James,
>
>>>>>>> This is just a POC (as the littered FIXMEs testify) only to
>>>>>>> check
>>>>>>> feasibility - any flaw? And more of a fix for bug#61350 than
>>>>>>> this,
>>>>>>> so
>>>>>>> bear with me for the test:
>>>>>>>
>>>>>>> - M-x cd /dtach:<server having dtach>: RET
>>>>>>> - M-: (start-file-process "test" "test" "./test.sh") ([1] or
>>>>>>> maybe
>>>>>>> another long-running process)
>>>>>>> - C-x C-j
>>>>>>>
>>>>>>> With /ssh: it would block, but this works, with no visible
>>>>>>> defects
>>>>>>> in
>>>>>>> the async process, AFAICT.
>>>>>>>
>>>>>>> So I guess my question is: Does something like this - fully
>>>>>>> fleshed
>>>>>>> out - have a chance?
>
> Thanks for this. I've played a little bit with.
>
> First, it doesn't pass the Tramp tests. Try
>
> # env REMOTE_TEMPORARY_FILE_DIRECTORY=/dtach::/tmp make -C test tramp-tests.log
>
> Several tests have failed. Pls fix this so that I have a chance to
> check
> the code (and the timing) better.
>
> Some general remarks:
>
> - You have added a new Tramp method "dtach", bound to the Tramp method
> "ssh". I believe this isn't sufficient, all Tramp methods which are
> based on "ssh" mechanism shall be covered. This includes sll methods
> with offer connection sharing, like "scp", "scpx", "rsync", "sshx",
> "plink", "plinkx", "pscp", "psftp". Even better would be to support
> *all* methods of the tramp-sh backend, but there might be technical
> restrictions as you said.
>
> Would it be possible to refrain from using a new method, and to
> control using dtach by additional method parameters and/or global
> settings?
>
> - Your approach modifies process sentinels (and it proposes to do so
> also
> for process filters). What about other reasons for the forbidden
> Tramp
> reentrant call? Timers, special events like D-Bus or file
> notifications, you name it.
>
> Comments on the code:
>
>> +;; FIXME: Instead, couldn't it simply be local to the shell process
>> buffer (but is it guaranteed t.e. if starting with direct-async)? Or
>> turn into registry for unique ControlMaster sockets. Has for its
>> value the running async proc.
>> +(defvar tramp-to-dtach nil)
>> +(defvar tramp-just-dtached nil)
>
> Try to use process properties (or ephemeral connection properties) via
> tramp{-set|-get}-connection-property.
>
>> + ;; Copy of ssh. Separate so that one may run processes normally as
>> well, alongside.
>> + (add-to-list 'tramp-methods
>> + `("dtach"
>> + (tramp-login-program "ssh")
>> + (tramp-login-args (("-l" "%u") ("-p" "%p")
>> + ;; FIXME: Work into the auto-detection instead.
>> + ("-o" "ControlPath=dtach-ControlPath-%%r@%%h:%%p")
>> + ("-o" "ControlMaster=auto")
>> + ("-o" "ControlPersist=yes")
>
> Why your own values? Wouldn't ("%c") be sufficient? Yes, Control*
> settings could be disabled, but you could ignore
> tramp-use-connection-share in tramp-ssh-or-plink-options when you
> detect
> a dtach-based connection.
>
>> - (when sentinel
>> - (set-process-sentinel p sentinel))
>> + (when (or sentinel dtachp)
>> + (set-process-sentinel
>> + p (if dtachp
>> + ;; So there ought to be no waits (sit-for
>> + ;; etc.) that might trigger this, in
>> + ;; tramp itself.
>> + (lambda (proc event)
>> + ;; TODO: Detect termination using tramp-just-dtached.
>> + (if (and (eq proc tramp-to-dtach)
>> + (string= event "finished\n"))
>> + ;; FIXME: Check if too soon.
>> + (with-current-buffer (process-buffer proc)
>> + ;; Renew.
>> + (tramp-sh-handle-make-process
>> + ;; Applications may use the same name eventhough the object
>> changes.
>> + :name (process-name proc)
>> + :buffer (process-buffer proc)
>> + :command
>> + '("sh" "-c" "cat /tmp/buf; dtach -a /tmp/fozzle; > /tmp/buf")
>> + :filter (process-filter proc))
>> + (setq tramp-just-dtached nil))
>> + (funcall (or sentinel #'internal-default-process-sentinel)
>> + proc event)))
>> + sentinel)))
>
> Does it mean you ignore sentinel in the dtach case?
>
>> + (catch 'uname-changed`
>
> Superfluous grave accent.
>
> Best regards, Michael.
Hi Michael,
I think we got off on the wrong foot... :-) That patch was only meant to
check the idea. Here's a better (but still proto-) version, also for
anyone interested to test if this technique is any good (so that I might
be forewarned if proceeding with detailing is not worth it):
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment; filename=better.patch
Content-Transfer-Encoding: quoted-printable
diff --git a/lisp/jsonrpc.el b/lisp/jsonrpc.el
index 6c969120926..001169f2c92 100644
=2D-- a/lisp/jsonrpc.el
+++ b/lisp/jsonrpc.el
@@ -547,7 +547,7 @@ initialize-instance
(setf (jsonrpc--process conn) proc)
(set-process-buffer proc (get-buffer-create (format " *%s output*" na=
me)))
(set-process-filter proc #'jsonrpc--process-filter)
- (set-process-sentinel proc #'jsonrpc--process-sentinel)
+ (set-process-sentinel-maybe-dtached proc #'jsonrpc--process-sentinel)
(with-current-buffer (process-buffer proc)
(buffer-disable-undo)
(set-marker (process-mark proc) (point-min))
diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index 457c9cf6b0e..ff69e2b4a66 100644
=2D-- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -154,6 +154,10 @@ tramp-scp-force-scp-protocol
=20
The string is used in `tramp-methods'.")
=20
+;; FIXME: Instead, couldn't it simply be local to the shell process buffe=
r (but is it guaranteed t.e. if starting with direct-async)? Or turn into =
registry for unique ControlMaster sockets. Has for its value the running a=
sync proc.
+(defvar tramp-to-dtach nil)
+(defvar tramp-just-dtached nil)
+
(defcustom tramp-use-scp-direct-remote-copying nil
"Whether to use direct copying between two remote hosts."
:group 'tramp
@@ -3075,8 +3079,17 @@ tramp-sh-handle-make-process
(if heredoc
(format "%s\n(\n%s\n) </dev/tty\n%s"
program (car args) tramp-end-of-heredoc)
- (mapconcat #'tramp-shell-quote-argument
- (cons program args) " ")))))
+ (let ((cmd (mapconcat #'tramp-shell-quote-argument
+ (cons program args) " ")))
+ ;; FIXME: Only one process accounted for.
+ (when (and (eq tramp-use-connection-share 'dt=
ach) (not tramp-just-dtached))
+ (setq cmd
+ (format
+ ;; FIXME: Generalize sh etc.
+ "dtach -c /tmp/fozzle sh -c \"%s > t=
ee /tmp/buf\"; > /tmp/buf"
+ ;; FIXME: Quote quotes.
+ cmd)))
+ cmd)))))
(tramp-process-connection-type
(or (null program) tramp-process-connection-type))
(bmp (and (buffer-live-p buffer) (buffer-modified-p buffer)))
@@ -3183,8 +3196,16 @@ tramp-sh-handle-make-process
v 'file-error
"pty association is not supported for `%s'" name))))
;; Set sentinel and filter.
- (when sentinel
- (set-process-sentinel p sentinel))
+ (when (or sentinel (eq tramp-use-connection-share 'dtach))
+ (set-process-sentinel
+ p (if (eq tramp-use-connection-share 'dtach)
+ (progn (process-put p 'dtach-sentinel
+ (or sentinel #'interna=
l-default-process-sentinel))
+ ;; So there ought to be no waits
+ ;; (sit-for etc.) that might
+ ;; trigger this, in tramp itself.
+ #'tramp-dtached-process-sentinel)
+ sentinel)))
(when filter
(set-process-filter p filter))
(process-put p 'remote-command orig-command)
@@ -4971,6 +4992,8 @@ tramp-ssh-or-plink-options
(when (tramp-plink-option-exists-p vec "-legacy-stdio-prompts")
" -legacy-stdio-prompts")))
=20
+ ((eq tramp-use-connection-share 'dtach)
+ "-o ControlPath=3Ddtach-ControlPath-%%r@%%h:%%p -o ControlMaster=3Dau=
to -o ControlPersist=3Dyes")
;; There is already a value to be used.
((and (eq tramp-use-connection-share t)
(stringp tramp-ssh-controlmaster-options))
@@ -5210,6 +5233,11 @@ tramp-maybe-open-connection
;; New connection must be opened.
(condition-case err
(unless (process-live-p p)
+ (when
+ (and (eq tramp-use-connection-share 'dtach) tramp-to-dtac=
h
+ (process-live-p tramp-to-dtach))
+ (process-send-string tramp-to-dtach "=1C")
+ (setq tramp-just-dtached t))
(catch 'uname-changed
;; Start new process.
(when (and p (processp p))
@@ -5355,6 +5383,7 @@ tramp-maybe-open-connection
=20
;; Send the command.
(with-tramp-progress-reporter
+ ;; (if (and (eq tramp-use-connection-share 'dtach=
) tramp-just-dtached) 4 3)
vec 3
(format "Opening connection%s for %s%s using %s"
(if (tramp-string-empty-or-nil-p process-name)
@@ -6140,6 +6169,53 @@ tramp-get-inline-coding
(t
(format "%s <%%s" coding)))))))
=20
+;;; 'dtach' method interface.
+
+(defun tramp-dtached-process-sentinel (proc event)
+ (if (and (eq proc tramp-to-dtach)
+ (string=3D event "finished\n")
+ ;; Reset, just in case it's termination.
+ (always (setq tramp-to-dtach nil))
+ tramp-just-dtached)
+ (let ((default-directory
+ (tramp-make-tramp-file-name
+ (process-get proc 'tramp-vector))))
+ (setq
+ tramp-to-dtach=20
+ ;; Renew.
+ (tramp-sh-handle-make-process
+ ;; Applications may use the same name eventhough the object
+ ;; changes.
+ :name (process-name proc)
+ :buffer (process-buffer proc)
+ :command
+ '("sh" "-c" "cat /tmp/buf; dtach -a /tmp/fozzle; > /tmp/buf")
+ :filter (process-filter proc)
+ :coding (process-coding-system proc)
+ :connection-type (process-type proc)
+ :noquery (process-query-on-exit-flag proc)))
+ (set-process-plist tramp-to-dtach (process-plist proc))
+ (setq tramp-just-dtached nil))
+ (funcall (process-get proc 'dtach-sentinel)
+ proc event)))
+
+(defun possibly-dtached-process (process)
+ "Returns the renewed PROCESS object (if any) in favour of it, if it's '=
dtach'-ed."
+ (get-process (process-name process)))
+
+(defun process-sentinel-maybe-dtached (process)
+ "Like 'process-sentinel' but also considers the custom sentinel of tram=
p's 'dtach' method."
+ (let ((sentinel (process-get process 'dtach-sentinel)))
+ (if sentinel
+ (and (not (eq sentinel #'internal-default-process-sentinel)) sent=
inel)
+ (process-sentinel process))))
+
+(defun set-process-sentinel-maybe-dtached (process sentinel)
+ "Like 'set-process-sentinel' but also considers the custom sentinel of =
tramp's 'dtach' method."
+ (if (process-get process 'dtach-sentinel)
+ (process-put p 'dtach-sentinel sentinel)
+ (set-process-sentinel process sentinel)))
+
(add-hook 'tramp-unload-hook
(lambda ()
(unload-feature 'tramp-sh 'force)))
--=-=-=
Content-Type: text/plain
(The 'interface' part is just a proposal) Btw it will also need:
(advice-add 'jsonrpc--process :filter-return #'possibly-dtached-process)
(setq tramp-use-connection-share 'dtach)
C-x C-f /ssh:<server with dtach & lsp>:~/path/to/file.c RET
M-x eglot RET
But I think an explanation of how it works AISI would suffice to easily
reject it and stop my bothering:
Tramp handlers won't recursively call themselves, but a filter borne of
the async process's accept-...-output might. In which case it leads to
Forbidden if the _shell_ is already running something else. In this
patch, a shell is never left open: it's always reused to reattach
(renew) the async process, and every handler call is a new connection
which detaches the current (first) running async process. Also, the
custom sentinel, which runs on general waiting, is what does the
reattachment. ControlMaster causes the newly spawned ssh process to wait
until the earlier one has exited - after detaching.
IOW, ssh ControlMaster handles concurrency locally and dtach remotely.
(I will surely look into the tests)
> Superfluous grave accent.
I imagine you using this anyway... ;-)
WDYT?
--
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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From: Michael Albinus <michael.albinus@HIDDEN>
To: James Thomas <jimjoe@HIDDEN>
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
In-Reply-To: <s48ldht7z1n.fsf@HIDDEN>
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James Thomas <jimjoe@HIDDEN> writes:
Hi James,
>>>>>> This is just a POC (as the littered FIXMEs testify) only to check
>>>>>> feasibility - any flaw? And more of a fix for bug#61350 than
>>>>>> this,
>>>>>> so
>>>>>> bear with me for the test:
>>>>>>
>>>>>> - M-x cd /dtach:<server having dtach>: RET
>>>>>> - M-: (start-file-process "test" "test" "./test.sh") ([1] or
>>>>>> maybe
>>>>>> another long-running process)
>>>>>> - C-x C-j
>>>>>>
>>>>>> With /ssh: it would block, but this works, with no visible
>>>>>> defects
>>>>>> in
>>>>>> the async process, AFAICT.
>>>>>>
>>>>>> So I guess my question is: Does something like this - fully
>>>>>> fleshed
>>>>>> out - have a chance?
Thanks for this. I've played a little bit with.
First, it doesn't pass the Tramp tests. Try
--8<---------------cut here---------------start------------->8---
# env REMOTE_TEMPORARY_FILE_DIRECTORY=/dtach::/tmp make -C test tramp-tests.log
--8<---------------cut here---------------end--------------->8---
Several tests have failed. Pls fix this so that I have a chance to check
the code (and the timing) better.
Some general remarks:
- You have added a new Tramp method "dtach", bound to the Tramp method
"ssh". I believe this isn't sufficient, all Tramp methods which are
based on "ssh" mechanism shall be covered. This includes sll methods
with offer connection sharing, like "scp", "scpx", "rsync", "sshx",
"plink", "plinkx", "pscp", "psftp". Even better would be to support
*all* methods of the tramp-sh backend, but there might be technical
restrictions as you said.
Would it be possible to refrain from using a new method, and to
control using dtach by additional method parameters and/or global
settings?
- Your approach modifies process sentinels (and it proposes to do so also
for process filters). What about other reasons for the forbidden Tramp
reentrant call? Timers, special events like D-Bus or file
notifications, you name it.
Comments on the code:
> +;; FIXME: Instead, couldn't it simply be local to the shell process buffer (but is it guaranteed t.e. if starting with direct-async)? Or turn into registry for unique ControlMaster sockets. Has for its value the running async proc.
> +(defvar tramp-to-dtach nil)
> +(defvar tramp-just-dtached nil)
Try to use process properties (or ephemeral connection properties) via
tramp{-set|-get}-connection-property.
> + ;; Copy of ssh. Separate so that one may run processes normally as well, alongside.
> + (add-to-list 'tramp-methods
> + `("dtach"
> + (tramp-login-program "ssh")
> + (tramp-login-args (("-l" "%u") ("-p" "%p")
> + ;; FIXME: Work into the auto-detection instead.
> + ("-o" "ControlPath=dtach-ControlPath-%%r@%%h:%%p")
> + ("-o" "ControlMaster=auto")
> + ("-o" "ControlPersist=yes")
Why your own values? Wouldn't ("%c") be sufficient? Yes, Control*
settings could be disabled, but you could ignore
tramp-use-connection-share in tramp-ssh-or-plink-options when you detect
a dtach-based connection.
> - (when sentinel
> - (set-process-sentinel p sentinel))
> + (when (or sentinel dtachp)
> + (set-process-sentinel
> + p (if dtachp
> + ;; So there ought to be no waits (sit-for
> + ;; etc.) that might trigger this, in
> + ;; tramp itself.
> + (lambda (proc event)
> + ;; TODO: Detect termination using tramp-just-dtached.
> + (if (and (eq proc tramp-to-dtach)
> + (string= event "finished\n"))
> + ;; FIXME: Check if too soon.
> + (with-current-buffer (process-buffer proc)
> + ;; Renew.
> + (tramp-sh-handle-make-process
> + ;; Applications may use the same name eventhough the object changes.
> + :name (process-name proc)
> + :buffer (process-buffer proc)
> + :command
> + '("sh" "-c" "cat /tmp/buf; dtach -a /tmp/fozzle; > /tmp/buf")
> + :filter (process-filter proc))
> + (setq tramp-just-dtached nil))
> + (funcall (or sentinel #'internal-default-process-sentinel)
> + proc event)))
> + sentinel)))
Does it mean you ignore sentinel in the dtach case?
> + (catch 'uname-changed`
Superfluous grave accent.
Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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From: James Thomas <jimjoe@HIDDEN>
To: Michael Albinus <michael.albinus@HIDDEN>
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
In-Reply-To: <s48pl7597ct.fsf@HIDDEN>
References: <68310D70-1BAA-48F0-BB99-39E02A020BD1@HIDDEN>
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Date: Tue, 20 Jan 2026 08:47:40 +0530
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--=-=-=
Content-Type: text/plain
James Thomas <> writes:
> James Thomas <> writes:
>
>> Michael Albinus <> writes:
>>
>>> James Thomas <> writes:
>>>
>>> Hi James,
>>>
>>>>> This is just a POC (as the littered FIXMEs testify) only to check
>>>>> feasibility - any flaw? And more of a fix for bug#61350 than
>>>>> this,
>>>>> so
>>>>> bear with me for the test:
>>>>>
>>>>> - M-x cd /dtach:<server having dtach>: RET
>>>>> - M-: (start-file-process "test" "test" "./test.sh") ([1] or
>>>>> maybe
>>>>> another long-running process)
>>>>> - C-x C-j
>>>>>
>>>>> With /ssh: it would block, but this works, with no visible
>>>>> defects
>>>>> in
>>>>> the async process, AFAICT.
>>>>>
>>>>> So I guess my question is: Does something like this - fully
>>>>> fleshed
>>>>> out - have a chance?
>>>>
>>>> This has a few (seemingly not critical) mistakes. Let me send an
>>>> updated
>>>> one.
>>>
>>> No problem, take your time. I didn't start yet to analyze in
>>> detail.
>>>
>>> Perhaps this: while scanning the patch shortly, my first impulse
>>> was:
>>> why an own method? This restricts the approach to just the ssh
>>> method. Wouldn't it be better, to add it (controlled by method
>>> parameters, for example) to any method of tramp-sh.el?
>>
>> That was my intention as well, but I didn't want to complicate
>> things
>> for a POC.
>>
>>> My experience from zillions of Tramp regression tests is, that the
>>> problems happens more frequently for the sudo method but ssh.
>>
>> This won't work there because it very much _uses_ the ControlPersist
>> and
>> ControlMaster to achieve the async.
>>
>> But what I really wanted to know was what you think of the
>> approach. The
>> main problem with what I gave already is that it accidentally
>> layered
>> two dtach calls in the 'renewal'. But the test should still work.
>>
>> (That and the fact that I'm not sure of the extra efficiency eked
>> out
>> of
>> using eq for the common string comparison)
>>
>> But I think I'll send in a proper patch now anyway...
>
> (I might be called away, so) here's an updated POC:
>
>
>
> Test similarly.
Some cobwebs cleared:
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment; filename=tramp-test3.patch
Content-Transfer-Encoding: quoted-printable
diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index 457c9cf6b0e..b1cdd1e89b6 100644
=2D-- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -154,6 +154,10 @@ tramp-scp-force-scp-protocol
=20
The string is used in `tramp-methods'.")
=20
+;; FIXME: Instead, couldn't it simply be local to the shell process buffe=
r (but is it guaranteed t.e. if starting with direct-async)? Or turn into =
registry for unique ControlMaster sockets. Has for its value the running a=
sync proc.
+(defvar tramp-to-dtach nil)
+(defvar tramp-just-dtached nil)
+
(defcustom tramp-use-scp-direct-remote-copying nil
"Whether to use direct copying between two remote hosts."
:group 'tramp
@@ -284,6 +288,24 @@ tramp-use-scp-direct-remote-copying
(tramp-remote-shell ,tramp-default-remote-shell)
(tramp-remote-shell-login ("-l"))
(tramp-remote-shell-args ("-c"))))
+ ;; Copy of ssh. Separate so that one may run processes normally as well,=
alongside.
+ (add-to-list 'tramp-methods
+ `("dtach"
+ (tramp-login-program "ssh")
+ (tramp-login-args (("-l" "%u") ("-p" "%p")
+ ;; FIXME: Work into the auto=
-detection instead.
+ ("-o" "ControlPath=3Ddtach-C=
ontrolPath-%%r@%%h:%%p")
+ ("-o" "ControlMaster=3Dauto"=
)
+ ("-o" "ControlPersist=3Dyes"=
)
+ ("-e" "none")
+ ("-o" ,(format "SetEnv=3D\"TERM=3D%s\""
+ tramp-terminal-type))
+ ("%h")))
+ (tramp-async-args (("-q")))
+ (tramp-direct-async ("-t" "-t"))
+ (tramp-remote-shell ,tramp-default-remote-shell)
+ (tramp-remote-shell-login ("-l"))
+ (tramp-remote-shell-args ("-c"))))
(add-to-list 'tramp-methods
`("telnet"
(tramp-login-program "telnet")
@@ -3059,6 +3081,7 @@ tramp-sh-handle-make-process
(setq uenv (cons elt uenv))))))
(env (setenv-internal
env "INSIDE_EMACS" (tramp-inside-emacs) 'keep))
+ (dtachp (string=3D (tramp-file-name-method v) "dtach"))
(command
(when (stringp program)
(format "cd %s && %s exec %s %s env %s %s"
@@ -3075,8 +3098,16 @@ tramp-sh-handle-make-process
(if heredoc
(format "%s\n(\n%s\n) </dev/tty\n%s"
program (car args) tramp-end-of-heredoc)
- (mapconcat #'tramp-shell-quote-argument
- (cons program args) " ")))))
+ (let ((cmd (mapconcat #'tramp-shell-quote-argument
+ (cons program args) " ")))
+ ;; FIXME: Only one process accounted for.
+ (when (and dtachp (not tramp-just-dtached))
+ (setq cmd
+ (format
+ ;; FIXME: Generalize sh etc.
+ "dtach -c /tmp/fozzle sh -c \"%s | t=
ee /tmp/buf\"; > /tmp/buf"
+ ;; FIXME: Quote quotes.
+ cmd))))))))
(tramp-process-connection-type
(or (null program) tramp-process-connection-type))
(bmp (and (buffer-live-p buffer) (buffer-modified-p buffer)))
@@ -3183,9 +3214,32 @@ tramp-sh-handle-make-process
v 'file-error
"pty association is not supported for `%s'" name))))
;; Set sentinel and filter.
- (when sentinel
- (set-process-sentinel p sentinel))
+ (when (or sentinel dtachp)
+ (set-process-sentinel
+ p (if dtachp
+ ;; So there ought to be no waits (sit-for
+ ;; etc.) that might trigger this, in
+ ;; tramp itself.
+ (lambda (proc event)
+ ;; TODO: Detect termination using tramp-=
just-dtached.
+ (if (and (eq proc tramp-to-dtach)
+ (string=3D event "finished\n"))
+ ;; FIXME: Check if too soon.
+ (with-current-buffer (process-buffer=
proc)
+ ;; Renew.
+ (tramp-sh-handle-make-process
+ ;; Applications may use the same =
name eventhough the object changes.
+ :name (process-name proc)
+ :buffer (process-buffer proc)
+ :command
+ '("sh" "-c" "cat /tmp/buf; dtach =
-a /tmp/fozzle; > /tmp/buf")
+ :filter (process-filter proc))
+ (setq tramp-just-dtached nil))
+ (funcall (or sentinel #'internal-defau=
lt-process-sentinel)
+ proc event)))
+ sentinel)))
(when filter
+ ;; FIXME: similar to sentinel. Have an interface =
such as :dtach-filter to make-process?
(set-process-filter p filter))
(process-put p 'remote-command orig-command)
;; Set query flag and process marker for this
@@ -3209,6 +3263,7 @@ tramp-sh-handle-make-process
(delete-process (get-buffer-process stderr)))
(ignore-errors
(delete-file remote-tmpstderr)))))
+ (when dtachp (setq tramp-to-dtach p))
;; Return process.
p)))
=20
@@ -5173,7 +5228,8 @@ tramp-maybe-open-connection
(let ((p (tramp-get-connection-process vec))
(process-name (tramp-get-connection-property vec " process-name"))
(process-environment (copy-sequence process-environment))
- (pos (with-current-buffer (tramp-get-connection-buffer vec) (point))))
+ (pos (with-current-buffer (tramp-get-connection-buffer vec) (point)))
+ (dtachp (string=3D (tramp-file-name-method vec) "dtach")))
=20
;; If Tramp opens the same connection within a short time frame,
;; there is a problem. We shall signal this.
@@ -5210,7 +5266,12 @@ tramp-maybe-open-connection
;; New connection must be opened.
(condition-case err
(unless (process-live-p p)
- (catch 'uname-changed
+ (when
+ (and dtachp tramp-to-dtach)
+ ;; FIXME: Check if alive.
+ (process-send-string tramp-to-dtach "=1C")
+ (setq tramp-just-dtached t))
+ (catch 'uname-changed`
;; Start new process.
(when (and p (processp p))
(delete-process p))
--=-=-=
Content-Type: text/plain
>>>>> - M-: (start-file-process "test" "test" "./test.sh")
Btw 'M-& ./test.sh' is enough.
--
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
Full text available.
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From: James Thomas <jimjoe@HIDDEN>
To: Michael Albinus <michael.albinus@HIDDEN>
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
In-Reply-To: <s48wm1ekrsc.fsf@HIDDEN>
References: <68310D70-1BAA-48F0-BB99-39E02A020BD1@HIDDEN>
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Date: Mon, 19 Jan 2026 16:50:34 +0530
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--=-=-=
Content-Type: text/plain
James Thomas <> writes:
> Michael Albinus <> writes:
>
>> James Thomas <> writes:
>>
>> Hi James,
>>
>>>> This is just a POC (as the littered FIXMEs testify) only to check
>>>> feasibility - any flaw? And more of a fix for bug#61350 than this,
>>>> so
>>>> bear with me for the test:
>>>>
>>>> - M-x cd /dtach:<server having dtach>: RET
>>>> - M-: (start-file-process "test" "test" "./test.sh") ([1] or maybe
>>>> another long-running process)
>>>> - C-x C-j
>>>>
>>>> With /ssh: it would block, but this works, with no visible defects
>>>> in
>>>> the async process, AFAICT.
>>>>
>>>> So I guess my question is: Does something like this - fully
>>>> fleshed
>>>> out - have a chance?
>>>
>>> This has a few (seemingly not critical) mistakes. Let me send an
>>> updated
>>> one.
>>
>> No problem, take your time. I didn't start yet to analyze in detail.
>>
>> Perhaps this: while scanning the patch shortly, my first impulse
>> was:
>> why an own method? This restricts the approach to just the ssh
>> method. Wouldn't it be better, to add it (controlled by method
>> parameters, for example) to any method of tramp-sh.el?
>
> That was my intention as well, but I didn't want to complicate things
> for a POC.
>
>> My experience from zillions of Tramp regression tests is, that the
>> problems happens more frequently for the sudo method but ssh.
>
> This won't work there because it very much _uses_ the ControlPersist
> and
> ControlMaster to achieve the async.
>
> But what I really wanted to know was what you think of the
> approach. The
> main problem with what I gave already is that it accidentally layered
> two dtach calls in the 'renewal'. But the test should still work.
>
> (That and the fact that I'm not sure of the extra efficiency eked out
> of
> using eq for the common string comparison)
>
> But I think I'll send in a proper patch now anyway...
(I might be called away, so) here's an updated POC:
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment; filename=tramp-test2.patch
Content-Transfer-Encoding: quoted-printable
diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index 457c9cf6b0e..dc5b225ada0 100644
=2D-- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -154,6 +154,10 @@ tramp-scp-force-scp-protocol
=20
The string is used in `tramp-methods'.")
=20
+;; FIXME: Instead, couldn't it simply be local to the shell process buffe=
r (but is it guaranteed t.e. if starting with direct-async)? Or turn into =
registry for unique ControlMaster sockets. Has for its value the running a=
sync proc.
+(defvar tramp-to-dtach nil)
+(defvar tramp-just-dtached nil)
+
(defcustom tramp-use-scp-direct-remote-copying nil
"Whether to use direct copying between two remote hosts."
:group 'tramp
@@ -284,6 +288,24 @@ tramp-use-scp-direct-remote-copying
(tramp-remote-shell ,tramp-default-remote-shell)
(tramp-remote-shell-login ("-l"))
(tramp-remote-shell-args ("-c"))))
+ ;; Copy of ssh. Separate so that one may run processes normally as well,=
alongside.
+ (add-to-list 'tramp-methods
+ `("dtach"
+ (tramp-login-program "ssh")
+ (tramp-login-args (("-l" "%u") ("-p" "%p")
+ ;; FIXME: Work into the auto=
-detection instead.
+ ("-o" "ControlPath=3Ddtach-C=
ontrolPath-%%r@%%h:%%p")
+ ("-o" "ControlMaster=3Dauto"=
)
+ ("-o" "ControlPersist=3Dyes"=
)
+ ("-e" "none")
+ ("-o" ,(format "SetEnv=3D\"TERM=3D%s\""
+ tramp-terminal-type))
+ ("%h")))
+ (tramp-async-args (("-q")))
+ (tramp-direct-async ("-t" "-t"))
+ (tramp-remote-shell ,tramp-default-remote-shell)
+ (tramp-remote-shell-login ("-l"))
+ (tramp-remote-shell-args ("-c"))))
(add-to-list 'tramp-methods
`("telnet"
(tramp-login-program "telnet")
@@ -3059,6 +3081,7 @@ tramp-sh-handle-make-process
(setq uenv (cons elt uenv))))))
(env (setenv-internal
env "INSIDE_EMACS" (tramp-inside-emacs) 'keep))
+ (dtachp (string=3D (tramp-file-name-method v) "dtach"))
(command
(when (stringp program)
(format "cd %s && %s exec %s %s env %s %s"
@@ -3075,8 +3098,16 @@ tramp-sh-handle-make-process
(if heredoc
(format "%s\n(\n%s\n) </dev/tty\n%s"
program (car args) tramp-end-of-heredoc)
- (mapconcat #'tramp-shell-quote-argument
- (cons program args) " ")))))
+ (let ((cmd (mapconcat #'tramp-shell-quote-argument
+ (cons program args) " ")))
+ ;; FIXME: Only one process accounted for.
+ (when (and dtachp (not tramp-just-dtached))
+ (setq cmd
+ (format
+ ;; FIXME: Generalize sh etc.
+ "dtach -c /tmp/fozzle sh -c \"%s | t=
ee /tmp/buf\"; > /tmp/buf"
+ ;; FIXME: Quote quotes.
+ cmd))))))))
(tramp-process-connection-type
(or (null program) tramp-process-connection-type))
(bmp (and (buffer-live-p buffer) (buffer-modified-p buffer)))
@@ -3174,6 +3205,7 @@ tramp-sh-handle-make-process
(delete-region mark (point-max))
(narrow-to-region (point-max) (point-max))
;; Now do it.
+ (message "Debug: %s" command)
(if command
;; Send the command.
(tramp-send-command v command nil t) ; nooutput
@@ -3183,9 +3215,33 @@ tramp-sh-handle-make-process
v 'file-error
"pty association is not supported for `%s'" name))))
;; Set sentinel and filter.
- (when sentinel
- (set-process-sentinel p sentinel))
+ (when (or sentinel dtachp)
+ (set-process-sentinel
+ p (if dtachp
+ ;; So there ought to be no waits (sit-for
+ ;; etc.) that might trigger this, in
+ ;; tramp itself.
+ (lambda (proc event)
+ (message "Debug: %s %s" proc event)
+ ;; TODO: Detect termination using tramp-=
just-dtached.
+ (if (and (eq proc tramp-to-dtach)
+ (string=3D event "finished\n"))
+ ;; FIXME: Check if too soon.
+ (with-current-buffer (process-buffer=
proc)
+ ;; Renew.
+ (tramp-sh-handle-make-process
+ ;; Applications may use the same =
name eventhough the object changes.
+ :name (process-name proc)
+ :buffer (process-buffer proc)
+ :command
+ '("sh" "-c" "cat /tmp/buf; sh -c =
\"dtach -a /tmp/fozzle; > /tmp/buf\"")
+ :filter (process-filter proc))
+ (setq tramp-just-dtached nil))
+ (funcall (or sentinel #'internal-defau=
lt-process-sentinel)
+ proc event)))
+ sentinel)))
(when filter
+ ;; FIXME: similar to sentinel. Have an interface =
such as :dtach-filter to make-process?
(set-process-filter p filter))
(process-put p 'remote-command orig-command)
;; Set query flag and process marker for this
@@ -3209,6 +3265,7 @@ tramp-sh-handle-make-process
(delete-process (get-buffer-process stderr)))
(ignore-errors
(delete-file remote-tmpstderr)))))
+ (when dtachp (setq tramp-to-dtach p))
;; Return process.
p)))
=20
@@ -5173,7 +5230,8 @@ tramp-maybe-open-connection
(let ((p (tramp-get-connection-process vec))
(process-name (tramp-get-connection-property vec " process-name"))
(process-environment (copy-sequence process-environment))
- (pos (with-current-buffer (tramp-get-connection-buffer vec) (point))))
+ (pos (with-current-buffer (tramp-get-connection-buffer vec) (point)))
+ (dtachp (string=3D (tramp-file-name-method vec) "dtach")))
=20
;; If Tramp opens the same connection within a short time frame,
;; there is a problem. We shall signal this.
@@ -5210,7 +5268,12 @@ tramp-maybe-open-connection
;; New connection must be opened.
(condition-case err
(unless (process-live-p p)
- (catch 'uname-changed
+ (when
+ (and dtachp tramp-to-dtach)
+ ;; FIXME: Check if alive.
+ (process-send-string tramp-to-dtach "=1C")
+ (setq tramp-just-dtached t))
+ (catch 'uname-changed`
;; Start new process.
(when (and p (processp p))
(delete-process p))
@@ -5362,6 +5425,7 @@ tramp-maybe-open-connection
(if (tramp-string-empty-or-nil-p l-user)
"" (concat l-user "@"))
(tramp-file-name-host-port hop) l-method)
+ ;; FIXME: Also run the (single) dtached shell (or s=
tart it up, if -to-dtach is nil or dead), but is the saved overhead beyond=
direct-async worth it?
(tramp-send-command vec command t t)
(tramp-process-actions
p vec
--=-=-=
Content-Type: text/plain
Test similarly.
--
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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From: James Thomas <jimjoe@HIDDEN>
To: Michael Albinus <michael.albinus@HIDDEN>
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
In-Reply-To: <87tswku1d6.fsf@HIDDEN>
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Date: Mon, 19 Jan 2026 12:33:47 +0530
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Content preview: Michael Albinus <> writes: > James Thomas <> writes: > > Hi
James, > >>> This is just a POC (as the littered FIXMEs testify) only to
check >>> feasibility - any flaw? And more of a fix for bug#61350 than this,
>>> so >>> bear w [...]
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Content preview: Michael Albinus <> writes: > James Thomas <> writes: > > Hi
James, > >>> This is just a POC (as the littered FIXMEs testify) only to
check >>> feasibility - any flaw? And more of a fix for bug#61350 than this,
>>> so >>> bear w [...]
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manager
Michael Albinus <> writes:
> James Thomas <> writes:
>
> Hi James,
>
>>> This is just a POC (as the littered FIXMEs testify) only to check
>>> feasibility - any flaw? And more of a fix for bug#61350 than this,
>>> so
>>> bear with me for the test:
>>>
>>> - M-x cd /dtach:<server having dtach>: RET
>>> - M-: (start-file-process "test" "test" "./test.sh") ([1] or maybe
>>> another long-running process)
>>> - C-x C-j
>>>
>>> With /ssh: it would block, but this works, with no visible defects
>>> in
>>> the async process, AFAICT.
>>>
>>> So I guess my question is: Does something like this - fully fleshed
>>> out - have a chance?
>>
>> This has a few (seemingly not critical) mistakes. Let me send an
>> updated
>> one.
>
> No problem, take your time. I didn't start yet to analyze in detail.
>
> Perhaps this: while scanning the patch shortly, my first impulse was:
> why an own method? This restricts the approach to just the ssh
> method. Wouldn't it be better, to add it (controlled by method
> parameters, for example) to any method of tramp-sh.el?
That was my intention as well, but I didn't want to complicate things
for a POC.
> My experience from zillions of Tramp regression tests is, that the
> problems happens more frequently for the sudo method but ssh.
This won't work there because it very much _uses_ the ControlPersist and
ControlMaster to achieve the async.
But what I really wanted to know was what you think of the approach. The
main problem with what I gave already is that it accidentally layered
two dtach calls in the 'renewal'. But the test should still work.
(That and the fact that I'm not sure of the extra efficiency eked out of
using eq for the common string comparison)
But I think I'll send in a proper patch now anyway...
--
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
Full text available.Received: (at 60534) by debbugs.gnu.org; 17 Jan 2026 07:47:44 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Jan 17 02:47:44 2026 Received: from localhost ([127.0.0.1]:51694 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1vh127-0005UA-Sw for submit <at> debbugs.gnu.org; Sat, 17 Jan 2026 02:47:44 -0500 Received: from mout.gmx.net ([212.227.17.22]:54757) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <michael.albinus@HIDDEN>) id 1vh125-0005Tk-7x for 60534 <at> debbugs.gnu.org; Sat, 17 Jan 2026 02:47:42 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.de; s=s31663417; t=1768636054; x=1769240854; i=michael.albinus@HIDDEN; bh=LtIXVzSHeD3Tenn7DyrRyDsXM38Wr/UbIopQ3oqIKPY=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date: Message-ID:MIME-Version:Content-Type:cc:content-transfer-encoding: 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<mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) James Thomas <jimjoe@HIDDEN> writes: Hi James, >> This is just a POC (as the littered FIXMEs testify) only to check >> feasibility - any flaw? And more of a fix for bug#61350 than this, so >> bear with me for the test: >> >> - M-x cd /dtach:<server having dtach>: RET >> - M-: (start-file-process "test" "test" "./test.sh") ([1] or maybe >> another long-running process) >> - C-x C-j >> >> With /ssh: it would block, but this works, with no visible defects in >> the async process, AFAICT. >> >> So I guess my question is: Does something like this - fully fleshed >> out - have a chance? > > This has a few (seemingly not critical) mistakes. Let me send an updated > one. No problem, take your time. I didn't start yet to analyze in detail. Perhaps this: while scanning the patch shortly, my first impulse was: why an own method? This restricts the approach to just the ssh method. Wouldn't it be better, to add it (controlled by method parameters, for example) to any method of tramp-sh.el? My experience from zillions of Tramp regression tests is, that the problems happens more frequently for the sudo method but ssh. Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
Full text available.Received: (at 60534) by debbugs.gnu.org; 17 Jan 2026 03:04:38 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Jan 16 22:04:38 2026 Received: from localhost ([127.0.0.1]:47363 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1vgwcA-00025D-8p for submit <at> debbugs.gnu.org; Fri, 16 Jan 2026 22:04:38 -0500 Received: from mout.gmx.net ([212.227.15.18]:58963) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <jimjoe@HIDDEN>) id 1vgwc7-00024c-4m for 60534 <at> debbugs.gnu.org; Fri, 16 Jan 2026 22:04:36 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.net; s=s31663417; t=1768619068; x=1769223868; i=jimjoe@HIDDEN; bh=2cPjOPXcnbD9iqny0sdUpJHlTtmvKPfe5EGusHPk3kw=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date: Message-ID:MIME-Version:Content-Type:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=GHi3JDpSiJm+jkbVv8Lc6XCJznd923fK/bjFzf5S7/x4TLFs5nXw4lEo5Sc2RMTA Jan6dprFHcQd5RR3+hEgV+aOLhT5F10S143LmfvWsei5Qj+eVlBg2lMNnNKjlKMtw NwBjm3bdTebX+qR+HDGm4Bx0GEKNGXy28P6Ktc/QXb3OysK6GtAAB6pIARzMPbu/A z60qYSbyJzWQq3vYn7eUyeAvf9Ngy9LJg6oXLLn24jyWiKjXcoQYUsMTCs88Tzztf lnCdrZ7b/VK7IKPNFg5MgBUvmAEGWPnUfNcONbz2kpXssrvFslxq09uDUuSMQ0E40 haGbV74SwooqwQuIpQ== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from localhost ([42.108.22.17]) by mail.gmx.net (mrgmx004 [212.227.17.184]) with ESMTPSA (Nemesis) id 1MulqD-1vy49g1m8R-00xYYh; Sat, 17 Jan 2026 04:04:28 +0100 From: James Thomas <jimjoe@HIDDEN> To: Michael Albinus <michael.albinus@HIDDEN> Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp In-Reply-To: <s48qzrrm8dj.fsf@HIDDEN> References: <68310D70-1BAA-48F0-BB99-39E02A020BD1@HIDDEN> <39F26289-35B3-4FB8-8DC5-5B4EC228DF73@HIDDEN> <87347rupqa.fsf@HIDDEN> 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<https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) James Thomas <> writes: > Michael Albinus <> writes: > >> James Thomas <> writes: >> >> Hi James, >> >>> I'd meant for dtach to be run on the remote server itself, not >>> locally. Anyway, let me see whether I could work out a patch... >> >> Please do. And contact me, if you have questions about the Tramp >> code. >> >>> Thank you for your help. >>> >>> Regards, >>> James >> >> Best regards, Michael. > > This is just a POC (as the littered FIXMEs testify) only to check > feasibility - any flaw? And more of a fix for bug#61350 than this, so > bear with me for the test: > > - M-x cd /dtach:<server having dtach>: RET > - M-: (start-file-process "test" "test" "./test.sh") ([1] or maybe > another long-running process) > - C-x C-j > > With /ssh: it would block, but this works, with no visible defects in > the async process, AFAICT. > > So I guess my question is: Does something like this - fully fleshed > out - have a chance? > > > > 1: > > while : > do > date > sleep 60 > done This has a few (seemingly not critical) mistakes. Let me send an updated one. --
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From: James Thomas <jimjoe@HIDDEN>
To: Michael Albinus <michael.albinus@HIDDEN>
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
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--=-=-=
Content-Type: text/plain
Michael Albinus <> writes:
> James Thomas <> writes:
>
> Hi James,
>
>> I'd meant for dtach to be run on the remote server itself, not
>> locally. Anyway, let me see whether I could work out a patch...
>
> Please do. And contact me, if you have questions about the Tramp code.
>
>> Thank you for your help.
>>
>> Regards,
>> James
>
> Best regards, Michael.
This is just a POC (as the littered FIXMEs testify) only to check feasibility - any flaw? And more of a fix for bug#61350 than this, so bear with me for the test:
- M-x cd /dtach:<server having dtach>: RET
- M-: (start-file-process "test" "test" "./test.sh") ([1] or maybe another long-running process)
- C-x C-j
With /ssh: it would block, but this works, with no visible defects in the async process, AFAICT.
So I guess my question is: Does something like this - fully fleshed out - have a chance?
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment; filename=tramp-test.patch
Content-Transfer-Encoding: quoted-printable
diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index 457c9cf6b0e..799b7ae671d 100644
=2D-- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -154,6 +154,9 @@ tramp-scp-force-scp-protocol
=20
The string is used in `tramp-methods'.")
=20
+;; FIXME: Instead, couldn't it simply be local to the shell process buffe=
r (but is it guaranteed t.e. if starting with direct-async)? Or turn into =
registry for unique ControlMaster sockets. Has for its value the running a=
sync proc.
+(defvar tramp-to-dtach nil)
+
(defcustom tramp-use-scp-direct-remote-copying nil
"Whether to use direct copying between two remote hosts."
:group 'tramp
@@ -284,6 +287,24 @@ tramp-use-scp-direct-remote-copying
(tramp-remote-shell ,tramp-default-remote-shell)
(tramp-remote-shell-login ("-l"))
(tramp-remote-shell-args ("-c"))))
+ ;; Copy of ssh. Separate so that one may run processes normally as well,=
alongside.
+ (add-to-list 'tramp-methods
+ `("dtach"
+ (tramp-login-program "ssh")
+ (tramp-login-args (("-l" "%u") ("-p" "%p")
+ ;; FIXME: Work into the auto=
-detection instead.
+ ("-o" "ControlPath=3Ddtach-C=
ontrolPath-%%r@%%h:%%p")
+ ("-o" "ControlMaster=3Dauto"=
)
+ ("-o" "ControlPersist=3Dyes"=
)
+ ("-e" "none")
+ ("-o" ,(format "SetEnv=3D\"TERM=3D%s\""
+ tramp-terminal-type))
+ ("%h")))
+ (tramp-async-args (("-q")))
+ (tramp-direct-async ("-t" "-t"))
+ (tramp-remote-shell ,tramp-default-remote-shell)
+ (tramp-remote-shell-login ("-l"))
+ (tramp-remote-shell-args ("-c"))))
(add-to-list 'tramp-methods
`("telnet"
(tramp-login-program "telnet")
@@ -3059,6 +3080,7 @@ tramp-sh-handle-make-process
(setq uenv (cons elt uenv))))))
(env (setenv-internal
env "INSIDE_EMACS" (tramp-inside-emacs) 'keep))
+ (dtachp (string=3D (tramp-file-name-method v) "dtach"))
(command
(when (stringp program)
(format "cd %s && %s exec %s %s env %s %s"
@@ -3075,8 +3097,17 @@ tramp-sh-handle-make-process
(if heredoc
(format "%s\n(\n%s\n) </dev/tty\n%s"
program (car args) tramp-end-of-heredoc)
- (mapconcat #'tramp-shell-quote-argument
- (cons program args) " ")))))
+ (let ((cmd (mapconcat #'tramp-shell-quote-argument
+ (cons program args) " ")))
+ ;; FIXME: Only one process accounted for.
+ (when dtachp
+ (setq cmd
+ (format
+ ;; FIXME: Generalize sh etc.
+ ;; TODO: Detect termination using "c=
anary" file.
+ "dtach -c /tmp/fozzle sh -c \"%s | t=
ee /tmp/buf\"; > /tmp/buf"
+ ;;FIXME: Quote quotes.
+ cmd))))))))
(tramp-process-connection-type
(or (null program) tramp-process-connection-type))
(bmp (and (buffer-live-p buffer) (buffer-modified-p buffer)))
@@ -3174,6 +3205,7 @@ tramp-sh-handle-make-process
(delete-region mark (point-max))
(narrow-to-region (point-max) (point-max))
;; Now do it.
+ (message "Debug: %s" command)
(if command
;; Send the command.
(tramp-send-command v command nil t) ; nooutput
@@ -3183,9 +3215,30 @@ tramp-sh-handle-make-process
v 'file-error
"pty association is not supported for `%s'" name))))
;; Set sentinel and filter.
- (when sentinel
- (set-process-sentinel p sentinel))
+ (when (or sentinel dtachp)
+ (set-process-sentinel
+ p (if dtachp
+ ;; So there has to be no sit-for etc. in t=
he way of getting here.
+ (lambda (proc event)
+ (message "Debug: %s %s" proc event)
+ (if (and (eq proc tramp-to-dtach)
+ (eq event "finished\n"))
+ ;; FIXME: Check if too soon.
+ (with-current-buffer (process-buffer=
proc)
+ ;; TODO: Detect termination using =
"canary" file.
+ ;; Renew.
+ (tramp-sh-handle-make-process
+ ;; Applications may use the same =
name eventhough the object changes.
+ :name (process-name proc)
+ :buffer (process-buffer proc)
+ :command
+ '("sh" "-c" "cat /tmp/buf; sh -c =
\"dtach -a /tmp/fozzle; > /tmp/buf\"")
+ :filter (process-filter proc)))
+ (funcall (or sentinel #'internal-defau=
lt-process-sentinel)
+ proc event)))
+ sentinel)))
(when filter
+ ;; FIXME: similar to sentinel. Have an interface =
such as :dtach-filter to make-process?
(set-process-filter p filter))
(process-put p 'remote-command orig-command)
;; Set query flag and process marker for this
@@ -3209,6 +3262,7 @@ tramp-sh-handle-make-process
(delete-process (get-buffer-process stderr)))
(ignore-errors
(delete-file remote-tmpstderr)))))
+ (when dtachp (setq tramp-to-dtach p))
;; Return process.
p)))
=20
@@ -5173,7 +5227,8 @@ tramp-maybe-open-connection
(let ((p (tramp-get-connection-process vec))
(process-name (tramp-get-connection-property vec " process-name"))
(process-environment (copy-sequence process-environment))
- (pos (with-current-buffer (tramp-get-connection-buffer vec) (point))))
+ (pos (with-current-buffer (tramp-get-connection-buffer vec) (point)))
+ (dtachp (string=3D (tramp-file-name-method vec) "dtach")))
=20
;; If Tramp opens the same connection within a short time frame,
;; there is a problem. We shall signal this.
@@ -5210,7 +5265,11 @@ tramp-maybe-open-connection
;; New connection must be opened.
(condition-case err
(unless (process-live-p p)
- (catch 'uname-changed
+ (when
+ (and dtachp tramp-to-dtach)
+ ;; FIXME: Check if alive.
+ (process-send-string tramp-to-dtach "=1C"))
+ (catch 'uname-changed`
;; Start new process.
(when (and p (processp p))
(delete-process p))
@@ -5362,6 +5421,7 @@ tramp-maybe-open-connection
(if (tramp-string-empty-or-nil-p l-user)
"" (concat l-user "@"))
(tramp-file-name-host-port hop) l-method)
+ ;; FIXME: Also run the (single) dtached shell (or s=
tart it up, if -to-dtach is nil or dead), but is the saved overhead beyond=
direct-async worth it?
(tramp-send-command vec command t t)
(tramp-process-actions
p vec
--=-=-=
Content-Type: text/plain
1:
while :
do
date
sleep 60
done
--
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
Full text available.Received: (at 60534) by debbugs.gnu.org; 13 Nov 2025 07:11:24 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Nov 13 02:11:24 2025 Received: from localhost ([127.0.0.1]:53911 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1vJRUJ-0006r4-NS for submit <at> debbugs.gnu.org; Thu, 13 Nov 2025 02:11:24 -0500 Received: from mout.gmx.net ([212.227.17.22]:45229) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <michael.albinus@HIDDEN>) id 1vJRUG-0006qu-M8 for 60534 <at> debbugs.gnu.org; Thu, 13 Nov 2025 02:11:22 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.de; s=s31663417; t=1763017874; x=1763622674; i=michael.albinus@HIDDEN; bh=i2qII1jc86fXA9hW9WlD6yYYstL2QGk6A9q3lwrJ7Ak=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date: Message-ID:MIME-Version:Content-Type:cc:content-transfer-encoding: 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alHOJS3QGzPspG8cahyp+SWjJuaLxAD/7GuvRjECSmWC3HdS/709oIlR6kXn+EJyHa4Hjkb5f cJpNAU3ipBueu/m+zTN+NTrm8U69EaNsNqLBD90otPIsI2AUAZUqP4DHefkoDTNd68LR22sSn /vmAr8ffcuFLzKMrv/2TTVy4bgcSwcC6A44NaytcTbm/nIGNTuLPhC8Yq8g9tEl1EgNJ10CUY KzbHRxfjgLPeClVNcPU+/YdcFgfN7dUGV1XY6yHrjvK4VjICLksZBAMHnpArYPRl+K8jv/OLS P6t3zIRhaWPQz8Hhs= X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 60534 Cc: 60534 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) James Thomas <jimjoe@HIDDEN> writes: Hi James, > I'd meant for dtach to be run on the remote server itself, not > locally. Anyway, let me see whether I could work out a patch... Please do. And contact me, if you have questions about the Tramp code. > Thank you for your help. > > Regards, > James Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) Michael Albinus <> writes: > James Thomas <> writes: > > Hi James, > >> Oh, perhaps you were thinking of 'back-and-forth' switching between >> 'parallel' processes? There'd be no such thing here; It's a one-way >> street: subsequent processes have to complete before resuming an >> earlier one. In that sense, it would mirror the control flow of the >> single threaded Emacs itself. > > No, that is not the problem of back-and-forth. It is the scenario (on > the local side): > > - Tramp handles a given request. > > - A timer or process-filter requests something else. We dtach the > remote > shell, and handle the 2nd request. While doing so, a function > definition is sent remote. I'd meant for dtach to be run on the remote server itself, not locally. Anyway, let me see whether I could work out a patch... > > - The 2nd request is handled, and we're back to the original > request. The same function definition is needed later on. Tramp > believes, it has sent it already, and trusts the availability of the > definition on the remote side. But it fails. > > Best regards, Michael. Thank you for your help. Regards, James
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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content-type:date:from:message-id:mime-version:reply-to:subject: to; b=gBhNpaSLGgCGy1/h2RjhY+AAOnqvPuw6BSf+4MyoE9ZuxYIRKgiPxohIH3IBClzK 3Qq3p+kWy5/b7ezbKlZrqdNmvbpqLlOkUBobGrpePHJU74hMa6IrOr0ifYLIZEIu3 Mo/tM18wRgROuuKD571PjIgLRhPbJuvY0UZNeow1Zkd1jXiY2QA4T4S/eyUMCay73 lQlaMnedgT1429mXfGz4jZd4SfrhUQ2bGID/BvEOaM04ZOD5ylJQ137wfYZmDuDfV /DYI7z+Y4YLuEuovKVbDPodhR6w/PGq7mUj8lPimGnrPncT9xl+Ugn7juwX3uCqki 2XKtZIw0eUssKUXXsQ== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from gandalf.gmx.de ([185.89.37.61]) by mail.gmx.net (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MryT9-1w0c9p4BNN-00jzAB; Sun, 02 Nov 2025 11:26:21 +0100 From: Michael Albinus <michael.albinus@HIDDEN> To: James Thomas <jimjoe@HIDDEN> Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp In-Reply-To: <6C31B72A-3CB4-4763-9F03-6820BEB22E03@HIDDEN> References: <68310D70-1BAA-48F0-BB99-39E02A020BD1@HIDDEN> <39F26289-35B3-4FB8-8DC5-5B4EC228DF73@HIDDEN> <87347rupqa.fsf@HIDDEN> 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<debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) James Thomas <jimjoe@HIDDEN> writes: Hi James, > Oh, perhaps you were thinking of 'back-and-forth' switching between > 'parallel' processes? There'd be no such thing here; It's a one-way > street: subsequent processes have to complete before resuming an > earlier one. In that sense, it would mirror the control flow of the > single threaded Emacs itself. No, that is not the problem of back-and-forth. It is the scenario (on the local side): - Tramp handles a given request. - A timer or process-filter requests something else. We dtach the remote shell, and handle the 2nd request. While doing so, a function definition is sent remote. - The 2nd request is handled, and we're back to the original request. The same function definition is needed later on. Tramp believes, it has sent it already, and trusts the availability of the definition on the remote side. But it fails. Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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content-type:date:from:message-id:mime-version:reply-to:subject: to; b=G4WXiBvscSVzC2veMo3bkl4pZBTsU+rOcx5OoNVNaKKO67rcv+25Dzw1ElEy5VFG 6zJLjVhts/6Ai1M2iwBEqUlj7TgwasWldzF9qcbau1YmZLB0QOhTJWCIYlboU4d3e 2767Sr0EX1J9hItaOT4KL7PdUKEIR52mHKQwnC2BQKUqTnByTt7LtWiil4zo577L8 a9yn0GDaKToVdeDgVUA7fj6b/8TsZmap5PTP3sbxuMOjX2faSfHjOVxL8ElB4evCx Pm3WP6/TSUbNmBq5fJnq6sudXxhb7nppew/jGIqGCZsIhZ+BSxKOEvSU5sR+0BKy5 s17odEX+OgLQ9D4FTA== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from gandalf.gmx.de ([185.89.37.61]) by mail.gmx.net (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MbRfl-1vqlu41hiz-00ci6M; Sun, 02 Nov 2025 11:21:29 +0100 From: Michael Albinus <michael.albinus@HIDDEN> To: James Thomas <jimjoe@HIDDEN> Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp In-Reply-To: <815F232A-BC39-4546-87FD-045382E8EDE1@HIDDEN> References: <68310D70-1BAA-48F0-BB99-39E02A020BD1@HIDDEN> <39F26289-35B3-4FB8-8DC5-5B4EC228DF73@HIDDEN> <87347rupqa.fsf@HIDDEN> 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Thomas <jimjoe@HIDDEN> writes: Hi James, >> And what, if a dtached process needs auxiliary shell functions? Tramp >> sends the function definition on the fly to the remote. But this will be >> enabled just in one of the parallel processes. Tramp would need also >> additional book-keeping what is known where. > > Btw I'm not sure what you meant, here. Won't these definitions be sent > to the shell, where every process is started, right before doing so? No. These definitions are sent to the remote shell on-the-fly, just when needed. This reduces round-trips, because not all definitions are needed in a given remote connection. > Regards, > James Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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content-transfer-encoding:content-type:date:from:message-id: mime-version:reply-to:subject:to; b=mpvayWtEHnDyAv4oGKf7LMf0Jad/PFNt9GbazgeP/vBRExihGCl22lO5NQ4xczT0 LKrlHNbDKePAT2yTveJkCyiy7tozG4IGTBRA8O4Qb+MyYlQnPnN4s36po8RXGkSjH wqcyKu89jeoSFJACtveN6RX/GocvBwwzH2Xf9crt4AMUwXolmPskNcX45owO0qSCv dHWBpvOicDLEuGjb1eiWolPPDvXtG9u/uizIwvIGsoPwweUD3UHnsyGBYftpJ2ibt Xohv1JOET1NoXHq4W7+q0plZSsmrg33kD/ZzbLi1ejzQyKsR85zMGT2SdclLniCBM xg0h1loa8pq7l15LWQ== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from ehlo.thunderbird.net ([182.60.228.53]) by mail.gmx.net (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MK3Vu-1vYLA73vIc-00KejH; Sat, 01 Nov 2025 13:26:18 +0100 Date: Sat, 01 Nov 2025 17:56:14 +0530 From: James Thomas <jimjoe@HIDDEN> To: Michael Albinus <michael.albinus@HIDDEN> Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp In-Reply-To: <815F232A-BC39-4546-87FD-045382E8EDE1@HIDDEN> References: <68310D70-1BAA-48F0-BB99-39E02A020BD1@HIDDEN> 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X-Spam-Score: -1.7 (-) On October 30, 2025 7:29:43 PM GMT+05:30, James Thomas <jt> wrote: > On October 20, 2025 6:24:17 PM GMT+05:30, Michael Albinus <> wrote: > > James Thomas <jimjoe@gmx=2Enet> writes: > >=20 > > Hi James, > >=20 > > > I'd only meant this as a way of avoiding 'deadlock' in the case of A > > > waiting on B to proceed=2E > > > > > > FTR, a better scheme than the above for that might be: > > > > > > - Start the process via dtach, with stdout > buffer=2E > > > - 'tail' it in the background=2E > > > - Use dtach -p to < stdin to the session=2E > > > > > > To temporarily switch to another process: > > > > > > - ^C > > > - Clear the buffer=2E > > > - Kill the 'tail' process=2E > > > - Repeat the setup above for the new process=2E > > > > > > To switch back: > > > > > > - 'tail' buffer, starting with the whole of it, in the background=2E > > > - Rerun the dtach -p=2E > > > > > > (This runs the risk of a 'race' of any input sent being stale becaus= e of > > > having missed later output by 'tail's delay=2E But we're usually sur= e of > > > what we send in this case, isn't it?) > >=20 > > This sounds too complicate=2E We're not sure that just a one detached > > process is sufficient=2E What if there are several running timers, all= of > > them wanting to do remote access? How many dtached processes do we wan= t > > to handle in parallel? > >=20 > > And what, if a dtached process needs auxiliary shell functions? Tramp > > sends the function definition on the fly to the remote=2E But this wil= l be > > enabled just in one of the parallel processes=2E Tramp would need also > > additional book-keeping what is known where=2E >=20 > Btw I'm not sure what you meant, here=2E Won't these definitions be sent= to the shell, where every process is started, right before doing so? Oh, perhaps you were thinking of 'back-and-forth' switching between 'paral= lel' processes? There'd be no such thing here; It's a one-way street: subse= quent processes have to complete before resuming an earlier one=2E In that = sense, it would mirror the control flow of the single threaded Emacs itself= =2E --
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
Full text available.Received: (at 60534) by debbugs.gnu.org; 30 Oct 2025 14:00:13 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Oct 30 10:00:13 2025 Received: from localhost ([127.0.0.1]:36164 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1vETCG-0002om-9A for submit <at> debbugs.gnu.org; Thu, 30 Oct 2025 10:00:13 -0400 Received: from mout.gmx.net ([212.227.15.15]:47383) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <jimjoe@HIDDEN>) id 1vETC0-0002gT-3b for 60534 <at> debbugs.gnu.org; Thu, 30 Oct 2025 09:59:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.net; s=s31663417; t=1761832788; x=1762437588; i=jimjoe@HIDDEN; bh=5S4SJJfSl1EGbFkASBcntI6cvqhq/I9z9f+2Dr7OmgE=; h=X-UI-Sender-Class:Date:From:To:CC:Subject:In-Reply-To:References: Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:cc: content-transfer-encoding:content-type:date:from:message-id: mime-version:reply-to:subject:to; b=bYkIRkWuWHt1NFDFTeFtA1lPtRz4Gz5vM3zuI3jKRUUnFdkWHMGayeMRUA+aJ66T 0NAOG8KhywEg5tzit68UukPlQlfbxPEGPmGRgBOE1uvJznl01kwhpy8cMFEkS7Rd4 UAfSPhRpg7Nj32n8N0eaKei7UMPAz+MXuM3QUVj/LMHPOPl6PBgAbNFEJRV3gj0Ut PKkfyQHIDRQCCQjLEXX3w5PZcPmgvCFoQvwtNBRKIZTvCoJgyVqZoUI1G8pA/EkWd PpjroqJcFK+5GInDFpmzA04dmG2bXoVX4QXkosK5ZL9bd0paZ6WS1zrKDHEGlYA9a xLnrT+qEFYVItto66g== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from ehlo.thunderbird.net ([42.108.25.8]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MYvY2-1vjBKN3HgO-00QFIW; Thu, 30 Oct 2025 14:59:48 +0100 Date: Thu, 30 Oct 2025 19:29:43 +0530 From: James Thomas <jimjoe@HIDDEN> To: Michael Albinus <michael.albinus@HIDDEN> Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp In-Reply-To: <871pmxsphi.fsf@HIDDEN> References: <68310D70-1BAA-48F0-BB99-39E02A020BD1@HIDDEN> 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X-Spam-Score: -1.7 (-) On October 20, 2025 6:24:17 PM GMT+05:30, Michael Albinus <michael=2Ealbinu= s@gmx=2Ede> wrote: > James Thomas <jimjoe@gmx=2Enet> writes: >=20 > Hi James, >=20 > > I'd only meant this as a way of avoiding 'deadlock' in the case of A > > waiting on B to proceed=2E > > > > FTR, a better scheme than the above for that might be: > > > > - Start the process via dtach, with stdout > buffer=2E > > - 'tail' it in the background=2E > > - Use dtach -p to < stdin to the session=2E > > > > To temporarily switch to another process: > > > > - ^C > > - Clear the buffer=2E > > - Kill the 'tail' process=2E > > - Repeat the setup above for the new process=2E > > > > To switch back: > > > > - 'tail' buffer, starting with the whole of it, in the background=2E > > - Rerun the dtach -p=2E > > > > (This runs the risk of a 'race' of any input sent being stale because = of > > having missed later output by 'tail's delay=2E But we're usually sure = of > > what we send in this case, isn't it?) >=20 > This sounds too complicate=2E We're not sure that just a one detached > process is sufficient=2E What if there are several running timers, all o= f > them wanting to do remote access? How many dtached processes do we want > to handle in parallel? >=20 > And what, if a dtached process needs auxiliary shell functions? Tramp > sends the function definition on the fly to the remote=2E But this will = be > enabled just in one of the parallel processes=2E Tramp would need also > additional book-keeping what is known where=2E Btw I'm not sure what you meant, here=2E Won't these definitions be sent t= o the shell, where every process is started, right before doing so? Regards, James Hi Michael, --
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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content-transfer-encoding:content-type:date:from:message-id: mime-version:reply-to:subject:to; b=VSbGmoolOMwXsEndObtNOILPJIrZdqp1XzNDfFImTzgsXJWdlETOwbMfyTMckEeX qilU6VkV+tV7Wey/iF7PiYSolUw4PB1J7wGtHwSRcBIJz1qT6qrECule9F1V3m8zt j3oQ7EEwSBhXP7C01PJzT92mVX6A90pIjVzvD75ijD+2uAqA83A3DTgtVMt2CdOvJ irc4v6hDNYXnOmKhyZr65wC4Cme1EclCMwUwEqJgZaA/iugwlhX6ZloOVcXJyBPz+ u8UgGUw/vo+FVqeCzXxX4heTnrQ9+8NhdlAgwx6Mmpd4pzkaFXc3qmWRV/r3zx6KQ tjW74ZdiQQk4kh7umQ== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from ehlo.thunderbird.net ([42.108.25.8]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MEm6L-1vT1rF2xxL-005z8t; Thu, 30 Oct 2025 13:30:03 +0100 Date: Thu, 30 Oct 2025 17:59:59 +0530 From: James Thomas <jimjoe@HIDDEN> To: Michael Albinus <michael.albinus@HIDDEN> Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp In-Reply-To: <871pmxsphi.fsf@HIDDEN> References: <68310D70-1BAA-48F0-BB99-39E02A020BD1@HIDDEN> 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X-Spam-Score: -1.7 (-) On October 20, 2025 6:24:17 PM GMT+05:30, Michael Albinus <michael=2Ealbinu= s@gmx=2Ede> wrote: > James Thomas <jimjoe@gmx=2Enet> writes: >=20 > Hi James, >=20 > > I'd only meant this as a way of avoiding 'deadlock' in the case of A > > waiting on B to proceed=2E > > > > FTR, a better scheme than the above for that might be: > > > > - Start the process via dtach, with stdout > buffer=2E > > - 'tail' it in the background=2E > > - Use dtach -p to < stdin to the session=2E > > > > To temporarily switch to another process: > > > > - ^C > > - Clear the buffer=2E > > - Kill the 'tail' process=2E > > - Repeat the setup above for the new process=2E > > > > To switch back: > > > > - 'tail' buffer, starting with the whole of it, in the background=2E > > - Rerun the dtach -p=2E > > > > (This runs the risk of a 'race' of any input sent being stale because = of > > having missed later output by 'tail's delay=2E But we're usually sure = of > > what we send in this case, isn't it?) >=20 > This sounds too complicate=2E We're not sure that just a one detached > process is sufficient=2E What if there are several running timers, all o= f > them wanting to do remote access? How many dtached processes do we want > to handle in parallel? >=20 > And what, if a dtached process needs auxiliary shell functions? Tramp > sends the function definition on the fly to the remote=2E But this will = be > enabled just in one of the parallel processes=2E Tramp would need also > additional book-keeping what is known where=2E This was motivated, actually, only by the narrow use case of bug#61350 whe= re ControlMaster had to be disabled=2E I saw it used only for a long-runnin= g first process=2E > No, I'm not convinced=2E Perhaps somebody shows a simple and robust patc= h > implementing this approach, and I would be willing to review=2E But unle= ss > I'm convinced, I won't start a patch myself=2E Of course not! :-) Sorry if I seemed to suggest so=2E I just wanted to know if it was known to be impossible for some reason=2E > > Regards, > > James >=20 > Best regards, Michael=2E Hi Michael, Thanks & regards, James
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
Full text available.Received: (at 60534) by debbugs.gnu.org; 20 Oct 2025 12:54:30 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Oct 20 08:54:30 2025 Received: from localhost ([127.0.0.1]:44613 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1vApPB-0004Yx-EE for submit <at> debbugs.gnu.org; Mon, 20 Oct 2025 08:54:30 -0400 Received: from mout.gmx.net ([212.227.15.18]:46821) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <michael.albinus@HIDDEN>) id 1vApP7-0004YH-Jo for 60534 <at> debbugs.gnu.org; Mon, 20 Oct 2025 08:54:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.de; s=s31663417; t=1760964858; x=1761569658; i=michael.albinus@HIDDEN; bh=kyk3T867o1G2jZ8rs8VCd3ITPEJ8DBg8KWpL93brQcY=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date: Message-ID:MIME-Version:Content-Type:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=gqzJblq8RvYzhs3ohLHn1ZgDg+fq5DJ28Q3JSoiQUTxstf8yrY0rw2zB/j9JQ/iF pMO3++MsuNWx9Rkg/iAlkI+k5KJ7/6gYDFE0rpUbdHO+iy1featzT3lXTuVtouVrE NmD0y6mRt1IwjJrTODqMRkHsT6d2aEPtYoWf5d5+qj62UtQ7z4SxHQOOQgvIM3rMF y0PINelez3/fKIKQmWGKYkiuuWzBrYkU9aMeHJiSEI5ascbP22eDzP8OrIlRshY8u LeDqyBY5ubnCujfkMeJY7VAhYjfLGfa/xrynJVI7LSYZY3LBWEmDJpxaLW/lIqKqA l8Sw2gzkRmjPeQB1Jw== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from gandalf.gmx.de ([185.89.37.61]) by mail.gmx.net (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1N5mGH-1u8vGT18ah-012BvP; Mon, 20 Oct 2025 14:54:18 +0200 From: Michael Albinus <michael.albinus@HIDDEN> To: James Thomas <jimjoe@HIDDEN> Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp In-Reply-To: <s2dcy6j8dms.fsf@HIDDEN> References: <68310D70-1BAA-48F0-BB99-39E02A020BD1@HIDDEN> <39F26289-35B3-4FB8-8DC5-5B4EC228DF73@HIDDEN> <87347rupqa.fsf@HIDDEN> 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60534 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) James Thomas <jimjoe@HIDDEN> writes: Hi James, > I'd only meant this as a way of avoiding 'deadlock' in the case of A > waiting on B to proceed. > > FTR, a better scheme than the above for that might be: > > - Start the process via dtach, with stdout > buffer. > - 'tail' it in the background. > - Use dtach -p to < stdin to the session. > > To temporarily switch to another process: > > - ^C > - Clear the buffer. > - Kill the 'tail' process. > - Repeat the setup above for the new process. > > To switch back: > > - 'tail' buffer, starting with the whole of it, in the background. > - Rerun the dtach -p. > > (This runs the risk of a 'race' of any input sent being stale because of > having missed later output by 'tail's delay. But we're usually sure of > what we send in this case, isn't it?) This sounds too complicate. We're not sure that just a one detached process is sufficient. What if there are several running timers, all of them wanting to do remote access? How many dtached processes do we want to handle in parallel? And what, if a dtached process needs auxiliary shell functions? Tramp sends the function definition on the fly to the remote. But this will be enabled just in one of the parallel processes. Tramp would need also additional book-keeping what is known where. No, I'm not convinced. Perhaps somebody shows a simple and robust patch implementing this approach, and I would be willing to review. But unless I'm convinced, I won't start a patch myself. > Regards, > James Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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From: James Thomas <jimjoe@HIDDEN>
To: Michael Albinus <michael.albinus@HIDDEN>
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
In-Reply-To: <s2dcy6j8dms.fsf@HIDDEN> (James
Thomas's message of "Sun, 19 Oct 2025 14:36:03 +0530")
References: <68310D70-1BAA-48F0-BB99-39E02A020BD1@HIDDEN>
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Date: Sun, 19 Oct 2025 14:49:56 +0530
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Content preview: James Thomas <> writes: > Michael Albinus <> writes: > >>
James Thomas <> writes: >> >> Hi James, >> >>>> > > To detail (AISI and total
guesswork), for the missing output >>>> > > between 'attachments': >>>> >
> >>>> > > Rig [...]
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Content preview: James Thomas <> writes: > Michael Albinus <> writes: > >>
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> >>>> > > Rig [...]
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manager
James Thomas <> writes:
> Michael Albinus <> writes:
>
>> James Thomas <> writes:
>>
>> Hi James,
>>
>>>> > > To detail (AISI and total guesswork), for the missing output
>>>> > > between 'attachments':
>>>> > >
>>>> > > Right after detaching, attach a second background dtach
>>>> > > 'client' just to collect output, (and detach it) and cat its
>>>> > > buffer file's contents prior to the main reattachment.
>>>> > >
>>>> > > If the delays above are problematic (race conditions?), do it
>>>> > > beforehand at process start itself, and clear it ('bash -c ">
>>>> > > buffer"'
>>>> > > ?) right before the main detachment (in that case, perhaps use
>>>> > > this
>>>> > > only for these cases so that the buffer doesn't keep growing
>>>> > > large).
>>>> >=20
>>>> > The problem in Tramp is not the "missing output". It's rather a
>>>> > race
>>>> > condition. Imagine, you have two funtions accessing the remote
>>>> > process
>>>> > inparallel. There are several shell commands needed to finish
>>>> > the
>>>> > function. For example
>>>> >=20
>>>>=20
>>>> AISI:
>>>>=20
>>>> > functionA: "cd /path/to/dir; do something"
>>>> > functionB: "cd /somewhere/else; do something else"
>>>> >=20
>>>>=20
>>>> functionA: "<send dtach char>; cd /path/to/dir; dtach <args> do
>>>> something"
>>>> (and ditto for B)
>>>
>>> Isolating a single nesting (using the 2nd approach), this is, more
>>> accurately:
>>>
>>> functionA: "cd /path/to/dir; dtach <args> do something | tee <args>
>>> buffer"
>>> functionB: "<send dtach char C-\> > buffer; cd /somewhere/else; do
>>> something else; cd /path/to/dir; cat buffer; dtach <reattach args>"
>>>
>>>>=20
>>>> > If they disturb each other after the cd command, we would get
>>>> > errors. I
>>>> > don't see how dtach could solve this.
>>> (Resending, with some more context, since my earlier message seems
>>> not to have arrived at debbugs)
>>> Some more considerations regarding any borderline race conditions:
>>>
>>> - Any priority for receiving output from dtach's master process, I
>>> assume are, ceteris paribus, in the ordinal rank of the child
>>> client
>>> processes.
>>>
>>> - To account for any maximal marginal delays above, the output of
>>> the 'real' process could be intentionally delayed at specific
>>> message separators (such as newlines) by piping it through
>>> something
>>> by default.
>>>
>>> So my question is:
>>>
>>> Is all this totally ignorant of something?
>>
>> I haven't tested your dtach scenario (I guess it works remotely as
>> described). The problem is still attribution of the process output in
>> Tramp, whether it belongs to functionA or functionB.
>>
>> Remember, the Tramp control flow is (modulo error handling):
>>
>> function(A or B):
>> - assemble the needed command for the remote shell
>> - send it to the remote via tramp-send-command
>> - call accept-process-output until a shell prompt is detected
>> - collect the output from the output buffer and let function(A or B)
>> handle it
>>
>> We have only one process available (Tramp's so called connection
>> process), which is responsible for sending the command to the remote,
>> and receiving the output. That means, either functionA or functionB mus=
t
>> defer calling accept-process-output (how does it know?), until the othe=
r
>> function has finished this part. This is hard to implement. And if we
>> would have such a mechanism, we wouldn't need dtach anymore. If
>> functionB (for example) detects, that functionA is speaking with the
>> remote, just defer calling tramp-send-command, until functionA is finis=
hed.
>>
>> This sounds rather like a job for threads and mutexes. An attempt to us=
e
>> threads in Tramp failed some years ago, 'tho.
>>
>> Best regards, Michael.
>
> Thank you, Michael.
>
> I'd only meant this as a way of avoiding 'deadlock' in the case of A
> waiting on B to proceed.
In which case, of course, neither would need to know that the other is
'waiting': both would call 'accept-process-output' straightaway and let
recursion and dtach handle it. (AISI)
>
> FTR, a better scheme than the above for that might be:
>
> - Start the process via dtach, with stdout > buffer.
> - 'tail' it in the background.
> - Use dtach -p to < stdin to the session.
>
> To temporarily switch to another process:
>
> - ^C
> - Clear the buffer.
> - Kill the 'tail' process.
> - Repeat the setup above for the new process.
>
> To switch back:
>
> - 'tail' buffer, starting with the whole of it, in the background.
> - Rerun the dtach -p.
>
> (This runs the risk of a 'race' of any input sent being stale because
> of
> having missed later output by 'tail's delay. But we're usually sure of
> what we send in this case, isn't it?)
>
Regards,
James
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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From: James Thomas <jimjoe@HIDDEN>
To: Michael Albinus <michael.albinus@HIDDEN>
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
In-Reply-To: <87zf9vqisl.fsf@HIDDEN> (Michael Albinus's message of "Mon, 13
Oct 2025 10:59:06 +0200")
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Content preview: Michael Albinus <> writes: > James Thomas <> writes: > > Hi
James, > >>> > > To detail (AISI and total guesswork), for the missing output
>>> > > between 'attachments': >>> > > >>> > > Right after detaching, attach
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Content preview: Michael Albinus <> writes: > James Thomas <> writes: > > Hi
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Michael Albinus <> writes:
> James Thomas <> writes:
>
> Hi James,
>
>>> > > To detail (AISI and total guesswork), for the missing output
>>> > > between 'attachments':
>>> > >
>>> > > Right after detaching, attach a second background dtach
>>> > > 'client' just to collect output, (and detach it) and cat its
>>> > > buffer file's contents prior to the main reattachment.
>>> > >
>>> > > If the delays above are problematic (race conditions?), do it
>>> > > beforehand at process start itself, and clear it ('bash -c ">
>>> > > buffer"'
>>> > > ?) right before the main detachment (in that case, perhaps use
>>> > > this
>>> > > only for these cases so that the buffer doesn't keep growing
>>> > > large).
>>> >=20
>>> > The problem in Tramp is not the "missing output". It's rather a
>>> > race
>>> > condition. Imagine, you have two funtions accessing the remote
>>> > process
>>> > inparallel. There are several shell commands needed to finish the
>>> > function. For example
>>> >=20
>>>=20
>>> AISI:
>>>=20
>>> > functionA: "cd /path/to/dir; do something"
>>> > functionB: "cd /somewhere/else; do something else"
>>> >=20
>>>=20
>>> functionA: "<send dtach char>; cd /path/to/dir; dtach <args> do
>>> something"
>>> (and ditto for B)
>>
>> Isolating a single nesting (using the 2nd approach), this is, more
>> accurately:
>>
>> functionA: "cd /path/to/dir; dtach <args> do something | tee <args>
>> buffer"
>> functionB: "<send dtach char C-\> > buffer; cd /somewhere/else; do
>> something else; cd /path/to/dir; cat buffer; dtach <reattach args>"
>>
>>>=20
>>> > If they disturb each other after the cd command, we would get
>>> > errors. I
>>> > don't see how dtach could solve this.
>> (Resending, with some more context, since my earlier message seems
>> not to have arrived at debbugs)
>> Some more considerations regarding any borderline race conditions:
>>
>> - Any priority for receiving output from dtach's master process, I
>> assume are, ceteris paribus, in the ordinal rank of the child client
>> processes.
>>
>> - To account for any maximal marginal delays above, the output of
>> the 'real' process could be intentionally delayed at specific
>> message separators (such as newlines) by piping it through something
>> by default.
>>
>> So my question is:
>>
>> Is all this totally ignorant of something?
>
> I haven't tested your dtach scenario (I guess it works remotely as
> described). The problem is still attribution of the process output in
> Tramp, whether it belongs to functionA or functionB.
>
> Remember, the Tramp control flow is (modulo error handling):
>
> function(A or B):
> - assemble the needed command for the remote shell
> - send it to the remote via tramp-send-command
> - call accept-process-output until a shell prompt is detected
> - collect the output from the output buffer and let function(A or B)
> handle it
>
> We have only one process available (Tramp's so called connection
> process), which is responsible for sending the command to the remote,
> and receiving the output. That means, either functionA or functionB must
> defer calling accept-process-output (how does it know?), until the other
> function has finished this part. This is hard to implement. And if we
> would have such a mechanism, we wouldn't need dtach anymore. If
> functionB (for example) detects, that functionA is speaking with the
> remote, just defer calling tramp-send-command, until functionA is finish=
ed.
>
> This sounds rather like a job for threads and mutexes. An attempt to use
> threads in Tramp failed some years ago, 'tho.
>
> Best regards, Michael.
Thank you, Michael.
I'd only meant this as a way of avoiding 'deadlock' in the case of A
waiting on B to proceed.
FTR, a better scheme than the above for that might be:
- Start the process via dtach, with stdout > buffer.
- 'tail' it in the background.
- Use dtach -p to < stdin to the session.
To temporarily switch to another process:
- ^C
- Clear the buffer.
- Kill the 'tail' process.
- Repeat the setup above for the new process.
To switch back:
- 'tail' buffer, starting with the whole of it, in the background.
- Rerun the dtach -p.
(This runs the risk of a 'race' of any input sent being stale because of
having missed later output by 'tail's delay. But we're usually sure of
what we send in this case, isn't it?)
Regards,
James
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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From: Michael Albinus <michael.albinus@HIDDEN>
To: James Thomas <jimjoe@HIDDEN>
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
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James Thomas <jimjoe@HIDDEN> writes:
Hi James,
>> > > To detail (AISI and total guesswork), for the missing output betwee=
n 'attachments':
>> > >
>> > > Right after detaching, attach a second background dtach 'client' ju=
st to collect output, (and detach it) and cat its buffer file's contents p=
rior to the main reattachment.
>> > >
>> > > If the delays above are problematic (race conditions?), do it
>> > > beforehand at process start itself, and clear it ('bash -c "> buffe=
r"'
>> > > ?) right before the main detachment (in that case, perhaps use this
>> > > only for these cases so that the buffer doesn't keep growing large)=
.
>> >=20
>> > The problem in Tramp is not the "missing output". It's rather a race
>> > condition. Imagine, you have two funtions accessing the remote proces=
s
>> > inparallel. There are several shell commands needed to finish the
>> > function. For example
>> >=20
>>=20
>> AISI:
>>=20
>> > functionA: "cd /path/to/dir; do something"
>> > functionB: "cd /somewhere/else; do something else"
>> >=20
>>=20
>> functionA: "<send dtach char>; cd /path/to/dir; dtach <args> do somethi=
ng"
>> (and ditto for B)
>
> Isolating a single nesting (using the 2nd approach), this is, more accur=
ately:
>
> functionA: "cd /path/to/dir; dtach <args> do something | tee <args> buff=
er"
> functionB: "<send dtach char C-\> > buffer; cd /somewhere/else; do somet=
hing else; cd /path/to/dir; cat buffer; dtach <reattach args>"
>
>>=20
>> > If they disturb each other after the cd command, we would get errors.=
I
>> > don't see how dtach could solve this.
> (Resending, with some more context, since my earlier message seems not t=
o have arrived at debbugs)
> Some more considerations regarding any borderline race conditions:
>
> - Any priority for receiving output from dtach's master process, I assum=
e are, ceteris paribus, in the ordinal rank of the child client processes=
.
>
> - To account for any maximal marginal delays above, the output of the 'r=
eal' process could be intentionally delayed at specific message separators=
(such as newlines) by piping it through something by default.
>
> So my question is:
>
> Is all this totally ignorant of something?
I haven't tested your dtach scenario (I guess it works remotely as
described). The problem is still attribution of the process output in
Tramp, whether it belongs to functionA or functionB.
Remember, the Tramp control flow is (modulo error handling):
function(A or B):
- assemble the needed command for the remote shell
- send it to the remote via tramp-send-command
- call accept-process-output until a shell prompt is detected
- collect the output from the output buffer and let function(A or B)
handle it
We have only one process available (Tramp's so called connection
process), which is responsible for sending the command to the remote,
and receiving the output. That means, either functionA or functionB must
defer calling accept-process-output (how does it know?), until the other
function has finished this part. This is hard to implement. And if we
would have such a mechanism, we wouldn't need dtach anymore. If
functionB (for example) detects, that functionA is speaking with the
remote, just defer calling tramp-send-command, until functionA is finished=
.
This sounds rather like a job for threads and mutexes. An attempt to use
threads in Tramp failed some years ago, 'tho.
Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
Full text available.
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Date: Mon, 13 Oct 2025 11:13:59 +0530
From: James Thomas <jimjoe@HIDDEN>
To: Michael Albinus <michael.albinus@HIDDEN>
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
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On October 11, 2025 9:07:39 AM GMT+05:30, James Thomas <> wrote:
> On October 10, 2025 1:56:37 PM GMT+05:30, Michael Albinus <> wrote:
> > James Thomas <> writes:
> >=20
> > >> Hi Michael,
> >=20
> > Hi James,
> > =20
> > >> Do you think the dtach program [1] could be used to do this rather =
painlessly?
> > >>=20
> > >> I mean: Run all processes through it; on reentry, detach from the c=
urrent one to launch the new one, and redisplay the prompt at the next wait=
=2E
> > >>=20
> > >> 1: https://dtach=2Esourceforge=2Enet
> > >
> > > To detail (AISI and total guesswork), for the missing output between=
'attachments':
> > >
> > > Right after detaching, attach a second background dtach 'client' jus=
t to collect output, (and detach it) and cat its buffer file's contents pri=
or to the main reattachment=2E
> > >
> > > If the delays above are problematic (race conditions?), do it
> > > beforehand at process start itself, and clear it ('bash -c "> buffer=
"'
> > > ?) right before the main detachment (in that case, perhaps use this
> > > only for these cases so that the buffer doesn't keep growing large)=
=2E
> >=20
> > The problem in Tramp is not the "missing output"=2E It's rather a race
> > condition=2E Imagine, you have two funtions accessing the remote proce=
ss
> > inparallel=2E There are several shell commands needed to finish the
> > function=2E For example
> >=20
>=20
> AISI:
>=20
> > functionA: "cd /path/to/dir; do something"
> > functionB: "cd /somewhere/else; do something else"
> >=20
>=20
> functionA: "<send dtach char>; cd /path/to/dir; dtach <args> do somethin=
g"
> (and ditto for B)
Isolating a single nesting (using the 2nd approach), this is, more accurat=
ely:
functionA: "cd /path/to/dir; dtach <args> do something | tee <args> buffer=
"
functionB: "<send dtach char C-\> > buffer; cd /somewhere/else; do somethi=
ng else; cd /path/to/dir; cat buffer; dtach <reattach args>"
>=20
> > If they disturb each other after the cd command, we would get errors=
=2E I
> > don't see how dtach could solve this=2E
(Resending, with some more context, since my earlier message seems not to =
have arrived at debbugs)
Some more considerations regarding any borderline race conditions:
- Any priority for receiving output from dtach's master process, I assume =
are, ceteris paribus, in the ordinal rank of the child client processes=2E
- To account for any maximal marginal delays above, the output of the 'rea=
l' process could be intentionally delayed at specific message separators (s=
uch as newlines) by piping it through something by default=2E
So my question is:
Is all this totally ignorant of something?
--
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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From: Michael Albinus <michael.albinus@HIDDEN>
To: James Thomas <jimjoe@HIDDEN>
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
In-Reply-To: <39F26289-35B3-4FB8-8DC5-5B4EC228DF73@HIDDEN>
References: <68310D70-1BAA-48F0-BB99-39E02A020BD1@HIDDEN>
<39F26289-35B3-4FB8-8DC5-5B4EC228DF73@HIDDEN>
Date: Fri, 10 Oct 2025 10:26:37 +0200
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James Thomas <jimjoe@HIDDEN> writes:
>> Hi Michael,
Hi James,
=20
>> Do you think the dtach program [1] could be used to do this rather pain=
lessly?
>>=20
>> I mean: Run all processes through it; on reentry, detach from the curre=
nt one to launch the new one, and redisplay the prompt at the next wait.
>>=20
>> 1: https://dtach.sourceforge.net
>
> To detail (AISI and total guesswork), for the missing output between 'at=
tachments':
>
> Right after detaching, attach a second background dtach 'client' just to=
collect output, (and detach it) and cat its buffer file's contents prior =
to the main reattachment.
>
> If the delays above are problematic (race conditions?), do it
> beforehand at process start itself, and clear it ('bash -c "> buffer"'
> ?) right before the main detachment (in that case, perhaps use this
> only for these cases so that the buffer doesn't keep growing large).
The problem in Tramp is not the "missing output". It's rather a race
condition. Imagine, you have two funtions accessing the remote process
inparallel. There are several shell commands needed to finish the
function. For example
functionA: "cd /path/to/dir; do something"
functionB: "cd /somewhere/else; do something else"
If they disturb each other after the cd command, we would get errors. I
don't see how dtach could solve this.
Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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Date: Thu, 09 Oct 2025 15:03:03 +0530
From: James Thomas <jimjoe@HIDDEN>
To: michael.albinus@HIDDEN
Subject: Re: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
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On October 8, 2025 3:45:15 AM GMT+05:30, James Thomas <> wrote:
> Hi Michael,
>=20
> Do you think the dtach program [1] could be used to do this rather painl=
essly?
>=20
> I mean: Run all processes through it; on reentry, detach from the curren=
t one to launch the new one, and redisplay the prompt at the next wait=2E
>=20
> 1: https://dtach=2Esourceforge=2Enet
To detail (AISI and total guesswork), for the missing output between 'atta=
chments':
Right after detaching, attach a second background dtach 'client' just to c=
ollect output, (and detach it) and cat its buffer file's contents prior to =
the main reattachment=2E
If the delays above are problematic (race conditions?), do it beforehand a=
t process start itself, and clear it ('bash -c "> buffer"' ?) right before =
the main detachment (in that case, perhaps use this only for these cases so=
that the buffer doesn't keep growing large)=2E
--
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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Date: Wed, 08 Oct 2025 03:45:15 +0530
From: James Thomas <jimjoe@HIDDEN>
To: michael.albinus@HIDDEN
Subject: bug#49954: bug#60534: 28.2; Forbidden reentrant call of Tramp
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Content preview: Hi Michael, Do you think the dtach program [1] could be used
to do this rather painlessly? I mean: Run all processes through it; on reentry,
detach from the current one to launch the new one, and redisplay the prompt
at the next wait.
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Content preview: Hi Michael, Do you think the dtach program [1] could be used
to do this rather painlessly? I mean: Run all processes through it; on reentry,
detach from the current one to launch the new one, and redisplay the prompt
at the next wait.
Content analysis details: (1.9 points, 10.0 required)
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manager
Hi Michael,
Do you think the dtach program [1] could be used to do this rather painles=
sly?
I mean: Run all processes through it; on reentry, detach from the current =
one to launch the new one, and redisplay the prompt at the next wait=2E
1: https://dtach=2Esourceforge=2Enet
Regards,
James
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
Full text available.Received: (at 60534) by debbugs.gnu.org; 22 Dec 2024 11:39:32 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Dec 22 06:39:32 2024 Received: from localhost ([127.0.0.1]:49181 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tPKJ1-00079g-Sm for submit <at> debbugs.gnu.org; Sun, 22 Dec 2024 06:39:32 -0500 Received: from mout.gmx.net ([212.227.17.21]:49349) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <jimjoe@HIDDEN>) id 1tPKIz-00079L-T8; Sun, 22 Dec 2024 06:39:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.net; s=s31663417; t=1734867561; x=1735472361; i=jimjoe@HIDDEN; bh=f32uRoRFEhYsooAK30nfwrLQPwFTfM47sYPpffwkzHs=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:Date:Message-ID: References:MIME-Version:Content-Type:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=LWgGX4qsBp/JyDy3rG5b+/52AzPtqKSTb+JcfbGp9mnxdDXlF812alKMvgjsPsno NmFnpC2ATYxkRJ/T3CHGZiAZddJmsc5Q0T7/s0UjoNmu1pCSbiloiqxJUxgFE/pn2 06jUAiz3ifsy2GI2L2V63HeFLIs4dZJyAPNVJWhgdXSQibxta+C6qploGISOywYrJ 7s50VPXqPcgV1iX5x5/pyADI2oHbnC95Y18IngZtcavxPJMLkg/VTByvwYTbphBX9 Wsb35uXTrzf95JxHh9vnAIYbI+ZSyllpOpjHMfzvADscBBsyh2QloKW4bw3SvvjDv GDrZURgbkMmIAm7TLg== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from user-Inspiron-3493 ([42.104.188.46]) by mail.gmx.net (mrgmx104 [212.227.17.174]) with ESMTPSA (Nemesis) id 1M1Ygt-1tQgwl2Eep-001BhI; Sun, 22 Dec 2024 12:39:21 +0100 From: James Thomas <jimjoe@HIDDEN> To: Michael Albinus <michael.albinus@HIDDEN> Subject: Re: bug#60534: 28.2; Forbidden reentrant call of Tramp In-Reply-To: <87o71an24v.fsf@HIDDEN> (Michael Albinus's message of "Tue, 17 Dec 2024 09:29:36 +0100") Date: Tue, 17 Dec 2024 18:41:53 +0530 Message-ID: <86bjxafo86.fsf@HIDDEN> References: <875ywf9ea7.fsf@HIDDEN> <871r72ssqi.fsf@HIDDEN> <874kby7wn5.fsf@HIDDEN> <875ywdquds.fsf@HIDDEN> <87pmtfjyw4.fsf@HIDDEN> <878s03s3t1.fsf@HIDDEN> <86frmnb6j9.fsf_-_@HIDDEN> <87o71an24v.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K1:Y4r9Fg4D2O4oK4UN28MZEVoB4sVRVQlRy+GCY+uUR3YfkV0al/O cGVHFdcp2Xqo1mReDAQ5ChWnF/etA/5N8fF5i9Iyz0RFcbFeG6AxdpZb3YSPrOI6SvIGvAX 5VIm0yDsnx40oh6mDubz0h0ug+oio5C2pEpt/vGivi/9liRIX69hQGqj3xIzWoLwSAfw/2p /1KDsALb/KKdmbYF+a7fA== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:CMqtcg3ggAE=;d2qT9dGc6oUCEtWh20Rz2dz3uHI afWTfvdrgLJp/APa3MNL2Yo2AXgaSNwldVN0dc1NixFpsyAplM1LPfEzhKGg6meIuoFKSB9H7 6vq4IBjMQgI5RZxa45lZshGxktVNQ5AS++XlCz3n3gUbUtdlNcRrzYp8qM0nqszMR75eQnD3o 2Px/R7DW56LrQdMwCobGUCC5/fRZenKhg9NoXR7gedvGJDKoDvRiD9bwGtXkRCEfCqlerhybI zqVt63V5NnVyRIB0elF3uH+RV5YOqVYTJbOw9bjke9FydwZ44KMp/TlUWI2d2qF6+3rVFIL5Y BLF8wjvzEjwlIJjFOByWLSfmTuOPn1l4f9b84fqLd98jZzEuPJwTvHNaW3+j42TSX+J/MhPiC FEgiLYqV9S9lVhUErDQp9DX6+iVE2RlClvdO6zUUSS/ibMuRIkNLY9yWzoo5KAmWLXaoyDHXy ByEOmnG25m3byu6qWSkQmehSnNUelkg2MOdTR6d8SGmRpKz8T9Ibe2Rh/tm1vT2mPQ0954/NN oeg+ZOjMgsjZwrQdzhpvj9mjsu7jvyv3jPWmR/MCWnK0LWeEdDXJmiZx4YKUwyTf5vn7Nm1wH ck8CTol/CJWYCPr7SXZVa+GSoZ31wUPdqlu6A+EmltaUR7M1uHMIYrBdHebRMOpm/VlQQEY2X 9dTeCn7DfRjGO9M0euFsk/VPr6FiUNRgq4C0rD9/Z9+AoU3mPCeOKKG/XoNfQYe5aFVJlVvmj gl+lqu8xNBmoQEtb41jNDmmYNas1+PkTtcfnIiN84lbxxZKQa6yRHlPGZITf/HWiBtbdqqp/b XuRalKxrtZbh9swrA4vzoT3kUbxeOSo7HNgk3RN5JWz4Ad7FG2HAQllOhlyCmKO2ctidgGkwG 3U7xmQgXAzVDWVppobJ0RBSbM28hf6dJ4ADYd8ln2rH/juQhzvcPUVBktDOia7E4dvVie5Ui+ U1nc1almEL6M5Ckxkk3dvYbEU+PsMtaQFKQhs41QsG+czKt1XseylD8gfW06JPNHM4/bQ2dCJ UesRS1wAo+h1cyVF0Pz5H5AraWe6s0G03995L4eHQcWenBGM13Rm5SGz9d09sjP3LLQIBlMI9 nkbUIVKJkEOxZ77SJA11DL0kISedRO X-Spam-Score: 1.4 (+) X-Spam-Report: Spam detection software, running on the system "debbugs.gnu.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Michael Albinus wrote: > Not so simple. > ... Content analysis details: (1.4 points, 10.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 RCVD_IN_VALIDITY_RPBL_BLOCKED RBL: ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. [212.227.17.21 listed in bl.score.senderscore.com] 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [212.227.17.21 listed in wl.mailspike.net] 0.0 RCVD_IN_VALIDITY_CERTIFIED_BLOCKED RBL: ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. [212.227.17.21 listed in sa-trusted.bondedsender.org] -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [212.227.17.21 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (jimjoe[at]gmx.net) 2.1 DATE_IN_PAST_96_XX Date: is 96 hours or more before Received: date 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-Debbugs-Envelope-To: 60534 Cc: Dima Kogan <dima@HIDDEN>, 49954 <at> debbugs.gnu.org, 60534 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: 0.4 (/) Michael Albinus wrote: > Not so simple. > ... > And it isn't clear to me how to keep two connections in sync, if (for > example) the environment changes in one of the connections. Be it an > environment variable, the current directory, the availability of a > temp file, you name it. And here was I thinking that Tramp was mostly remote-state-less beyond the handshake... > There is a serious overhead when opening a new connection, due to the > handshaking actions. OK; I misremembered for a moment that it was beyond any ControlPersist. > But yes, nobody has tried it yet. My preference is to use threads, so > that one command in a process filter could wait until another command > in the main thread has finished, as example. But the crucial point is, > that you must activate threads in the beginning of a connection. When > you detect, that there is a forbidded reentrant call, it is too late > to activate threads. Ah, crucial; but not a blocker, I suppose. Thank you for the effort in explaining, Michael. Regards, James
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
Full text available.Received: (at 60534) by debbugs.gnu.org; 17 Dec 2024 22:10:21 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Dec 17 17:10:21 2024 Received: from localhost ([127.0.0.1]:60628 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tNfli-0000Zg-AN for submit <at> debbugs.gnu.org; Tue, 17 Dec 2024 17:10:21 -0500 Received: from mout.gmx.net ([212.227.17.20]:54619) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <jimjoe@HIDDEN>) id 1tNflW-0000Te-Bo; Tue, 17 Dec 2024 17:10:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.net; s=s31663417; t=1734473397; x=1735078197; i=jimjoe@HIDDEN; bh=f32uRoRFEhYsooAK30nfwrLQPwFTfM47sYPpffwkzHs=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:Date:Message-ID: References:MIME-Version:Content-Type:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=aJUcpqbW1t3Rpn/3shAQ3j13/7kz8UxxmzWmoBxELp3jXzrmEEfCNzr3Dug3hie/ bGWsEvANbPAPww+7whWkkshuP+gwLYpRgu78Gqq+fFnWhJexOMjzHk994//P8fqTa BqCbXKr8DV7AYiENTsLP1/2JlICKiwMe5iosVrKPVn5dFZ183EZ/C9c7HQt9d+og8 rnXUE3vnzEZ8LFweT5EvI7Hv6aKv82K1J9ES+TcgT9vjFOWbzn08xcxu9DJ9cjfqI jBkao0BSiAhe85fHb+bP/JhdM+FwiAoj3wkthgZGRBV8ICTcZs9emADFWTJSIa00W e9AUat3LOm1o0R6xVQ== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from user-Inspiron-3493 ([42.108.26.156]) by mail.gmx.net (mrgmx104 [212.227.17.174]) with ESMTPSA (Nemesis) id 1MZCfJ-1t1HPe402L-00Q12r; Tue, 17 Dec 2024 23:09:56 +0100 From: James Thomas <jimjoe@HIDDEN> To: Michael Albinus <michael.albinus@HIDDEN> Subject: Re: bug#60534: 28.2; Forbidden reentrant call of Tramp In-Reply-To: <87o71an24v.fsf@HIDDEN> (Michael Albinus's message of "Tue, 17 Dec 2024 09:29:36 +0100") Date: Tue, 17 Dec 2024 18:41:53 +0530 Message-ID: <86bjxafo86.fsf@HIDDEN> References: <875ywf9ea7.fsf@HIDDEN> <871r72ssqi.fsf@HIDDEN> <874kby7wn5.fsf@HIDDEN> <875ywdquds.fsf@HIDDEN> <87pmtfjyw4.fsf@HIDDEN> <878s03s3t1.fsf@HIDDEN> <86frmnb6j9.fsf_-_@HIDDEN> <87o71an24v.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K1:8eD8RV08f4sR7L+BXf7ugejCyWuPxmqx3jDq1NOe7M91SCk7ORY 27ii+WJjQ0aInk8BOMBAfltTSXlW7P5cdaixyPGco6j+3ugT4yUpczCYmzF1gfHfJSr69gH /kNckZodAXPNu5RR+8YaW/621bfAtRT/EWIaybl+mLO588Os9c49H4JZAdRUCy2cjcXUaeu juaVaRfIOecAlV42NtTqQ== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:jGnsgqQERdY=;gQfh9wVURpqDrWxTOcWqI++X+2E 2TllaoAHiPInxXujW7i+Ldtm9JwJjoG4ypbEUamkw7LaIRSgLvnO16Vl9+c0h2/nxagCjCrIo VfG22XhPwxuNjTWYsIbpDIkqpbEX+jaiVf8EtMsebxuQ0k2760eE5darpoVvSSxFza3Tid11N QU+854MqcowH8rj9ecSRmXyvCyH67Z/udr9v5c/OdZ5IVyooVtpazpoSwqialZh++IpGe74B7 6DbY7JORe/zuBUfjku28LkDLRO9ErU9idwwdZbCkNFvPVPDFZLt+u2l4YL5IX4nPOCgxMFkw8 qBLAdSBhs6S4VnBo9YHviKx8yfzRF5ILI6lPTQAPBgzpNSO/87cqF6KqBLAv86Jt5GuiZzOwa OOS920ixHodw7FT/tuLZhuMZi8ZxThi/eOjGtwAP792FVJSzGmwPd14XRt06dILaupmsALQyF FpyfbmlTi7LNurwDMMjMHGOxh6dV8jJ4zopIo4yaEP6awaEIDubpbFdcjig6VF9U0hXSG9GsB /uvQWTU4JrDiWkr9qQHnoQpssUPlr8tjfZGxVrPX1aFka9waPY/b4XR74Nd1dM5LYWa9eeJ5B T+EqoaXYZXryxRXuq/9yE0kL8InTVTGcKPMhkiRBBetewUj0J6aiDSncZwrBXWbqVH1eguecS m8MHXNn/mTS5lxKLzVowFdciucahP50VXb4VILdXQqLeYiGF2oWEIQjN6qt26fB2dYydmnYSw jCzbbtsGg1lLOGLKgRiOcFkMDmJETrKDvj0y2aUbkakbGAiEEqGU5vgAyj9bVU2obR4fpa7o+ DElVLLa6I/znwSIbon/Lv5lQ8HY8ny4UVBMG6we+tzuQzh/2Eqd8Bu/Sry4AxtrwKzfyB0tS5 fJlPow50YeM+v5/ctbrATbBpIXjyvz5A0TcE52R3aG2Dir3MVQxucPn4dcPQqUhAyp4PLvJ0P Hauk8+q/H8amxCwXAMq8AR5Hhrn7PszdvNPNDKtgPS3zg/Ps0xHHoGHopGbKjk0U+0Y3ZyV6a I8lkATl4/ACszj0ewD1swGgzm8duA5VBkLHonsCtiL+C2v2e2v31o/+Zutn8KCRQ8r8UBIAXY SJA026yrzMU2wxQsNPsqK4gUx8zDBV X-Spam-Score: 0.4 (/) X-Debbugs-Envelope-To: 60534 Cc: Dima Kogan <dima@HIDDEN>, 49954 <at> debbugs.gnu.org, 60534 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -0.6 (/) Michael Albinus wrote: > Not so simple. > ... > And it isn't clear to me how to keep two connections in sync, if (for > example) the environment changes in one of the connections. Be it an > environment variable, the current directory, the availability of a > temp file, you name it. And here was I thinking that Tramp was mostly remote-state-less beyond the handshake... > There is a serious overhead when opening a new connection, due to the > handshaking actions. OK; I misremembered for a moment that it was beyond any ControlPersist. > But yes, nobody has tried it yet. My preference is to use threads, so > that one command in a process filter could wait until another command > in the main thread has finished, as example. But the crucial point is, > that you must activate threads in the beginning of a connection. When > you detect, that there is a forbidded reentrant call, it is too late > to activate threads. Ah, crucial; but not a blocker, I suppose. Thank you for the effort in explaining, Michael. Regards, James
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
Full text available.Received: (at 60534) by debbugs.gnu.org; 17 Dec 2024 08:29:51 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Dec 17 03:29:51 2024 Received: from localhost ([127.0.0.1]:57441 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tNSxi-0001sO-Jv for submit <at> debbugs.gnu.org; Tue, 17 Dec 2024 03:29:50 -0500 Received: from mout.gmx.net ([212.227.17.20]:41881) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <michael.albinus@HIDDEN>) id 1tNSxg-0001s5-Kv; Tue, 17 Dec 2024 03:29:49 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.de; s=s31663417; t=1734424179; x=1735028979; i=michael.albinus@HIDDEN; bh=42LKFyYcjMbt8YkMaT9SqA9uiz8+IYUhtdbtMMWZ7U0=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date: Message-ID:MIME-Version:Content-Type:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=U14ylHG5beExgDy9++U/cLpQslO7v7mmQad4zzYcBlgCAxZ48ZLqqohGKzcq2KNO n2O7LojbOOoZcvbI6udj4ozwsNpmdb5Xk0BXZ35iIT9uvClDRPJvyXh/67HC7JZKZ ktFqdIYq6Yyo/BvJb8NEDn7WQc7sEAhVhrjWP1ffY/3gaAeUDMBWLrjyU7Xdve+11 L3VNmDXvsccjLal23sHHckGl9BaHBRdAorcLWSYz9yIYKK85te82Twlx1INQA0M7s qIZGlvMLePOXAa4d/JTrNbI6tcHmc+v91voukC5+MRZD8BYUBzyp6J2zWDEkQfzEV xXU7elqgq0uE4wykCA== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from gandalf.gmx.de ([185.89.38.155]) by mail.gmx.net (mrgmx104 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MryXN-1ttAjW2gCr-00gQ9J; Tue, 17 Dec 2024 09:29:39 +0100 From: Michael Albinus <michael.albinus@HIDDEN> To: James Thomas <jimjoe@HIDDEN> Subject: Re: bug#60534: 28.2; Forbidden reentrant call of Tramp In-Reply-To: <86frmnb6j9.fsf_-_@HIDDEN> (James Thomas's message of "Tue, 17 Dec 2024 04:05:22 +0530") References: <875ywf9ea7.fsf@HIDDEN> <871r72ssqi.fsf@HIDDEN> <874kby7wn5.fsf@HIDDEN> <875ywdquds.fsf@HIDDEN> <87pmtfjyw4.fsf@HIDDEN> <878s03s3t1.fsf@HIDDEN> <86frmnb6j9.fsf_-_@HIDDEN> Date: Tue, 17 Dec 2024 09:29:36 +0100 Message-ID: <87o71an24v.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K1:wpWQy8Ygw+oHL3nZChcAINKTifIQRW/m8kd4/6Uv6cAEiWyfJJI z3OWMqwHO2fqoC7gv1IP1LPsqYRGBHjUiAu/8wTgYpUWQMTuGRQh+3jf3nB2UXXwU3nsv+L AQiSSm3S40DDrp7BkSbBq1/CJJVYGcvDeQkew1KPGMrYFp2eLsaLW0RTSmd3djL4kW/OJ0V DUKTha5/6mVcIbHNZY3cw== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:eUn4/37X2R0=;mt/ahv4JCXImPz6xgK4erBgwbBc VMAmOihf+Am9nVNY4NyCK5+DCq+wuG+UnrYU+hX4GL2/Z2KNmxZ9oo+kagVgBzWBxFDVJ6VKV t44ZkYGUveSBDYfRvptBxv/JIlBx0OxxEJPANoyvZr2TObZrVLIhcz4mEm01a0pciM81Onhn4 TDD/EzxfMa40i6EMAFkWY35abuF8evOqxdoWH0Xks/ehnmP5RSIPD+SEHr4qsxQdXgwj8Cc5C N2JgGh7Y5OT2yCmSQasD4FXqR40K5Pyk9IpaOC/5d32ahgVH/yJt5219omVX5f0PUs7Rd1Ul/ ETmWh8Lgw0Ad+E0I2XhCLYb4XFOpWtz9jvdXXvwc/SIUQDNNTUfNrfqdbAQFVqhpHRmKBmQ6b fzntdwQFXJevtayEUGigXiSuo9wGK7+Nqr6D19gVd2hzhZAKsw28U8AhfP76N87mfY+xFGLL2 N9HY7QV+zQgOhsuhw2MIWmFp0UYpxlHqH5yDXyBwrHzXz9cDOeoG1dLgDfjR5e/R2Tc+DrS/h Y8CEgvqGXPg6jX17OXL+cYGx8us23JyK5czQ12vQDZ6wNTck8juE9QDC9aNUW166Z+yU/GP+y BFogTf2+bYsmIiUF1cZJjU9D+dR2GcgyzrzgjOSDHQpJ/AuhGGgosijrh8v3ztebNBMPbbADp Do5h4GFZ8u2j23X92C4SW1f1hDqEHSHwnMINKvpxtzo1yGfBvfV1GLWe0pOK6HmfSwttTaKq2 ++C039cJ8uLyWVKxb5i4cCCUZ1GaufM+A1OlMWP5XbIghCpH2FxlqZ0c7sefjoFWKYtHSspH/ nnzrQzjygHSxqjozrADHiWJ1qA3jNjeon/tzoU6n5sATEQAXqHZeVzp/7+5iouXB4Xd3IiGcd 2HWreGphNsWN1p8NGYsN/iolLuNeooFRwGTIa9+YHGMl/zuJREmdVX2UkA0hyA5MU/Yd0DtQD EQZ4WiNviidhksN3ynx6KKEQKYwLNx7bCYA38OXGeTciDt5EWIXkZ/2PaJq0eQc+SfRMQXWd1 U1unaWXB1kjJSF/yCtF6q/QQNm6mNw7MzcMXr/Jc2tHlW3t/JtsPh+Q279HR1FBVSRi2YVFlI dOCSFws1L17+KeHDeb1KiDt3V+n7PG X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 60534 Cc: Dima Kogan <dima@HIDDEN>, 49954 <at> debbugs.gnu.org, 60534 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) James Thomas <jimjoe@HIDDEN> writes: Hi James, >> Not so easy to solve. Ideally, remote file name functions initiated in >> process filters, process sentinels, timers and alike shall wait, until >> the currently executed remote command has finished. Don't know how to >> achieve this. > > (This may be an ignorant question, but) if that's so, is it possible to > open a separate connection (perhaps with a ControlPath suffix, and > ControlPersist-ed) in the place of the "Forbidden reentrant call"? Not so simple. There is a serious overhead when opening a new connection, due to the handshaking actions. And it isn't clear to me how to keep two connections in sync, if (for example) the environment changes in one of the connections. Be it an environment variable, the current directory, the availability of a temp file, you name it. But yes, nobody has tried it yet. My preference is to use threads, so that one command in a process filter could wait until another command in the main thread has finished, as example. But the crucial point is, that you must activate threads in the beginning of a connection. When you detect, that there is a forbidded reentrant call, it is too late to activate threads. > Regards, > James Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
Full text available.Received: (at 60534) by debbugs.gnu.org; 16 Dec 2024 22:35:51 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Dec 16 17:35:51 2024 Received: from localhost ([127.0.0.1]:56627 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tNJgt-0006IL-7m for submit <at> debbugs.gnu.org; Mon, 16 Dec 2024 17:35:51 -0500 Received: from mout.gmx.net ([212.227.17.20]:35761) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <jimjoe@HIDDEN>) id 1tNJgq-0006Hy-C5; Mon, 16 Dec 2024 17:35:49 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.net; s=s31663417; t=1734388539; x=1734993339; i=jimjoe@HIDDEN; bh=RDqboM+e8/ki8R7iyaiNbAHB26N6maNtfySrEUvvQCQ=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date: Message-ID:MIME-Version:Content-Type:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=mN7rsc1yTpG2XmXnnFo7052QJ1A0fvWReYwSBZ6fvYVYjAF+s5xHNgFOAg7sCjzc PzTipmEz85ilGY+oZOJBj+06Ct1sbSY3IV3+RnSUkxgj3QIQB6t4WrQQuOLdJmoWP f3i+PCt8I+N1qehrd2+jsN46Q0xx6bJLIvdROAnGFvV5AH+QTKz7HmRH7yv5oT07+ mg99lqFtB78DktO0p2u325kfXOL2Za0+NyHLEPvX5gGGNb11XZlYGRaZt9EdrnRq6 D+Tz/Px4s7Hmdnne27FdEFa6IA2H5yK6Kd+0oIJbAiU+9L4qGz4RwX8G7ACJaAZUA XlYn5jRJAPqOGmnNwg== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from user-Inspiron-3493 ([42.104.189.162]) by mail.gmx.net (mrgmx105 [212.227.17.174]) with ESMTPSA (Nemesis) id 1M89Gt-1tSYTh1fYx-0065vX; Mon, 16 Dec 2024 23:35:39 +0100 From: James Thomas <jimjoe@HIDDEN> To: Michael Albinus <michael.albinus@HIDDEN> Subject: Re: bug#60534: 28.2; Forbidden reentrant call of Tramp In-Reply-To: <878s03s3t1.fsf@HIDDEN> (Michael Albinus's message of "Sat, 11 Sep 2021 14:19:06 +0200") References: <875ywf9ea7.fsf@HIDDEN> <871r72ssqi.fsf@HIDDEN> <874kby7wn5.fsf@HIDDEN> <875ywdquds.fsf@HIDDEN> <87pmtfjyw4.fsf@HIDDEN> <878s03s3t1.fsf@HIDDEN> Date: Tue, 17 Dec 2024 04:05:22 +0530 Message-ID: <86frmnb6j9.fsf_-_@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K1:+iMeaQkCcHLvLS4KqCi6lc5va29eo30Iz9g8Qsg0BeVyiv8OGQZ 9bV7WdO0sEgeuBYE5FdHUA15phM/EpI1EVwx0XMoDdYtJTFA/DgU0AtoZ96wPH9kf3Wnodz 93Lp/w+rvhXfZDQ9ABEun9vWvaIb/zj6rsEaOchOqu+Krlgo33p8bByEyOk730xoJXx2i5j QOJTCwHX0ixrtLNNB/c/A== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:DE0Q6QtDi54=;IB9Gpb1THKOt899mrUQwKPv6YLX Es0oa4WAYjZNjEMOXUcUtUF3nkyvAGuY1w0zSTNFrCurYHpGXGWJclobEM7mrer6oQOSvK2bj t4ksxRWbsp088smF421LgAaKDMW77szWUfIbFNjx2isWpEH3zxwuj7bSx+5n/FKSKNq/HTCkA GvMMNopyipsKoS/+8GIi4J19ec+/jhtJAHR9OzR9w2vc4UNks8auvwcvXfeOq44oz/6w9KNMj vQddvBelB/iQpW5K8Kp7mZpCTlXx1VM8FcaewAhdqd9I4XXHb9tNR79UYcBslQh6uc+CoB7wJ 2OMSPsqk1nakyxPL4k0qrLmHU4ZGYpvEauTl7ysBpExqkDBBu/1HeCRJ3bEQDky37EArzx7Ha DuyPClzhixKtiQB44lVFJ3aceqPi56y4WoJVXRii1CS0uiQYoTdYFb/tJRXJavVSjrWwEoNKu kSGbwv/NOc6+0zCAmZkhV3o6Y0XKvQoZWb6bjpEBCc064oEXyzHmg8w0yocBLqMWhcQDYBeDC 8ovlJGKKdQd2BicxFLPhZQr4wbMsdaOMhfOIwVZSw9CFqVX5GYG58Vyq4eO59DSNTe0VMtYYP SOKdo65zi/FzL2yRW7q4dXYbvj0XvTi74NsPsjO+DX0VQ+ZGxB5BSAXFvyPavV1enskkOxl0G YBBpoNiF46EU0vW7Br3zAlRBfWBdh1Gukbz2XnWIVeslG00zfrv6Ut8LRJHi6ZVDlqPLVPu+K IFB0ZuZ0FHUbtZWw+l1KwpWbBAqMvFxsAsUU2nH0MfTyZHzUEac64ifoDrVJj4A0BFpKAtY0x 9yxv2mezZ0JqRyctcLqstENG3okbJFYPrhovGD0gnEqU6PFDywAbSvR2ebi2vD6M6wn9BEkTE 0tyCo5kHlmGOAXl0TgY6CZsZoVP9c1da/oDCZTVnrohfnVFrPz+jCKxg1ZKm63IEQ+i9EIIL/ lCaiMs0HoGsh1mc5JZnyZv7lr3YsHjNhg+hVrGVpdcW8SOJV2WLGLOHyxp4iQGLUd0U0uo9bU Cg5dhMZ1zoV7S7hMq8GNAv3Y7WM/r8Xl5M/0EzlstX2D3F7BIYZ/IA3WuNR2Z5eSD69veQ75G kRnWE8N1hxno2V7sgV1I2Cd7WxyrWe X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 60534 Cc: Dima Kogan <dima@HIDDEN>, 49954 <at> debbugs.gnu.org, 60534 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) Michael Albinus wrote: > In order to understand the problem, let's assume the following scenario: > > - You have connected to a remote host, say "/ssh:host:". Tramp uses > internally the process *tramp/ssh host* for communicating with that > process. > > - You have also started another asynchronous process to that remote > host. > > - Now, while normal use of Emacs, the function (file-attributes > "/ssh:host:/path/to/file") is called. Tramp sends a command to the > process *tramp/ssh host*, like "stat /path/to/file". > > - While Tramp waits for the answer of the "stat ..." command, your other > process has finished. It might have a process sentinel, which is > called exactly at this time, because Tramp is in a loop > (accept-process-output ...). > > - This process filter might trigger another file operation, like > (delete-file "/ssh:host:/tmp/tmpfile"). This would require to send > another command to the *tramp/ssh host* process like "rm -f /tmp/tmpfile". > > - Since the first command, "stat ...", hasn't been finished, this would > result in inconsistencies. Tramp detects this situation, and raises > the "Forbidden reentrant call of Tramp" error. > > Not so easy to solve. Ideally, remote file name functions initiated in > process filters, process sentinels, timers and alike shall wait, until > the currently executed remote command has finished. Don't know how to > achieve this. (This may be an ignorant question, but) if that's so, is it possible to open a separate connection (perhaps with a ControlPath suffix, and ControlPersist-ed) in the place of the "Forbidden reentrant call"? Regards, James
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
Full text available.Michael Albinus <michael.albinus@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Received: (at 60534) by debbugs.gnu.org; 17 Feb 2023 09:42:27 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Feb 17 04:42:27 2023 Received: from localhost ([127.0.0.1]:38509 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1pSxG7-0000Gg-KP for submit <at> debbugs.gnu.org; Fri, 17 Feb 2023 04:42:27 -0500 Received: from mout.gmx.net ([212.227.17.21]:43287) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <michael.albinus@HIDDEN>) id 1pSxG5-0000GS-Ut for 60534 <at> debbugs.gnu.org; Fri, 17 Feb 2023 04:42:26 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.de; s=s31663417; t=1676626939; i=michael.albinus@HIDDEN; bh=s2RpEkS8ZvKFPGyBFJ5SSD5/GFhL8BBOewoi7jZmCQI=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date; b=cJ0CsnW8EKepWBIblEIh2/Y0OvIXBBWjnyJ9xsiQiot+qDIoPo5J9UUEq3qqndYPl gFZvNmBfR976LL7nq9ZBfT9j4J97Mri9EhWj6SGK+Ma4tXbov0G9us9rhCTe971a6V 0MfNUthdahHvOoJan1Sg1ecX+KLYXeEBQ77b9Xve5RVIFkcfmQQsUTxh8Jzo6s8jue UWCh3wLlgp8FKnuKD+QY8/UEOAIkLbc+/fU/BE2lQ7algIDaHzQ9B6QnBDNBDvtqAC Pd8P8lwU3ZnCNw8pH21AYlbtPM2HKe6HrAKOvqh9x4tnGHxbSHCqfbtVMq3X48E6Ab h3iG2OzECWk4Q== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from gandalf.gmx.de ([185.89.39.22]) by mail.gmx.net (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MNbkp-1pCfQ00BTf-00P3cv; Fri, 17 Feb 2023 10:42:19 +0100 From: Michael Albinus <michael.albinus@HIDDEN> To: Georgi Danov <georgi.danov@HIDDEN> Subject: Re: bug#60534: 28.2; Forbidden reentrant call of Tramp In-Reply-To: <AAD7DAAA-B9B6-414F-A3ED-D8004B80E22B@HIDDEN> (Georgi Danov's message of "Tue, 3 Jan 2023 21:52:36 +0100") References: <AAD7DAAA-B9B6-414F-A3ED-D8004B80E22B@HIDDEN> Date: Fri, 17 Feb 2023 10:42:17 +0100 Message-ID: <87zg9c7hmu.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K1:yAp2AGs4grlBqqsJ2nTkRcRhupPMBycm408B+MzD1fgNP4Rpv3O UKBWd+UTgS3nrT1gCurC+qW9wVDvDHxt6q6WUWiNuWyUzHM39+KLcO04IHII1QkKuiv54dP M5FqRsevitbXHrOkqc7vNzX/+DhhizkG77u+Eyy6SA9w077122eX5oRK31E2K7zA2zg6HHd jugqPEYaO0aqXmZaiR3hA== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:FH8DGmv4Sfk=;YuSglu7PPj0FaKgl7XLtKkhfPBd dZ34AS0DH3JGPbXSMCup7lOxK73cPvab+x82DjhZ/60xE77NwSHX9IXy4wRBBdU6PatFtpUbd YJwbuppz5QOJxQ8ddseLnCXylMupcV6MB1yCzBMGY5Jla7rrt3yx0b+6JWXniQzMiyehrfkRc lScBEkE7+x8mh49bHefZX8uiGENXZEPuuRQG33ch8++vD4cVmGZT+W/SKL9K5NJopHLgUmIIQ IX9M5ecKGsEW6Ohvf0jRmHuTH6L9BlatFtLnICUNkzeY6J4/5rNcupebnGiGgUdYf4/3VpSdg NkVQFBhOPUQxd5JqtpSj7C18boOwQfKTEhfKq/6Qpts5QCPkT519csA1VUCdM1Izr5U1lkXus h6jRX+FRDpoZUpo4Qga3ZUHFtzligY4akO0cAX5kyGK49a7Oh++qll83FjXMcqNhWDZla5Wbz qSIP6f6DcozMzEed1jHEDx8pdm3Cq9DUxJSEEqdsREGayAXcg/nD1WYa4D93yUS13BxLpAvDi igG5tymBUE7JuVd8cQaQOfTbCGxVdQ4FDulnt2daWrZavc2T9uCFREwQc78rCcuA59+dEqLs0 D/RlxGhHJMiZsZi+J1IG+JOyf+MIZdBWA6/2qLrBwVKwQ7HA1xQK1mbqBz5UJz57C55fB5RnK eRR5GxtnL9kiZBwW0NmWx/scn4hgIsMvibMYNrNJxzlHhIIFFSiJNBkl/r2CygNIN/HUsqFm3 dCpleu+F+TL86N9hW0QP1sOMhZrELxeSAu5HLU/mKlpGvrYO7O0L/jZde7WcytF2DOtUrKJhD xkmpKHuhDCofTBfDOTKo1uhg4CXhXhqIYIO3urnDTzQNd+Gu0axBhajqSDwWT17zzp6fQsaGD qZ9hTU9SqGe/hOu2hxRNYa2QNjR6ggxP7GtMgrt3lhfzlv5AxOxOLm2opZRoRKvytVZlyMydl SbuiWQ== X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 60534 Cc: 60534 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) Georgi Danov <georgi.danov@HIDDEN> writes: Hi Georgi, > As discussed in github issue > https://github.com/joaotavora/eglot/issues/859# eglot over tramp throws > "reentrant call" error. This is sympthom of underlying design issue - > aux libraries use files without being aware of the tramp conection, the > connection itself has no concurrency control, pooling or other > multi-user features and without that guard error different tramp clients > corrupt each other's communication with the language server. Yes. This is a long standing problem in Tramp I have no solution yet. Likely we need threading in Tramp for this, but this causes other problems. For the time being I merge this with bug#49954, which points to the same problem (although with different symptoms). Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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[77.117.176.238]) by smtp.gmail.com with ESMTPSA id s8-20020a170906354800b007ad2da5668csm14940312eja.112.2023.01.04.01.33.59 for <60534 <at> debbugs.gnu.org> (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 04 Jan 2023 01:33:59 -0800 (PST) From: Georgi Danov <georgi.danov@HIDDEN> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3731.300.101.1.3\)) Subject: Re: bug#60534: Acknowledgement (28.2; Forbidden reentrant call of Tramp) Date: Wed, 4 Jan 2023 10:33:47 +0100 References: <AAD7DAAA-B9B6-414F-A3ED-D8004B80E22B@HIDDEN> <handler.60534.B.167279020325447.ack <at> debbugs.gnu.org> To: 60534 <at> debbugs.gnu.org In-Reply-To: <handler.60534.B.167279020325447.ack <at> debbugs.gnu.org> Message-Id: <1998C4D1-AA30-4DF5-AB4B-95F82A10C4A3@HIDDEN> X-Mailer: Apple Mail (2.3731.300.101.1.3) X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 60534 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) additional context: with the docker tramp the problem is reproduced much = easier than with ssh tramp. > On 04.01.2023, at 00:57, GNU bug Tracking System = <help-debbugs@HIDDEN> wrote: >=20 > Thank you for filing a new bug report with debbugs.gnu.org. >=20 > This is an automatically generated reply to let you know your message > has been received. >=20 > Your message is being forwarded to the package maintainers and other > interested parties for their attention; they will reply in due course. >=20 > Your message has been sent to the package maintainer(s): > bug-gnu-emacs@HIDDEN >=20 > If you wish to submit further information on this problem, please > send it to 60534 <at> debbugs.gnu.org. >=20 > Please do not send mail to help-debbugs@HIDDEN unless you wish > to report a problem with the Bug-tracking system. >=20 > --=20 > 60534: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D60534 > GNU Bug Tracking System > Contact help-debbugs@HIDDEN with problems
bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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[77.117.202.17]) by smtp.gmail.com with ESMTPSA id x7-20020a05600c188700b003d9aa76dc6asm15975730wmp.0.2023.01.03.12.52.49 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 03 Jan 2023 12:52:50 -0800 (PST) From: Georgi Danov <georgi.danov@HIDDEN> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3731.300.101.1.3\)) Subject: 28.2; Forbidden reentrant call of Tramp Message-Id: <AAD7DAAA-B9B6-414F-A3ED-D8004B80E22B@HIDDEN> Date: Tue, 3 Jan 2023 21:52:36 +0100 To: bug-gnu-emacs@HIDDEN X-Mailer: Apple Mail (2.3731.300.101.1.3) Received-SPF: pass client-ip=2a00:1450:4864:20::32c; envelope-from=georgi.danov@HIDDEN; helo=mail-wm1-x32c.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.3 (-) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Tue, 03 Jan 2023 18:56:39 -0500 Cc: michael.albinus@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -2.3 (--) As discussed in github issue https://github.com/joaotavora/eglot/issues/859# eglot over tramp throws "reentrant call" error. This is sympthom of underlying design issue - aux libraries use files without being aware of the tramp conection, the connection itself has no concurrency control, pooling or other multi-user features and without that guard error different tramp = clients corrupt each other's communication with the language server. The problem is reproducible by using company mode, probably the language is not important. In my case it's typescript. Takes 15-30 seconds of editing and autocomplete to trigger it. The main congestions seems to happen in file-truename() -- after displaying candidate company mode goes on to do refresh in the = background and calls file-truename repeatedly while eglot (or someone else) is = occupying the tramp connection. Point is -- the same tramp connection is used by eglot and any other minor mode that queries file name or state, but they have no means to share or coordinate this use other than the exception above. Tramp used to throw more insignificant error in the past and tolerate the behavior (which corrupts the data exchanged between eglot and the lsp) and now throws this error. See `with-tramp-locked-connection` macro.=20 I got this problem with other minor modes too, but did not capture the stack as I lowered the error prio via (add-to-list 'debug-ignored-errors 'remote-file-error). Reading the code would've suggested corruption won't happen but still garbage was let in the stdio pipe and eglot lost = track of the buffer state. -------------------------- In GNU Emacs 28.2 (build 1, x86_64-apple-darwin22.1.0, Carbon Version = 169 AppKit 2299) of 2022-11-24 built on GDMBP.local Windowing system distributor 'Apple Inc.', version 13.1.0 System Description: macOS 13.1 Configured using: 'configure --enable-locallisppath=3D/usr/local/share/emacs/site-lisp = --infodir=3D/usr/local/Cellar/emacs-mac/emacs-28.2-mac-9.1/share/info/emac= s --prefix=3D/usr/local/Cellar/emacs-mac/emacs-28.2-mac-9.1 --with-mac --enable-mac-app=3D/usr/local/Cellar/emacs-mac/emacs-28.2-mac-9.1 --with-gnutls --with-modules' Configured features: ACL GMP GNUTLS JSON LIBXML2 MODULES NOTIFY KQUEUE PDUMPER THREADS TOOLKIT_SCROLL_BARS XIM ZLIB Important settings: value of $LANG: en_US.UTF-8 locale-coding-system: utf-8-unix Major mode: TSX Minor modes in effect: rainbow-delimiters-mode: t electric-pair-mode: t guru-mode: t subword-mode: t eglot--managed-mode: t flymake-mode: t popper-echo-mode: t popper-mode: t global-git-commit-mode: t magit-auto-revert-mode: t joro-mode: t doom-modeline-mode: t minions-mode: t override-global-mode: t global-flycheck-mode: t flycheck-mode: t global-hl-todo-mode: t hl-todo-mode: t which-function-mode: t global-company-mode: t company-mode: t helm-mode: t helm-minibuffer-history-mode: t helm-descbinds-mode: t helm--remap-mouse-mode: t async-bytecomp-package-mode: t ivy-mode: t editorconfig-mode: t winner-mode: t global-undo-tree-mode: t undo-tree-mode: t global-anzu-mode: t anzu-mode: t projectile-mode: t volatile-highlights-mode: t global-hl-line-mode: t super-save-mode: t windmove-mode: t recentf-mode: t savehist-mode: t save-place-mode: t show-smartparens-global-mode: t show-smartparens-mode: t smartparens-mode: t global-auto-revert-mode: t delete-selection-mode: t prelude-mode: t shell-dirtrack-mode: t which-key-mode: t tooltip-mode: t global-eldoc-mode: t eldoc-mode: t show-paren-mode: t electric-indent-mode: t mac-mouse-wheel-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t size-indication-mode: t column-number-mode: t line-number-mode: t indent-tabs-mode: t transient-mark-mode: t Load-path shadows: /Users/gdanov/.emacs.d/elpa/cmake-mode-20221130.1357/cmake-mode hides = /usr/local/share/emacs/site-lisp/cmake/cmake-mode /Users/gdanov/.emacs.d/elpa/transient-20221119.1503/transient hides = /usr/local/Cellar/emacs-mac/emacs-28.2-mac-9.1/share/emacs/28.2/lisp/trans= ient Features: (shadow sort mail-extr emacsbug sendmail typescript-mode cc-mode-expansions smartparens-c cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs eieio-opt speedbar ezimage dframe helm-command bug-reference helm-x-files elisp-slime-nav rainbow-delimiters elec-pair guru-mode 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helm-cider-cheatsheet helm-cider-util cider-cheatsheet cider cider-debug cider-browse-ns cider-mode cider-find cider-inspector cider-completion cider-profile cider-eval cider-jar arc-mode archive-mode cider-repl-history pulse cider-repl cider-resolve cider-test cider-overlays cider-stacktrace cider-doc cider-browse-spec cider-clojuredocs cider-eldoc cider-client cider-common cider-connection cider-util cider-popup sesman-browser nrepl-client nrepl-dict spinner clojure-mode-expansions smartparens-clojure sesman clojure-mode align parseedn parseclj-parser parseclj-lex parseclj-alist posframe doom-modeline doom-modeline-segments doom-modeline-env doom-modeline-core all-the-icons all-the-icons-faces data-material data-weathericons data-octicons data-fileicons data-faicons data-alltheicons shrink-path f f-shortdoc shortdoc s minions doom-themes-ext-org doom-themes-ext-treemacs doom-themes-ext-neotree doom-themes-ext-visual-bell face-remap doom-one-theme doom-themes doom-themes-base nlinum 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mail-parse rfc2231 rfc2047 rfc2045 mm-util ietf-drums mail-prsvr grep compile ibuf-ext ibuffer ibuffer-loaddefs bookmark text-property-search pp expand-region text-mode-expansions er-basic-expansions expand-region-core expand-region-custom flyspell ispell rect etags fileloop generator xref project volatile-highlights hl-line super-save windmove recentf tree-widget wid-edit savehist saveplace diminish smartparens-config smartparens-text smartparens advice dash autorevert filenotify delsel prelude-mode easy-mmode crux docker-tramp tramp-cache tramp tramp-loaddefs trampver tramp-integration files-x tramp-compat shell pcomplete comint ansi-color ring parse-time iso8601 time-date ls-lisp format-spec thingatpt imenu-anywhere imenu pcase jka-compr prelude-core epl prelude-ui which-key prelude-custom prelude-packages cl-extra help-mode finder-inf rx info edmacro kmacro package browse-url url url-proxy url-privacy url-expand url-methods url-history url-cookie url-domsuf url-util mailcap 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format env code-pages mule custom widget hashtable-print-readable backquote threads kqueue mac multi-tty make-network-process emacs) Memory information: ((conses 16 1024998 582937) (symbols 48 64969 19) (strings 32 287822 163197) (string-bytes 1 9937920) (vectors 16 113430) (vector-slots 8 2200185 552812) (floats 8 1234 2058) (intervals 56 14261 3055) (buffers 992 43))
Georgi Danov <georgi.danov@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#60534; Package emacs.
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