Received: (at 64439) by debbugs.gnu.org; 11 Jul 2023 11:31:56 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Jul 11 07:31:56 2023 Received: from localhost ([127.0.0.1]:49843 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1qJBb1-0005B0-Fo for submit <at> debbugs.gnu.org; Tue, 11 Jul 2023 07:31:56 -0400 Received: from eggs.gnu.org ([209.51.188.92]:54790) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1qJBaw-0005Ak-Fy for 64439 <at> debbugs.gnu.org; Tue, 11 Jul 2023 07:31:54 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1qJBap-0007cn-8w; Tue, 11 Jul 2023 07:31:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=oiZsUheQsmrFwzbM+PPyBvAC9UjRwr7x/3tn50Mhkv4=; b=GYq1WKMFlfaW zOvnxRBm/pMvo/Da1YmwseQLqD7uZfdLvpZnjJg//Wos5TIoWpzpz26s30ntYoB8pjgAlrAOztktc jS1Bk0uH+K+aaJQnswqh8/X8rRdr8PFrvxCgOxQBVXd9TyXRGh99QIpb+knqhGa5qjnB1cteVcNb/ BhQHb2d8aG9slY3rToqh9lmJerCnv6ZsqnpKfgDQc4OH9e1DH+Do2QJNYyXGITOv7LkdMd7IzE7I7 7HWEzkVjW2DTXia9oVlaXbZSlgjVIQ04SjrUokfMnZhYBCSmlRNUaxYA4dx9XVodAG/7EMPSK+0P1 3qy3wObVFmAo6o28vdRrxA==; Received: from [87.69.77.57] (helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1qJBaj-0001Z2-Gf; Tue, 11 Jul 2023 07:31:43 -0400 Date: Tue, 11 Jul 2023 14:31:48 +0300 Message-Id: <83351u8z17.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Jim Porter <jporterbugs@HIDDEN> In-Reply-To: <2cc838cc-058e-7275-9b84-fb872b65fa24@HIDDEN> (message from Jim Porter on Mon, 10 Jul 2023 16:53:41 -0700) Subject: Re: bug#64439: 28.2; auto-fill-mode gets turned on all over the place References: <83h6qlm0oc.fsf@HIDDEN> <1034974.1688399705@HIDDEN> <1211099.1688406521@HIDDEN> <837crgn90u.fsf@HIDDEN> <11d9848d-5a70-c1e5-cbc8-e00341889398@HIDDEN> <83edlhbn1y.fsf@HIDDEN> <fe223c95-a2ae-35ce-73a8-72e26ee0fe38@HIDDEN> <83zg447za9.fsf@HIDDEN> <jwvh6qbog8g.fsf-monnier+emacs@HIDDEN> <6e26e6cf-5784-48fa-4822-5657e8e2db60@HIDDEN> <f1919eb5-552c-ca50-9ba2-5518b8830cd1@HIDDEN> <2cc838cc-058e-7275-9b84-fb872b65fa24@HIDDEN> X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 64439 Cc: dhowells@HIDDEN, npostavs@HIDDEN, michael.albinus@HIDDEN, monnier@HIDDEN, 64439 <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: -3.3 (---) > Date: Mon, 10 Jul 2023 16:53:41 -0700 > From: Jim Porter <jporterbugs@HIDDEN> > Cc: dhowells@HIDDEN, Michael Albinus <michael.albinus@HIDDEN>, > 64439 <at> debbugs.gnu.org, Noam Postavsky <npostavs@HIDDEN> > > On 7/10/2023 2:54 PM, Jim Porter wrote: > > Interestingly, I can't reproduce this on Emacs 30 (latest master), but I > > *can* on Emacs 28.2 and the latest rev on the Emacs 29 branch. I haven't > > dug any further yet to see which commit could have changed this though. > > ... and it looks like you're the one who fixed this, Stefan! Should this > get backported into the emacs-29 branch? Sorry, no. We've lived with this subtle problem for 40 years, we can live another one or two.
bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
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Subject: Re: bug#64439: 28.2; auto-fill-mode gets turned on all over the place
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From: Jim Porter <jporterbugs@HIDDEN>
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On 7/10/2023 2:54 PM, Jim Porter wrote:
> Interestingly, I can't reproduce this on Emacs 30 (latest master), but I
> *can* on Emacs 28.2 and the latest rev on the Emacs 29 branch. I haven't
> dug any further yet to see which commit could have changed this though.
... and it looks like you're the one who fixed this, Stefan! Should this
get backported into the emacs-29 branch? It's a one-line fix, but I'm
not sure if a fix to "src/eval.c" is too invasive for the release branch...
5223762e02ac84eee984cd1f7a17865766cdad9a is the first fixed commit
commit 5223762e02ac84eee984cd1f7a17865766cdad9a
Author: Stefan Monnier <monnier@HIDDEN>
Date: Sun Apr 2 17:45:58 2023 -0400
src/eval.c: Fix bug#62419
Yup, almost 40 years after ELisp first combined them, buffer-local
and let bindings still don't work quite right :-(
The "automatically buffer-local if set" semantics should follow the
principle that it becomes buffer-local iff the var's current binding
refers to the top-level/global/non-let binding.
* src/eval.c (let_shadows_buffer_binding_p): Disregard non-global
let-bindings.
* test/src/eval-tests.el (eval-test--bug62419): New test.
bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
Full text available.Received: (at 64439) by debbugs.gnu.org; 10 Jul 2023 21:55:01 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Jul 10 17:55:01 2023 Received: from localhost ([127.0.0.1]:49325 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1qIyqT-0007po-5P for submit <at> debbugs.gnu.org; Mon, 10 Jul 2023 17:55:01 -0400 Received: from mail-pj1-f44.google.com ([209.85.216.44]:55735) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <jporterbugs@HIDDEN>) id 1qIyqQ-0007pa-B4 for 64439 <at> debbugs.gnu.org; Mon, 10 Jul 2023 17:54:59 -0400 Received: by mail-pj1-f44.google.com with SMTP id 98e67ed59e1d1-262dc1ced40so3644204a91.3 for <64439 <at> debbugs.gnu.org>; Mon, 10 Jul 2023 14:54:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1689026092; x=1691618092; h=content-transfer-encoding:in-reply-to:references:cc:to:from :content-language:subject:mime-version:date:message-id:from:to:cc :subject:date:message-id:reply-to; bh=S8Nu0cBGyA2n4WNWobLQwGxMNbg2zMtWwG54t/CouxA=; b=OTS25Vm36WYOSwY5lBZawIZTAVbaXVfAybLgk3w2nV08vydmdhyENB1dmHP7BQgEJI bWHSPNrgpl7r/b3ROFWGVx4d/Auq3srSE05y11U91VPWNDJyFNQGkzuDUAv4/6xLqBNQ KNa7xxqMv4XRtCBeZ37xo4PaToqd8JPrwlL7RyK4HOF3g5vN0tyrmmNXkJgBWIUctvhg +oCUVVwgUjv/1YxtIPM+HIj6pj+teTJv17XkuV6GOkuwWs96cmhII9Wqf7eeu3Xcrr8M /pGMzygtR0FPpdV1Y8FTQiajURTvNTSbuIYFIj+WSt3jZLE7JaxnzmGyS9pHSfahbk0h /vxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689026092; x=1691618092; h=content-transfer-encoding:in-reply-to:references:cc:to:from :content-language:subject:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=S8Nu0cBGyA2n4WNWobLQwGxMNbg2zMtWwG54t/CouxA=; b=kxZ28POJAoPRqr7912/zzwT9zw6Jle7nQlMLWoOlxjzuTAibZc+VEkOFQs4KOmdm1H kKW2oRsic6qLLXm8eb3y6LtmSRBpcKxD0MmKiwTqo6pUZyfNYduNarRP8ZbmG1yqafZx NgG1RXiOigQXbo/l8Bps5tEu2oc4QbRc3CPgqUZqNO5vpoXr4AVc5NuohOXd1sEgkztp nO+WubfJBJggSfUwiSMf2ALxMdXYuDOfHDUwJQe9yzSbfUAYnYKY9hhNGCn95vvRy579 KdshGzoCKNye2gtaLAC23I/GfHmEbU1k63J3hLfLYSiN6jNI2YfH8veIav1WAr3ZzIGH 1DfQ== X-Gm-Message-State: ABy/qLaa99G7XevjEiKcFYagVxVxEsUPQTQv+hKfc1IPLRBrF1+tN6kg oNsC7PomfLVANU6SMyx8+5A= X-Google-Smtp-Source: APBJJlE4yM87PtS4T9QNj+V9I7y8mhTHCQ1V5vVh6qpw23axcaZwqGzsDYMNP3LhY6JEVNF38M5aIg== X-Received: by 2002:a17:90a:4946:b0:262:ea57:43f with SMTP id c64-20020a17090a494600b00262ea57043fmr14491118pjh.37.1689026092427; Mon, 10 Jul 2023 14:54:52 -0700 (PDT) Received: from [192.168.1.2] (cpe-76-168-148-233.socal.res.rr.com. [76.168.148.233]) by smtp.googlemail.com with ESMTPSA id b6-20020a17090acc0600b00263b4b1255esm6657493pju.51.2023.07.10.14.54.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 10 Jul 2023 14:54:52 -0700 (PDT) Message-ID: <f1919eb5-552c-ca50-9ba2-5518b8830cd1@HIDDEN> Date: Mon, 10 Jul 2023 14:54:51 -0700 MIME-Version: 1.0 Subject: Re: bug#64439: 28.2; auto-fill-mode gets turned on all over the place Content-Language: en-US From: Jim Porter <jporterbugs@HIDDEN> To: Stefan Monnier <monnier@HIDDEN>, Eli Zaretskii <eliz@HIDDEN> References: <83h6qlm0oc.fsf@HIDDEN> <1034974.1688399705@HIDDEN> <1211099.1688406521@HIDDEN> <837crgn90u.fsf@HIDDEN> <11d9848d-5a70-c1e5-cbc8-e00341889398@HIDDEN> <83edlhbn1y.fsf@HIDDEN> <fe223c95-a2ae-35ce-73a8-72e26ee0fe38@HIDDEN> <83zg447za9.fsf@HIDDEN> <jwvh6qbog8g.fsf-monnier+emacs@HIDDEN> <6e26e6cf-5784-48fa-4822-5657e8e2db60@HIDDEN> In-Reply-To: <6e26e6cf-5784-48fa-4822-5657e8e2db60@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 64439 Cc: dhowells@HIDDEN, Michael Albinus <michael.albinus@HIDDEN>, 64439 <at> debbugs.gnu.org, Noam Postavsky <npostavs@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: -1.0 (-) Interestingly, I can't reproduce this on Emacs 30 (latest master), but I *can* on Emacs 28.2 and the latest rev on the Emacs 29 branch. I haven't dug any further yet to see which commit could have changed this though. On 7/10/2023 1:57 PM, Jim Porter wrote: > On 7/10/2023 10:28 AM, Stefan Monnier via Bug reports for GNU Emacs, the > Swiss army knife of text editors wrote: >> Jim, did you collect various backtraces? Do you still have them? >> Can you check more thoroughly to try and see what they all have in common >> (in addition to `ask-user-about-supersession-threat` and "Tramp")? Ok, the common factors I can see right now are: * 'ask-user-about-supersession-threat' * Only happens when I press Enter Tramp seems to have nothing to do with this. >> Can you get an interactive backtrace buffer? If so, I'd be curious to >> know the values that >> >> e (list auto-fill-function (default-value 'auto-fill-function)) RET >> >> returns and more importantly, how it varies from frame to frame. The result appears to be (do-auto-fill do-auto-fill) everywhere.
bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
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[76.168.148.233]) by smtp.googlemail.com with ESMTPSA id w2-20020a170902904200b001b86e17ecacsm318412plz.131.2023.07.10.13.57.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 10 Jul 2023 13:57:33 -0700 (PDT) Message-ID: <6e26e6cf-5784-48fa-4822-5657e8e2db60@HIDDEN> Date: Mon, 10 Jul 2023 13:57:32 -0700 MIME-Version: 1.0 Subject: Re: bug#64439: 28.2; auto-fill-mode gets turned on all over the place Content-Language: en-US To: Stefan Monnier <monnier@HIDDEN>, Eli Zaretskii <eliz@HIDDEN> References: <83h6qlm0oc.fsf@HIDDEN> <1034974.1688399705@HIDDEN> <1211099.1688406521@HIDDEN> <837crgn90u.fsf@HIDDEN> <11d9848d-5a70-c1e5-cbc8-e00341889398@HIDDEN> <83edlhbn1y.fsf@HIDDEN> <fe223c95-a2ae-35ce-73a8-72e26ee0fe38@HIDDEN> <83zg447za9.fsf@HIDDEN> <jwvh6qbog8g.fsf-monnier+emacs@HIDDEN> From: Jim Porter <jporterbugs@HIDDEN> In-Reply-To: <jwvh6qbog8g.fsf-monnier+emacs@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 64439 Cc: dhowells@HIDDEN, Michael Albinus <michael.albinus@HIDDEN>, 64439 <at> debbugs.gnu.org, Noam Postavsky <npostavs@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: -1.0 (-) On 7/10/2023 10:28 AM, Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors wrote: > Jim, did you collect various backtraces? Do you still have them? > Can you check more thoroughly to try and see what they all have in common > (in addition to `ask-user-about-supersession-threat` and "Tramp")? Unfortunately no. I set this issue aside previously, since I was having a hard time making progress. I'll try to keep them around going forward though. > Can you get an interactive backtrace buffer? If so, I'd be curious to > know the values that > > e (list auto-fill-function (default-value 'auto-fill-function)) RET > > returns and more importantly, how it varies from frame to frame. Will do. The next time I hit my (updated) debug code, it'll drop into the debugger and I'll try to get some info out of it.
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The backtraces >>> I've captured all include Tramp too, but I'm not sure the latter is >>> actually necessary to reproduce this bug, or if it just changes the >>> timings to make it more likely. >> "Timings"? is this stuff asynchronous in some sense? Michael, any >> ideas? > > It's just a guess, but if some other Lisp code can run while Tramp is > fetching the file data, that could possibly cause some issue. Sure, there timers, process filters, process sentinels, dbus handlers, file notification handlers, you name it. But my guess is that you're fighting with connection-local variables. They do manipulate buffer-local variables. Best regards, Michael.
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From: Stefan Monnier <monnier@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#64439: 28.2; auto-fill-mode gets turned on all over the place
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[ Adding Noam, because this seems related to
https://github.com/joaotavora/yasnippet/issues/919. ]
> Stefan, are there any other situations where setting a buffer-local
> variable will actually set its default value?
Depends what you mean, but if you do:
(let ((auto-fill-function #'foo))
[...]
(setq auto-fill-function #'bar)
[...])
then `auto-fill-function` will not be made buffer-local. But that won't
set the toplevel default value either (that default value will be
reverted to nil when we leave the `let`).
Interactions between buffer-local values and let-bindings can be tricky,
tho, so there might still be bugs in there.
Jim, did you collect various backtraces? Do you still have them?
Can you check more thoroughly to try and see what they all have in common
(in addition to `ask-user-about-supersession-threat` and "Tramp")?
Can you get an interactive backtrace buffer? If so, I'd be curious to
know the values that
e (list auto-fill-function (default-value 'auto-fill-function)) RET
returns and more importantly, how it varies from frame to frame.
Stefan
bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
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[76.168.148.233]) by smtp.googlemail.com with ESMTPSA id b11-20020a63930b000000b0055bc3b97f34sm7513510pge.19.2023.07.10.09.00.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 10 Jul 2023 09:00:15 -0700 (PDT) Message-ID: <f7d76a26-4fdf-2eca-3678-29b1ab4cb2da@HIDDEN> Date: Mon, 10 Jul 2023 09:00:14 -0700 MIME-Version: 1.0 Subject: Re: bug#64439: 28.2; auto-fill-mode gets turned on all over the place To: Eli Zaretskii <eliz@HIDDEN>, Stefan Monnier <monnier@HIDDEN>, Michael Albinus <michael.albinus@HIDDEN> References: <83h6qlm0oc.fsf@HIDDEN> <1034974.1688399705@HIDDEN> <1211099.1688406521@HIDDEN> <837crgn90u.fsf@HIDDEN> <11d9848d-5a70-c1e5-cbc8-e00341889398@HIDDEN> <83edlhbn1y.fsf@HIDDEN> <fe223c95-a2ae-35ce-73a8-72e26ee0fe38@HIDDEN> <83zg447za9.fsf@HIDDEN> Content-Language: en-US From: Jim Porter <jporterbugs@HIDDEN> In-Reply-To: <83zg447za9.fsf@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 64439 Cc: dhowells@HIDDEN, 64439 <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: -1.0 (-) On 7/10/2023 4:59 AM, Eli Zaretskii wrote: >> Date: Sun, 9 Jul 2023 11:00:46 -0700 >> Cc: dhowells@HIDDEN, 64439 <at> debbugs.gnu.org >> From: Jim Porter <jporterbugs@HIDDEN> >> >> The bug is that when this occurs, rather than setting >> 'auto-fill-function' buffer-locally in text modes, it actually (somehow) >> sets the default value of 'auto-fill-function' > > I don't understand how this is possible with local variables. Maybe > because some code calls makunbound for it? Does local-variable-p > still return non-nil for auto-fill-function when this triggers? I'll add a 'local-variable-p' check to my test code, but whatever's happening here, it only makes 'auto-fill-function' non-local temporarily. Immediately after the backtrace I posted, I evaled "(setq-default auto-fill-function nil)" to fix the default value, and then called 'normal-mode' in a text-mode buffer, and it correctly enabled auto-fill-mode in just that buffer. > Btw, it is possible that your trap snaps too late: that the default > value of auto-fill-function is non-nil does not yet mean this happens > when your hook is called, it could have happened earlier. Because > setting the buffer-local value will DTRT regardless of the global > value, AFAIU. That's true, though I'm pretty sure it's not the case here, since I noticed my prog-mode buffers suddenly have 'auto-fill-mode' (which prompted me to check my *Messages* output to get the backtrace. I'll add some extra checks here in my test code. >> I've only ever seen this happen when >> 'ask-user-about-supersession-threat' is in the stack. The backtraces >> I've captured all include Tramp too, but I'm not sure the latter is >> actually necessary to reproduce this bug, or if it just changes the >> timings to make it more likely. > > "Timings"? is this stuff asynchronous in some sense? Michael, any > ideas? It's just a guess, but if some other Lisp code can run while Tramp is fetching the file data, that could possibly cause some issue.
bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
Full text available.Received: (at 64439) by debbugs.gnu.org; 10 Jul 2023 11:59:58 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Jul 10 07:59:58 2023 Received: from localhost ([127.0.0.1]:47873 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1qIpYb-0000Cz-D8 for submit <at> debbugs.gnu.org; Mon, 10 Jul 2023 07:59:57 -0400 Received: from eggs.gnu.org ([209.51.188.92]:55976) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1qIpYV-0000Ch-H4 for 64439 <at> debbugs.gnu.org; Mon, 10 Jul 2023 07:59:54 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1qIpYC-0004q9-4q; Mon, 10 Jul 2023 07:59:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=MifidAgSaExJmEtc9r4+6ayahIhB0Mhwvaf/bIXCX34=; b=Jg0wgFa5DpP1 GPiVWAunfxqkmqRcvthrj8Kq4coVjtrezy6HcLrXq12zt3yAWkooOYWVMX8qY15GKwnztdSzqb2XO TcfowUIXAqBUYwDlNfUHLnnL1aK+SeRwqOduZXRxO9SY/s/e42e7ZgN/Zodv/kuxolxL5ubwk5B3s qpf68fuu10PfyoNiT5/0L+3WlRocLgM9YGfStjkBWhSByDoncEZLYihyTaNNjUk9JtRoE5HUJo8jo yLslFRfzEZej1Cb7KJdanggQTiOINVPTeQ6+udDl6KhPC97DamMQ+4n/dLJ5wWwNx19SX0kwGffVV +aEdYTh0a91U+TzNKDN0fA==; Received: from [87.69.77.57] (helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1qIpXx-0003ny-Db; Mon, 10 Jul 2023 07:59:31 -0400 Date: Mon, 10 Jul 2023 14:59:26 +0300 Message-Id: <83zg447za9.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Jim Porter <jporterbugs@HIDDEN>, Stefan Monnier <monnier@HIDDEN>, Michael Albinus <michael.albinus@HIDDEN> In-Reply-To: <fe223c95-a2ae-35ce-73a8-72e26ee0fe38@HIDDEN> (message from Jim Porter on Sun, 9 Jul 2023 11:00:46 -0700) Subject: Re: bug#64439: 28.2; auto-fill-mode gets turned on all over the place References: <83h6qlm0oc.fsf@HIDDEN> <1034974.1688399705@HIDDEN> <1211099.1688406521@HIDDEN> <837crgn90u.fsf@HIDDEN> <11d9848d-5a70-c1e5-cbc8-e00341889398@HIDDEN> <83edlhbn1y.fsf@HIDDEN> <fe223c95-a2ae-35ce-73a8-72e26ee0fe38@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 64439 Cc: dhowells@HIDDEN, 64439 <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: -3.3 (---) > Date: Sun, 9 Jul 2023 11:00:46 -0700 > Cc: dhowells@HIDDEN, 64439 <at> debbugs.gnu.org > From: Jim Porter <jporterbugs@HIDDEN> > > On 7/8/2023 11:45 PM, Eli Zaretskii wrote: > > I must be missing something: why is the above deemed to be a bug? > > AFAIU, you asked any text-mode derivative mode to turn on auto-fill, > > and this is what happened here: normal-mode called outline-mode, which > > turned on auto-fill. What am I missing? > > The bug is that when this occurs, rather than setting > 'auto-fill-function' buffer-locally in text modes, it actually (somehow) > sets the default value of 'auto-fill-function' I don't understand how this is possible with local variables. Maybe because some code calls makunbound for it? Does local-variable-p still return non-nil for auto-fill-function when this triggers? Stefan, are there any other situations where setting a buffer-local variable will actually set its default value? Btw, it is possible that your trap snaps too late: that the default value of auto-fill-function is non-nil does not yet mean this happens when your hook is called, it could have happened earlier. Because setting the buffer-local value will DTRT regardless of the global value, AFAIU. > I've instrumented this code in a few other ways previously, and the best > I can guess so far is that at some point during this backtrace, Emacs > gets confused about the current buffer, so that when we ultimately call > "(setq auto-fill-function X)", the code to set the value buffer-locally > doesn't run. As I say above, I don't understand how this can happen. Even if we are "confused" about the current buffer, at worst we will set auto-fill-function in the wrong buffer. > I've only ever seen this happen when > 'ask-user-about-supersession-threat' is in the stack. The backtraces > I've captured all include Tramp too, but I'm not sure the latter is > actually necessary to reproduce this bug, or if it just changes the > timings to make it more likely. "Timings"? is this stuff asynchronous in some sense? Michael, any ideas?
bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
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[76.168.148.233]) by smtp.googlemail.com with ESMTPSA id q17-20020a62e111000000b0062bc045bf4fsm5905683pfh.19.2023.07.09.11.00.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 09 Jul 2023 11:00:47 -0700 (PDT) Message-ID: <fe223c95-a2ae-35ce-73a8-72e26ee0fe38@HIDDEN> Date: Sun, 9 Jul 2023 11:00:46 -0700 MIME-Version: 1.0 Subject: Re: bug#64439: 28.2; auto-fill-mode gets turned on all over the place To: Eli Zaretskii <eliz@HIDDEN> References: <83h6qlm0oc.fsf@HIDDEN> <1034974.1688399705@HIDDEN> <1211099.1688406521@HIDDEN> <837crgn90u.fsf@HIDDEN> <11d9848d-5a70-c1e5-cbc8-e00341889398@HIDDEN> <83edlhbn1y.fsf@HIDDEN> Content-Language: en-US From: Jim Porter <jporterbugs@HIDDEN> In-Reply-To: <83edlhbn1y.fsf@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 64439 Cc: dhowells@HIDDEN, 64439 <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: -1.0 (-) On 7/8/2023 11:45 PM, Eli Zaretskii wrote: > I must be missing something: why is the above deemed to be a bug? > AFAIU, you asked any text-mode derivative mode to turn on auto-fill, > and this is what happened here: normal-mode called outline-mode, which > turned on auto-fill. What am I missing? The bug is that when this occurs, rather than setting 'auto-fill-function' buffer-locally in text modes, it actually (somehow) sets the default value of 'auto-fill-function', so *every* buffer has 'auto-fill-mode' enabled. I've instrumented this code in a few other ways previously, and the best I can guess so far is that at some point during this backtrace, Emacs gets confused about the current buffer, so that when we ultimately call "(setq auto-fill-function X)", the code to set the value buffer-locally doesn't run. I've only ever seen this happen when 'ask-user-about-supersession-threat' is in the stack. The backtraces I've captured all include Tramp too, but I'm not sure the latter is actually necessary to reproduce this bug, or if it just changes the timings to make it more likely.
bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
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Date: Sun, 09 Jul 2023 09:45:29 +0300
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From: Eli Zaretskii <eliz@HIDDEN>
To: Jim Porter <jporterbugs@HIDDEN>
In-Reply-To: <11d9848d-5a70-c1e5-cbc8-e00341889398@HIDDEN> (message from
Jim Porter on Sat, 8 Jul 2023 22:57:12 -0700)
Subject: Re: bug#64439: 28.2; auto-fill-mode gets turned on all over the place
References: <83h6qlm0oc.fsf@HIDDEN>
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> Date: Sat, 8 Jul 2023 22:57:12 -0700
> Cc: 64439 <at> debbugs.gnu.org
> From: Jim Porter <jporterbugs@HIDDEN>
>
> On 7/3/2023 11:29 AM, Eli Zaretskii wrote:
> > I guess tracking down this problem will be harder, then. I hope I at
> > least gave you some ideas with which you will be able to construct a
> > suitable trap and find the culprit. Good luck!
>
> I got a backtrace when this happened to me. Outside of Emacs, I checked
> out a different Git branch, and then went back to Emacs and started
> typing into "etc/NEWS" (the specific file probably doesn't matter much),
> which triggered the supersession prompt as you'd expect. This was all
> over Tramp/SSH (again, not sure this is relevant).
>
> Here's the debug code I added to trace this:
>
> ----------------------------------------
>
> (use-package text-mode
> :preface
> (defun user/turn-on-auto-fill ()
> "Turn on auto-fill, but log a warning if it's not local to a buffer."
> (turn-on-auto-fill)
> (when (default-value 'auto-fill-function)
> (display-warning 'auto-fill :error
> "Default value of `auto-fill-function' was set!")
> (backtrace)))
>
> :hook (text-mode . user/turn-on-auto-fill))
>
> ----------------------------------------
>
> And here's the backtrace (plus a couple lines immediately preceding):
>
> ----------------------------------------
>
> NEWS changed on disk; really edit the buffer? (y, n, r or C-h) r
> Tramp: Inserting ‘/sshx:jim@remote:/home/jim/src/emacs/etc/NEWS’...done
> backtrace()
> (progn (display-warning 'auto-fill :error "Default value of
> `auto-fill-function' was set!") (backtrace))
> (if (default-value 'auto-fill-function) (progn (display-warning
> 'auto-fill :error "Default value of `auto-fill-function' was set!")
> (backtrace)))
> (when (default-value 'auto-fill-function) (display-warning 'auto-fill
> :error "Default value of `auto-fill-function' was set!") (backtrace))
> user/turn-on-auto-fill()
> run-hooks(change-major-mode-after-body-hook text-mode-hook
> outline-mode-hook)
> apply(run-hooks (change-major-mode-after-body-hook text-mode-hook
> outline-mode-hook))
> run-mode-hooks(outline-mode-hook)
> outline-mode()
> set-auto-mode-0(outline-mode nil)
> set-auto-mode()
> normal-mode(t)
> after-find-file(nil nil t nil nil)
> revert-buffer--default(nil t)
> revert-buffer(nil t)
>
> ask-user-about-supersession-threat("/sshx:jim@remote:~/src/emacs/etc/NEWS")
> tramp-handle-lock-file("/sshx:jim@remote:~/src/emacs/etc/NEWS")
> apply(tramp-handle-lock-file "/sshx:jim@remote:~/src/emacs/etc/NEWS")
> tramp-sh-file-name-handler(lock-file
> "/sshx:jim@remote:~/src/emacs/etc/NEWS")
> apply(tramp-sh-file-name-handler lock-file
> "/sshx:jim@remote:~/src/emacs/etc/NEWS")
> tramp-file-name-handler(lock-file
> "/sshx:jim@remote:~/src/emacs/etc/NEWS")
> newline(nil 1)
> funcall-interactively(newline nil 1)
> command-execute(newline)
>
> ----------------------------------------
>
> This might not be the most useful backtrace in the world, but hopefully
> it at least confirms one way this can happen. It's rare enough though
> that I can't reproduce it on command. It does lead me to believe that
> there's a bug with automatically-buffer-local variables, since
> 'turn-on-auto-fill' should Just Work here (and it typically does).
I must be missing something: why is the above deemed to be a bug?
AFAIU, you asked any text-mode derivative mode to turn on auto-fill,
and this is what happened here: normal-mode called outline-mode, which
turned on auto-fill. What am I missing?
bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
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On 7/3/2023 11:29 AM, Eli Zaretskii wrote:
> I guess tracking down this problem will be harder, then. I hope I at
> least gave you some ideas with which you will be able to construct a
> suitable trap and find the culprit. Good luck!
I got a backtrace when this happened to me. Outside of Emacs, I checked
out a different Git branch, and then went back to Emacs and started
typing into "etc/NEWS" (the specific file probably doesn't matter much),
which triggered the supersession prompt as you'd expect. This was all
over Tramp/SSH (again, not sure this is relevant).
Here's the debug code I added to trace this:
----------------------------------------
(use-package text-mode
:preface
(defun user/turn-on-auto-fill ()
"Turn on auto-fill, but log a warning if it's not local to a buffer."
(turn-on-auto-fill)
(when (default-value 'auto-fill-function)
(display-warning 'auto-fill :error
"Default value of `auto-fill-function' was set!")
(backtrace)))
:hook (text-mode . user/turn-on-auto-fill))
----------------------------------------
And here's the backtrace (plus a couple lines immediately preceding):
----------------------------------------
NEWS changed on disk; really edit the buffer? (y, n, r or C-h) r
Tramp: Inserting ‘/sshx:jim@remote:/home/jim/src/emacs/etc/NEWS’...done
backtrace()
(progn (display-warning 'auto-fill :error "Default value of
`auto-fill-function' was set!") (backtrace))
(if (default-value 'auto-fill-function) (progn (display-warning
'auto-fill :error "Default value of `auto-fill-function' was set!")
(backtrace)))
(when (default-value 'auto-fill-function) (display-warning 'auto-fill
:error "Default value of `auto-fill-function' was set!") (backtrace))
user/turn-on-auto-fill()
run-hooks(change-major-mode-after-body-hook text-mode-hook
outline-mode-hook)
apply(run-hooks (change-major-mode-after-body-hook text-mode-hook
outline-mode-hook))
run-mode-hooks(outline-mode-hook)
outline-mode()
set-auto-mode-0(outline-mode nil)
set-auto-mode()
normal-mode(t)
after-find-file(nil nil t nil nil)
revert-buffer--default(nil t)
revert-buffer(nil t)
ask-user-about-supersession-threat("/sshx:jim@remote:~/src/emacs/etc/NEWS")
tramp-handle-lock-file("/sshx:jim@remote:~/src/emacs/etc/NEWS")
apply(tramp-handle-lock-file "/sshx:jim@remote:~/src/emacs/etc/NEWS")
tramp-sh-file-name-handler(lock-file
"/sshx:jim@remote:~/src/emacs/etc/NEWS")
apply(tramp-sh-file-name-handler lock-file
"/sshx:jim@remote:~/src/emacs/etc/NEWS")
tramp-file-name-handler(lock-file
"/sshx:jim@remote:~/src/emacs/etc/NEWS")
newline(nil 1)
funcall-interactively(newline nil 1)
command-execute(newline)
----------------------------------------
This might not be the most useful backtrace in the world, but hopefully
it at least confirms one way this can happen. It's rare enough though
that I can't reproduce it on command. It does lead me to believe that
there's a bug with automatically-buffer-local variables, since
'turn-on-auto-fill' should Just Work here (and it typically does).
bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
Full text available.Received: (at 64439) by debbugs.gnu.org; 3 Jul 2023 18:29:11 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Jul 03 14:29:11 2023 Received: from localhost ([127.0.0.1]:34472 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1qGOIR-0001Ai-7w for submit <at> debbugs.gnu.org; Mon, 03 Jul 2023 14:29:11 -0400 Received: from eggs.gnu.org ([209.51.188.92]:51444) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1qGOIN-0001AI-4a for 64439 <at> debbugs.gnu.org; Mon, 03 Jul 2023 14:29:10 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1qGOIH-0007hm-BU; Mon, 03 Jul 2023 14:29:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=Opm8FhYScX3ymCL+WLjXiLTkTWZHxtxgaUnCoPPMU6I=; b=b7HwA9LV+BuS 9kG3V1yXmms3mHLGFxhlwz2Wmr+A7NGcoi7mTDguX3Df8g+jbiB2eFF0LVtDqmIxOCc2DWUpp1xvt aZr0A9/EXvfgB28OzF9HuKIGazHkOLp8WVKdPJXA9QbkD/nGCf6BJogzzJgaFHCQcHCVf+qMbH0UB 4d0xjSqy7gzgLAmOqK4fKiysGxrBimTYqkgy9lEpQLO5F3rzd/Y/jIQOuG0GJ6LOYsBFCdj08TIsg uxW2I8DUw3zbvukzBAG6KgoVOzcyb2G2lEQTPEsE9lLxSPqjPX0Z1Ly9QC3mbFTQj4VH+VyDdl3gE zDwveOQLrnxT2coqlY/wHg==; Received: from [87.69.77.57] (helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1qGOIG-00047t-R2; Mon, 03 Jul 2023 14:29:01 -0400 Date: Mon, 03 Jul 2023 21:29:38 +0300 Message-Id: <837crgn90u.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: David Howells <dhowells@HIDDEN> In-Reply-To: <1211099.1688406521@HIDDEN> (message from David Howells on Mon, 03 Jul 2023 18:48:41 +0100) Subject: Re: bug#64439: 28.2; auto-fill-mode gets turned on all over the place References: <83h6qlm0oc.fsf@HIDDEN> <1034974.1688399705@HIDDEN> <1211099.1688406521@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 64439 Cc: 64439 <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: -3.3 (---) > From: David Howells <dhowells@HIDDEN> > Cc: dhowells@HIDDEN, 64439 <at> debbugs.gnu.org > Date: Mon, 03 Jul 2023 18:48:41 +0100 > > Eli Zaretskii <eliz@HIDDEN> wrote: > > > Try evaluating this: > > > > (defun my-watcher (_symbol new-value operation where) > > (error "auto-fill-mode: %s %s %s" new-value operation where)) > > (add-variable-watcher 'auto-fill-function 'my-watcher) > > (debug-on-entry 'my-watcher) > > > > and run your sessions with this. Whenever auto-fill-mode is turned > > on, you will get a backtrace. > > I restarted emacs and added the above. I was editing some C code, pressed > enter and got: > > Debugger entered--entering a function: > * my-watcher(auto-fill-function nil set nil) > newline(nil 1) > funcall-interactively(newline nil 1) > command-execute(newline) Hmm... > auto-fill-mode didn't seem to turn on, though Because the function newline only let-binds auto-fill-function locally. I guess tracking down this problem will be harder, then. I hope I at least gave you some ideas with which you will be able to construct a suitable trap and find the culprit. Good luck!
bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
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[76.168.148.233]) by smtp.googlemail.com with ESMTPSA id 10-20020a17090a19ca00b0026104629998sm18738771pjj.43.2023.07.03.11.14.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 03 Jul 2023 11:14:09 -0700 (PDT) Message-ID: <684d9020-84e2-a60c-18e4-b443ed7d16b5@HIDDEN> Date: Mon, 3 Jul 2023 11:14:10 -0700 MIME-Version: 1.0 Subject: Re: bug#64439: 28.2; auto-fill-mode gets turned on all over the place Content-Language: en-US To: David Howells <dhowells@HIDDEN>, 64439 <at> debbugs.gnu.org References: <1034974.1688399705@HIDDEN> From: Jim Porter <jporterbugs@HIDDEN> In-Reply-To: <1034974.1688399705@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 64439 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 (-) On 7/3/2023 8:55 AM, David Howells wrote: > I'm seeing an issue in which auto-fill-mode gets turned on for all the buffers > in a running emacs instance, including the command entry window (M-x, grep, > compile, etc.). I've seen this too actually, but have had a hard time narrowing it down. I did something similar to Eli's suggestion a bit ago and did get a couple of data points, however: * First, I have 'turn-on-auto-fill-mode' set on 'text-mode-hook'. * It only seems to happen for me when a text-mode file was changed outside of Emacs, and then I press "r" (refresh) at the Emacs supersession prompt. This results in the mode being restarted (I think), which in turn calls 'turn-on-auto-fill-mode'. Occasionally, something gets messed up, and that function ends up setting the *default* value for 'auto-fill-function'. * I usually notice this on files I'm editing over Tramp, but that might not be relevant since I use Tramp very heavily, and maybe I'm just getting "lucky". I'm not sure, but perhaps there's a bug in 'set_internal'? There's some code in the 'SYMBOL_LOCALIZED' block of the switch statement in there that seems like it could relate to this, but I haven't had time to dig much into this, so that could be a red herring... > In both cases, the emacs instances are typically running for multiple weeks > till I need to reboot - or the issue becomes sufficiently irritating that I > restart emacs. Something like "(setq-default auto-fill-function nil)" should fix your Emacs session.
bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
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bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
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Date: Mon, 03 Jul 2023 19:15:15 +0300
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From: Eli Zaretskii <eliz@HIDDEN>
To: David Howells <dhowells@HIDDEN>
In-Reply-To: <1034974.1688399705@HIDDEN> (message from David
Howells on Mon, 03 Jul 2023 16:55:05 +0100)
Subject: Re: bug#64439: 28.2; auto-fill-mode gets turned on all over the place
References: <1034974.1688399705@HIDDEN>
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> Cc: dhowells@HIDDEN
> From: David Howells <dhowells@HIDDEN>
> Date: Mon, 03 Jul 2023 16:55:05 +0100
>
> I'm seeing an issue in which auto-fill-mode gets turned on for all the buffers
> in a running emacs instance, including the command entry window (M-x, grep,
> compile, etc.). This is a problem as it starts mangling the code I'm working
> on and making it harder to enter long commands (such as grep or compile
> commands). I can turn it off manually on most buffers (though not the command
> window), but it immediately turns back on in a buffer if I have to reload it.
>
> The problem has happened in several emacs instances now. It shows up in the
> instances I've been using to edit C code and view patches. It takes a little
> while for the problem to manifest when it does. I'm not sure what triggers
> it.
Try evaluating this:
(defun my-watcher (_symbol new-value operation where)
(error "auto-fill-mode: %s %s %s" new-value operation where))
(add-variable-watcher 'auto-fill-function 'my-watcher)
(debug-on-entry 'my-watcher)
and run your sessions with this. Whenever auto-fill-mode is turned
on, you will get a backtrace. If you turn this mode yourself, and
don't want to be annoyed by entering the debugger each time, remove
the last line from the recipe: then you will just see a message when
auto-fill-mode is turned on, and will need to investigate which code
did that.
bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
Full text available.Received: (at submit) by debbugs.gnu.org; 3 Jul 2023 15:56:26 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Jul 03 11:56:26 2023 Received: from localhost ([127.0.0.1]:34323 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1qGLub-0005Px-9K for submit <at> debbugs.gnu.org; Mon, 03 Jul 2023 11:56:25 -0400 Received: from lists.gnu.org ([209.51.188.17]:45892) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <dhowells@HIDDEN>) id 1qGLuV-0005Pc-Jd for submit <at> debbugs.gnu.org; Mon, 03 Jul 2023 11:56:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <dhowells@HIDDEN>) id 1qGLuV-0000mo-B8 for bug-gnu-emacs@HIDDEN; Mon, 03 Jul 2023 11:56:19 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <dhowells@HIDDEN>) id 1qGLuS-0004Df-VA for bug-gnu-emacs@HIDDEN; Mon, 03 Jul 2023 11:56:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1688399775; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=mZ20rnAU2qPrf+3qf4MW9STfw8KxUZg/3jMMrYA2zsA=; b=cuLjCwtR4Qhtw3Q/+tx/BLislui2ksgzMYvYz1j2J3aKLal2zbOyrd/E3P5deE1m7jcWSL ScwUHTd9snRfOS1xNu0EuqL5QVmsJ4U8MkMptkEZV9bIoSlPzeV2AJ3uTOG/4Ft43YMnsp 4+Xe9XHLBBDfq8ZmWhuSzfADuhQuapI= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-180-G_bq-PQ0O6aad46boxkgBA-1; Mon, 03 Jul 2023 11:55:06 -0400 X-MC-Unique: G_bq-PQ0O6aad46boxkgBA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A72C68910FA for <bug-gnu-emacs@HIDDEN>; Mon, 3 Jul 2023 15:55:06 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.42.28.195]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4506240C2063; Mon, 3 Jul 2023 15:55:06 +0000 (UTC) Organization: Red Hat UK Ltd. 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Registered in England and Wales under Company Registration No. 3798903 From: David Howells <dhowells@HIDDEN> To: bug-gnu-emacs@HIDDEN Subject: 28.2; auto-fill-mode gets turned on all over the place MIME-Version: 1.0 Date: Mon, 03 Jul 2023 16:55:05 +0100 Message-ID: <1034974.1688399705@HIDDEN> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="us-ascii" Content-ID: <1034973.1688399705.1@HIDDEN> Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=170.10.129.124; envelope-from=dhowells@HIDDEN; helo=us-smtp-delivery-124.mimecast.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, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.4 (-) X-Debbugs-Envelope-To: submit Cc: dhowells@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: -2.4 (--) Hi, I'm seeing an issue in which auto-fill-mode gets turned on for all the buff= ers in a running emacs instance, including the command entry window (M-x, grep, compile, etc.). This is a problem as it starts mangling the code I'm worki= ng on and making it harder to enter long commands (such as grep or compile commands). I can turn it off manually on most buffers (though not the comm= and window), but it immediately turns back on in a buffer if I have to reload i= t. The problem has happened in several emacs instances now. It shows up in th= e instances I've been using to edit C code and view patches. It takes a litt= le while for the problem to manifest when it does. I'm not sure what triggers it. It doesn't, however, happen in the emacs instances I've been using to read = my mail with MH and edit occasional text files on the same system. In both cases, the emacs instances are typically running for multiple weeks till I need to reboot - or the issue becomes sufficiently irritating that I restart emacs. Thanks, David In GNU Emacs 28.2 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.24.37, = cairo version 1.17.8) of 2023-05-02 built on 0cdeb17096554a4c83d448c2d2754877 Windowing system distributor 'The X.Org Foundation', version 11.0.12014000 System Description: Fedora Linux 39 (Rawhide Prerelease) Configured using: 'configure --build=3Dx86_64-redhat-linux-gnu --host=3Dx86_64-redhat-linux-= gnu --program-prefix=3D --disable-dependency-tracking --prefix=3D/usr --exec-prefix=3D/usr --bindir=3D/usr/bin --sbindir=3D/usr/sbin --sysconfdi= r=3D/etc --datadir=3D/usr/share --includedir=3D/usr/include --libdir=3D/usr/lib64 --libexecdir=3D/usr/libexec --localstatedir=3D/var --runstatedir=3D/run --sharedstatedir=3D/var/lib --mandir=3D/usr/share/man --infodir=3D/usr/sha= re/info --with-dbus --with-gif --with-jpeg --with-png --with-rsvg --with-tiff --with-xpm --with-x-toolkit=3Dgtk3 --with-gpm=3Dno --with-xwidgets --with-= modules --with-harfbuzz --with-cairo --with-json --with-native-compilation build_alias=3Dx86_64-redhat-linux-gnu host_alias=3Dx86_64-redhat-linux-gnu= CC=3Dgcc 'CFLAGS=3D-DMAIL_USE_LOCKF -O2 -flto=3Dauto -ffat-lto-objects -fexceptions= -g -grecord-gcc-switches -pipe -Wall -Werror=3Dformat-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3D3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=3D/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=3D/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=3Dgeneric -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer ' LDFLAGS=3D-Wl,-z,re= lro PKG_CONFIG_PATH=3D:/usr/lib64/pkgconfig:/usr/share/pkgconfig' Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS X11 XDBE XIM XPM XWIDGETS GTK3 ZLIB Important settings: value of $LANG: en_GB.UTF-8 value of $XMODIFIERS: @im=3Dnone locale-coding-system: utf-8-unix Major mode: Diff Minor modes in effect: shell-dirtrack-mode: t display-time-mode: t tooltip-mode: t global-eldoc-mode: t show-paren-mode: t electric-indent-mode: t 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 line-number-mode: t auto-fill-function: do-auto-fill indent-tabs-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message puny dired dired-loaddefs rfc822 mm= l mml-sec epa derived epg rfc6068 epg-config gnus-util rmail rmail-loaddefs auth-source eieio eieio-core eieio-loaddefs password-cache json map mm-deco= de mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils face-rema= p make-mode help-fns radix-tree cl-print debug backtrace find-func conf-mode vc-annotate vc-mtn vc-hg vc-bzr vc-src vc-sccs vc-svn vc-cvs vc-rcs add-log log-view pcvs-util vc rect smerge-mode diff pulse color rmc etags fileloop generator xref project hippie-exp misearch multi-isearch shell pcomplete thingatpt files-x grep compile text-property-search comint ansi-color ring time-date jka-compr vc-git vc-dispatcher cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs comp comp-cstr warning= s subr-x rx cl-seq cl-macs cl-extra help-mode seq byte-opt gv cl-loaddefs cl-= lib bytecomp byte-compile cconv diff-mode easy-mmode time iso-transl tooltip el= doc paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwhe= el term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-op= t fringe tabulated-list replace newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors frame minibuffer cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray cl-preloaded nadvice button loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote threads xwidget-internal dbusbind inotify dynamic-setting system-font-setting font-render-setting ca= iro move-toolbar gtk x-toolkit x multi-tty make-network-process native-compile emacs) Memory information: ((conses 16 858994 53275) (symbols 48 17882 0) (strings 32 99037 4596) (string-bytes 1 5475389) (vectors 16 30928) (vector-slots 8 670739 45813) (floats 8 146 348) (intervals 56 136420 2641) (buffers 992 115))
David Howells <dhowells@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#64439; Package emacs.
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