Received: (at 63024) by debbugs.gnu.org; 8 May 2023 14:08:57 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon May 08 10:08:57 2023 Received: from localhost ([127.0.0.1]:41256 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1pw1Xt-0006lE-Fj for submit <at> debbugs.gnu.org; Mon, 08 May 2023 10:08:57 -0400 Received: from eggs.gnu.org ([209.51.188.92]:38050) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <ludo@HIDDEN>) id 1pw1Xr-0006kj-6w; Mon, 08 May 2023 10:08:55 -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 <ludo@HIDDEN>) id 1pw1Xl-0008V0-9T; Mon, 08 May 2023 10:08:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:In-Reply-To:Date:References:Subject:To: From; bh=esKE/S8VGW0auwtHlYAcJHEZY6gEZqnG962tefhjwbs=; b=CBBGqaqZ3hXuRhlTfaCC ODrikCFyWgsDQL6qqDyahAViGru/uqdWmeYtKI+s1ZRsnqIpxYin1fJMs2XWyR6L5VdlUFPd6WSWY tqKhGhreFGjp5DNawtwJ14uzjPvPAJDuYIlAk08Bf72Uxsansx7TMPWhAxiRE2TtvHdy9Fu5Qfqx0 QPOMVq/TpkSfPZX6SeEWscM7t04PCdo1DBBLLmK2SXlwQg7t6y9gcOZpqVP5UAsLpZfc+VWUYSESd AXoM2phuNYK1JGvW+UCdRRbkiFjCxngMiRj+9A7zbdH17tFYwd4aN9exnH6Fm1Yp+Bp2sWKDirz7P bXZ5M221GJrE2A==; Received: from 91-160-117-201.subs.proxad.net ([91.160.117.201] helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <ludo@HIDDEN>) id 1pw1Xj-0000Jh-Je; Mon, 08 May 2023 10:08:48 -0400 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN> To: Josselin Poiret <dev@HIDDEN> Subject: Re: bug#63024: Guile's "sleep pipe" can leak into processes created by 'spawn' References: <87mt2l4whd.fsf@HIDDEN> <f7db538ea324545f2e297b6a6cdcd937f889ef63.1683293896.git.dev@HIDDEN> Date: Mon, 08 May 2023 16:08:44 +0200 In-Reply-To: <f7db538ea324545f2e297b6a6cdcd937f889ef63.1683293896.git.dev@HIDDEN> (Josselin Poiret's message of "Fri, 5 May 2023 15:39:22 +0200") Message-ID: <87mt2edifn.fsf_-_@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 63024 Cc: 63024 <at> debbugs.gnu.org, 62334 <at> debbugs.gnu.org, Greg Hogan <code@HIDDEN>, Simon Tournier <zimon.toutoune@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: -3.3 (---) Hi Josselin, Josselin Poiret <dev@HIDDEN> skribis: > Sorry for not noticing this thread sooner! Here's my take on it, a minor > variation but that's what I'd prefer tbh. Even nicer! Pushed to =E2=80=98main=E2=80=99 as two patches (I folded the = test along with the fix, for clarity) and with cosmetic changes to match GNU coding style for C. 36fd2b492 main origin/main Use /dev/null in 'piped-process' if port is no= t backed by a fdes. ccd7400fd Add error handling for spawn's posix_spawn_file_actions_adddup2. Thanks! Ludo=E2=80=99.
bug-guix@HIDDEN:bug#63024; Package guix.
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From: Josselin Poiret <dev@HIDDEN>
To: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@HIDDEN>,
Josselin Poiret <dev@HIDDEN>
Subject: [PATCH 1/3] Add error handling for spawn's
posix_spawn_file_actions_adddup2
Date: Fri, 5 May 2023 15:39:22 +0200
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From: Josselin Poiret <dev@HIDDEN>
* libguile/posix.c (do_spawn): Add error handling if
posix_spawn_file_actions_adddup2 fails.
---
Hi Ludo,
Sorry for not noticing this thread sooner! Here's my take on it, a minor
variation but that's what I'd prefer tbh.
LMKWYT,
Josselin
libguile/posix.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/libguile/posix.c b/libguile/posix.c
index 3adc743c4..2969f1f24 100644
--- a/libguile/posix.c
+++ b/libguile/posix.c
@@ -1390,12 +1390,15 @@ do_spawn (char *exec_file, char **exec_argv, char **exec_env,
/* Move the fds out of the way, so that duplicate fds or fds equal
to 0, 1, 2 don't trample each other */
- posix_spawn_file_actions_adddup2 (&actions, in, fd_slot[0]);
- posix_spawn_file_actions_adddup2 (&actions, out, fd_slot[1]);
- posix_spawn_file_actions_adddup2 (&actions, err, fd_slot[2]);
- posix_spawn_file_actions_adddup2 (&actions, fd_slot[0], 0);
- posix_spawn_file_actions_adddup2 (&actions, fd_slot[1], 1);
- posix_spawn_file_actions_adddup2 (&actions, fd_slot[2], 2);
+ int dup2_action_from[] = {in, out, err,
+ fd_slot[0], fd_slot[1], fd_slot[2]};
+ int dup2_action_to [] = {fd_slot[0], fd_slot[1], fd_slot[2],
+ 0, 1, 2};
+
+ errno = 0;
+ for (int i = 0;i < sizeof (dup2_action_from) / sizeof (int);i++)
+ if ((errno = posix_spawn_file_actions_adddup2 (&actions, dup2_action_from[i], dup2_action_to[i])))
+ return -1;
#ifdef HAVE_ADDCLOSEFROM
/* This function appears in glibc 2.34. It's both free from race
base-commit: fe6cc6d04ab094ea802907bdc4f728416c0e97ba
--
2.39.2
bug-guix@HIDDEN:bug#63024; Package guix.
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From: Josselin Poiret <dev@HIDDEN>
To: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@HIDDEN>,
Josselin Poiret <dev@HIDDEN>
Subject: [PATCH 3/3] tests: Test that system* works if stdin/out/err isn't
backed by fdes
Date: Fri, 5 May 2023 15:39:24 +0200
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From: Ludovic Courtès <ludo@HIDDEN>
* test-suite/tests/posix.test: New test for https://bugs.gnu.org/63024.
---
test-suite/tests/posix.test | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/test-suite/tests/posix.test b/test-suite/tests/posix.test
index d5cf47cda..18dad8902 100644
--- a/test-suite/tests/posix.test
+++ b/test-suite/tests/posix.test
@@ -374,7 +374,17 @@
(system* "sh" "-c" "echo bong >&2"))))))))
(and (zero? (status:exit-val status))
- (call-with-input-file file get-string-all)))))
+ (call-with-input-file file get-string-all))))
+
+ (pass-if-equal "https://bugs.gnu.org/63024"
+ 0
+ (if (file-exists? "/proc/self/fd/0") ;on GNU/Linux?
+ (parameterize ((current-output-port (%make-void-port "w0")))
+ (system* "guile" "-c"
+ (object->string
+ '(exit (string=? "/dev/null"
+ (readlink "/proc/self/fd/1"))))))
+ (throw 'unresolved))))
;;
;; spawn
--
2.39.2
bug-guix@HIDDEN:bug#63024; Package guix.
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From: Josselin Poiret <dev@HIDDEN>
To: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@HIDDEN>,
Josselin Poiret <dev@HIDDEN>
Subject: [PATCH 2/3] Use /dev/null in piped-process if port is not backed by a
fdes
Date: Fri, 5 May 2023 15:39:23 +0200
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From: Josselin Poiret <dev@HIDDEN>
* libguile/posix.c (piped_process): Open /dev/null to use as in/out/err
if the corresponding port is not backed by a file descriptor.
---
libguile/posix.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/libguile/posix.c b/libguile/posix.c
index 2969f1f24..f41a99efe 100644
--- a/libguile/posix.c
+++ b/libguile/posix.c
@@ -1558,10 +1558,22 @@ piped_process (pid_t *pid, SCM prog, SCM args, SCM from, SCM to)
if (SCM_OPOUTFPORTP ((port = scm_current_error_port ())))
err = SCM_FPORT_FDES (port);
- if (out == -1 && SCM_OPOUTFPORTP ((port = scm_current_output_port ())))
- out = SCM_FPORT_FDES (port);
- if (in == -1 && SCM_OPINFPORTP ((port = scm_current_input_port ())))
- in = SCM_FPORT_FDES (port);
+ else
+ err = open ("/dev/null", O_WRONLY | O_CLOEXEC);
+ if (out == -1)
+ {
+ if (SCM_OPOUTFPORTP ((port = scm_current_output_port ())))
+ out = SCM_FPORT_FDES (port);
+ else
+ out = open ("/dev/null", O_WRONLY | O_CLOEXEC);
+ }
+ if (in == -1)
+ {
+ if (SCM_OPINFPORTP ((port = scm_current_input_port ())))
+ in = SCM_FPORT_FDES (port);
+ else
+ in = open ("/dev/null", O_RDONLY | O_CLOEXEC);
+ }
}
*pid = do_spawn (exec_file, exec_argv, exec_env, in, out, err, 1);
--
2.39.2
bug-guix@HIDDEN:bug#63024; Package guix.
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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: Greg Hogan <code@HIDDEN>
Subject: Re: bug#63024: Crash during `guix import pypi -r'
References: <CA+3U0ZmV+B3mqut5QVU55Bv_Y8q-dBf8fFekNZAYKra+vFT5GA@HIDDEN>
<87fs8e5rrp.fsf@HIDDEN> <87mt2ks62g.fsf_-_@HIDDEN>
Date: Fri, 05 May 2023 10:54:13 +0200
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=?utf-8?Q?=22's?= message of "Thu, 04 May 2023 13:13:11 +0200")
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Ludovic Court=C3=A8s <ludo@HIDDEN> skribis:
> Ludovic Court=C3=A8s <ludo@HIDDEN> skribis:
>
>> First, the person who wrote =E2=80=98connect*=E2=80=99 *cough* hadn=E2=
=80=99t carefully read the
>> Guile manual, which reads (info "(guile) Ports and File Descriptors"):
>>
>> Note that =E2=80=98select=E2=80=99 may return early for other reasons,=
for example due
>> to pending interrupts.
>>
>> Clearly, =E2=80=98select=E2=80=99 is returning early, so we should check=
that and loop.
>
> Pushed a fix for that in fc6c96c88a0e4ad0b9e48272e5f97ffaa6eec36e.
=E2=80=A6 and updated the =E2=80=98guix=E2=80=99 package in
3c91f4ca490a7ac56dc0aebbca9c4bf4df201877, which should address
=E2=80=98connect*=E2=80=99 timeout issues that were coming from =E2=80=98gu=
ix substitute=E2=80=99.
Ludo=E2=80=99.
bug-guix@HIDDEN:bug#63024; Package guix.
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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: Greg Hogan <code@HIDDEN>
Subject: Re: bug#63024: Crash during `guix import pypi -r'
References: <CA+3U0ZmV+B3mqut5QVU55Bv_Y8q-dBf8fFekNZAYKra+vFT5GA@HIDDEN>
<87fs8e5rrp.fsf@HIDDEN>
Date: Thu, 04 May 2023 13:13:11 +0200
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=?utf-8?Q?s?= message of "Tue, 02 May 2023 23:48:26 +0200")
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Ludovic Court=C3=A8s <ludo@HIDDEN> skribis:
> First, the person who wrote =E2=80=98connect*=E2=80=99 *cough* hadn=E2=80=
=99t carefully read the
> Guile manual, which reads (info "(guile) Ports and File Descriptors"):
>
> Note that =E2=80=98select=E2=80=99 may return early for other reasons, =
for example due
> to pending interrupts.
>
> Clearly, =E2=80=98select=E2=80=99 is returning early, so we should check =
that and loop.
Pushed a fix for that in fc6c96c88a0e4ad0b9e48272e5f97ffaa6eec36e.
Ludo=E2=80=99.
bug-guix@HIDDEN:bug#63024; Package guix.
Full text available.Received: (at 63024) by debbugs.gnu.org; 4 May 2023 11:10:49 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu May 04 07:10:49 2023 Received: from localhost ([127.0.0.1]:48686 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1puWrJ-0005oJ-6E for submit <at> debbugs.gnu.org; Thu, 04 May 2023 07:10:49 -0400 Received: from eggs.gnu.org ([209.51.188.92]:53720) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <ludo@HIDDEN>) id 1puWrD-0005nn-Du; Thu, 04 May 2023 07:10:47 -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 <ludo@HIDDEN>) id 1puWr7-0006DP-Pj; Thu, 04 May 2023 07:10:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:In-Reply-To:Date:References:Subject:To: From; bh=PVup17f5T4GqerAy3BfhvPUnrpxyfzbkEAX8uG3E3YM=; b=nFPvT2M/L22jYzXiU+vm lSpB7VPbebNtoz7OSeDiDM03YyGBrSauJIfl3qtqNZ+0sc8X5joTjZmZIuBSNFaeivXaoClUoNji9 iFqWh8LkdgfJx4GnpXBlNWgC2ckKax1gcJNz76dp39KGYWFDGC2/1jD7umSyyWPKeKa5o0ZukMyba k55Utem4O3YydL/V+MbmXva4884FxW4VFjptD58RRw2Hc032ONz3LpmsukMvPvhj14q6jYzWrWPl4 rZ7xzKmeGv22MlhCk2QmMrnVwLaEaUaE/IutAmFzlaP6OWka49bKKAI2sXqgLtJf0Kvqfi0KsBtIw p8F9I/vRaSjVBg==; Received: from 91-160-117-201.subs.proxad.net ([91.160.117.201] helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <ludo@HIDDEN>) id 1puWr7-0002Qy-Bq; Thu, 04 May 2023 07:10:37 -0400 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN> To: Simon Tournier <zimon.toutoune@HIDDEN> Subject: Re: bug#63024: Crash during `guix import pypi -r' References: <CA+3U0ZmV+B3mqut5QVU55Bv_Y8q-dBf8fFekNZAYKra+vFT5GA@HIDDEN> <87fs8e5rrp.fsf@HIDDEN> <87mt2l4whd.fsf@HIDDEN> <86354d20e6.fsf@HIDDEN> Date: Thu, 04 May 2023 13:10:34 +0200 In-Reply-To: <86354d20e6.fsf@HIDDEN> (Simon Tournier's message of "Wed, 03 May 2023 12:08:01 +0200") Message-ID: <877ctotkr9.fsf_-_@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 63024 Cc: Josselin Poiret <dev@HIDDEN>, 63024 <at> debbugs.gnu.org, Greg Hogan <code@HIDDEN>, 62334 <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 (---) Hi, Simon Tournier <zimon.toutoune@HIDDEN> skribis: > On Wed, 03 May 2023 at 11:04, Ludovic Court=C3=A8s <ludo@HIDDEN> wrote: > >> diff --git a/libguile/posix.c b/libguile/posix.c >> index 3adc743c4..2d55d985c 100644 >> --- a/libguile/posix.c >> +++ b/libguile/posix.c > > Does it mean patch the current Guile or a new release of Guile? It=E2=80=99s a patch against Guile =E2=80=98main=E2=80=99. That gives an i= ncentive to push a new Guile release. Ludo=E2=80=99.
bug-guix@HIDDEN:bug#63024; Package guix.
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From: Simon Tournier <zimon.toutoune@HIDDEN>
To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@HIDDEN>, Josselin Poiret
<dev@HIDDEN>
Subject: Re: bug#62334: bug#63024: Crash during `guix import pypi -r'
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<87fs8e5rrp.fsf@HIDDEN> <87mt2l4whd.fsf@HIDDEN>
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Content preview: Hi Ludo, On Wed, 03 May 2023 at 11:04, Ludovic Courtès wrote:
> diff --git a/libguile/posix.c b/libguile/posix.c > index 3adc743c4..2d55d985c
100644 > --- a/libguile/posix.c > +++ b/libguile/posix.c
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Hi Ludo,
On Wed, 03 May 2023 at 11:04, Ludovic Court=C3=A8s <ludo@HIDDEN> wrote:
> diff --git a/libguile/posix.c b/libguile/posix.c
> index 3adc743c4..2d55d985c 100644
> --- a/libguile/posix.c
> +++ b/libguile/posix.c
Does it mean patch the current Guile or a new release of Guile?
Cheers,
simon
bug-guix@HIDDEN:bug#63024; Package guix.
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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: Josselin Poiret <dev@HIDDEN>
Subject: Re: bug#63024: Crash during `guix import pypi -r'
References: <CA+3U0ZmV+B3mqut5QVU55Bv_Y8q-dBf8fFekNZAYKra+vFT5GA@HIDDEN>
<87fs8e5rrp.fsf@HIDDEN>
Date: Wed, 03 May 2023 11:04:14 +0200
In-Reply-To: <87fs8e5rrp.fsf@HIDDEN> ("Ludovic =?utf-8?Q?Court=C3=A8s=22'?=
=?utf-8?Q?s?= message of "Tue, 02 May 2023 23:48:26 +0200")
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Hey,
Ludovic Court=C3=A8s <ludo@HIDDEN> skribis:
> Looks like we shoudn=E2=80=99t dup(4, 1) in the child process, because 4 =
is the
> other end of our sleep pipe. :-)
How about this patch, Josselin?
Ludo=E2=80=99.
--=-=-=
Content-Type: text/x-patch
Content-Disposition: inline
diff --git a/libguile/posix.c b/libguile/posix.c
index 3adc743c4..2d55d985c 100644
--- a/libguile/posix.c
+++ b/libguile/posix.c
@@ -1388,11 +1388,27 @@ do_spawn (char *exec_file, char **exec_argv, char **exec_env,
}
/* Move the fds out of the way, so that duplicate fds or fds equal
- to 0, 1, 2 don't trample each other */
+ to 0, 1, 2 don't trample each other. Since 'system*' might give
+ us -1 for IN, OUT, or ERR, open /dev/null when that's the case. */
+
+ if (in < 0)
+ posix_spawn_file_actions_addopen (&actions, fd_slot[0],
+ "/dev/null", O_RDONLY | O_CLOEXEC, 0);
+ else
+ posix_spawn_file_actions_adddup2 (&actions, in, fd_slot[0]);
+
+ if (out < 0)
+ posix_spawn_file_actions_addopen (&actions, fd_slot[1],
+ "/dev/null", O_WRONLY | O_CLOEXEC, 0);
+ else
+ posix_spawn_file_actions_adddup2 (&actions, out, fd_slot[1]);
+
+ if (err < 0)
+ posix_spawn_file_actions_addopen (&actions, fd_slot[2],
+ "/dev/null", O_WRONLY | O_CLOEXEC, 0);
+ else
+ posix_spawn_file_actions_adddup2 (&actions, err, fd_slot[2]);
- posix_spawn_file_actions_adddup2 (&actions, in, fd_slot[0]);
- posix_spawn_file_actions_adddup2 (&actions, out, fd_slot[1]);
- posix_spawn_file_actions_adddup2 (&actions, err, fd_slot[2]);
posix_spawn_file_actions_adddup2 (&actions, fd_slot[0], 0);
posix_spawn_file_actions_adddup2 (&actions, fd_slot[1], 1);
posix_spawn_file_actions_adddup2 (&actions, fd_slot[2], 2);
diff --git a/test-suite/tests/posix.test b/test-suite/tests/posix.test
index d5cf47cda..18dad8902 100644
--- a/test-suite/tests/posix.test
+++ b/test-suite/tests/posix.test
@@ -374,7 +374,17 @@
(system* "sh" "-c" "echo bong >&2"))))))))
(and (zero? (status:exit-val status))
- (call-with-input-file file get-string-all)))))
+ (call-with-input-file file get-string-all))))
+
+ (pass-if-equal "https://bugs.gnu.org/63024"
+ 0
+ (if (file-exists? "/proc/self/fd/0") ;on GNU/Linux?
+ (parameterize ((current-output-port (%make-void-port "w0")))
+ (system* "guile" "-c"
+ (object->string
+ '(exit (string=? "/dev/null"
+ (readlink "/proc/self/fd/1"))))))
+ (throw 'unresolved))))
;;
;; spawn
--=-=-=--
bug-guix@HIDDEN:bug#63024; Package guix.
Full text available.Ludovic Courtès <ludo@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Ludovic Courtès <ludo@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.
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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: Greg Hogan <code@HIDDEN>
Subject: Re: bug#63024: Crash during `guix import pypi -r'
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Date: Tue, 02 May 2023 23:48:26 +0200
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Hello!
Greg Hogan <code@HIDDEN> skribis:
> Starting download of /tmp/guix-file.xReGb4
>>From https://web.archive.org/web/20230321140958/https://files.pythonhoste=
d.org/packages/49/01/21337857631a97ab551bb2e3b5691ed6b1b9586011aa6a5355b969=
4a37fa/demon-2.0.6.tar.gz...
> In procedure connect*: Connection timed out
I can very much reproduce the bug with =E2=80=9Cguix import pypi -r cdlib=
=E2=80=9D on
39ba8a10971f15264966823e8696d63c2995df86 and thereabouts. Turns out
it=E2=80=99s a fun story! (Josselin, I=E2=80=99m sure you=E2=80=99ll love =
it.)
First, the person who wrote =E2=80=98connect*=E2=80=99 *cough* hadn=E2=80=
=99t carefully read the
Guile manual, which reads (info "(guile) Ports and File Descriptors"):
Note that =E2=80=98select=E2=80=99 may return early for other reasons, fo=
r example due
to pending interrupts.
Clearly, =E2=80=98select=E2=80=99 is returning early, so we should check th=
at and loop.
So far, so good.
Now, why is =E2=80=98select=E2=80=99 returning immediately? Because the un=
derlying
select(2) call is passed an extra file descriptor, the =E2=80=9Csleep pipe=
=E2=80=9D, as
you can see in =E2=80=98scm_std_select=E2=80=99 in libguile, and it=E2=80=
=99s that file
descriptor, number 3, that=E2=80=99s active at each select(2) call:
--8<---------------cut here---------------start------------->8---
28825 23:06:04 pselect6(15, [3], [14], [14], {tv_sec=3D10, tv_nsec=3D0}, NU=
LL) =3D 1 (in [3], left {tv_sec=3D9, tv_nsec=3D999991063}) <0.000079>
28825 23:06:04 read(3, "A", 1) =3D 1 <0.000044>
--8<---------------cut here---------------end--------------->8---
Why so much activity on that =E2=80=9Csleep pipe=E2=80=9D, you ask? Well, =
once we=E2=80=99ve
filtered the read(3, =E2=80=A6) calls, a pattern appears:
--8<---------------cut here---------------start------------->8---
14335:28825 23:06:04 read(3, "A", 1) =3D 1 <0.000044>
14344:28825 23:06:04 read(3, "r", 1) =3D 1 <0.000121>
14353:28825 23:06:04 read(3, "c", 1) =3D 1 <0.000107>
14362:28825 23:06:04 read(3, "h", 1) =3D 1 <0.000040>
14436:28825 23:06:04 read(3, "i", 1) =3D 1 <0.000049>
14445:28825 23:06:04 read(3, "v", 1) =3D 1 <0.000029>
14454:28825 23:06:04 read(3, "e", 1) =3D 1 <0.000019>
14463:28825 23:06:04 read(3, ":", 1) =3D 1 <0.000017>
14472:28825 23:06:04 read(3, " ", 1) =3D 1 <0.000019>
14481:28825 23:06:04 read(3, " ", 1) =3D 1 <0.000020>
14490:28825 23:06:04 read(3, "/", 1) =3D 1 <0.000019>
14499:28825 23:06:04 read(3, "t", 1) =3D 1 <0.000015>
14508:28825 23:06:04 read(3, "m", 1) =3D 1 <0.000018>
15001:28825 23:06:04 read(3, "p", 1) =3D 1 <0.000015>
15010:28825 23:06:04 read(3, "/", 1) =3D 1 <0.000016>
15019:28825 23:06:04 read(3, "g", 1) =3D 1 <0.000016>
15028:28825 23:06:04 read(3, "u", 1) =3D 1 <0.000015>
15037:28825 23:06:04 read(3, "i", 1) =3D 1 <0.000015>
15046:28825 23:06:04 read(3, "x", 1) =3D 1 <0.000015>
15055:28825 23:06:04 read(3, "-", 1) =3D 1 <0.000015>
--8<---------------cut here---------------end--------------->8---
See? Who=E2=80=99s chatting over our sleep pipe?
--8<---------------cut here---------------start------------->8---
4806:28831 23:06:03 dup2(0, 3) =3D 3 <0.000011>
4807:28831 23:06:03 dup2(3, 0) =3D 0 <0.000011>
4808:28831 23:06:03 dup2(4, 1) =3D 1 <0.000012>
4809:28831 23:06:03 dup2(5, 2) =3D 2 <0.000010>
4810:28831 23:06:03 close(3) =3D 0 <0.000010>
4811:28831 23:06:03 close(4) =3D 0 <0.000011>
4812:28831 23:06:03 close(5) =3D 0 <0.000010>
4813:28831 23:06:03 close(6) =3D 0 <0.000010>
4814:28831 23:06:03 close(7) =3D 0 <0.000010>
4815:28831 23:06:03 close(8) =3D 0 <0.000011>
4816:28831 23:06:03 close(9) =3D 0 <0.000010>
4817:28831 23:06:03 close(10) =3D 0 <0.000010>
4818:28831 23:06:03 close(11) =3D 0 <0.000011>
4819:28831 23:06:03 close(12) =3D 0 <0.000010>
4820:28831 23:06:03 close(13) =3D 0 <0.000010>
4821:28831 23:06:03 close(14) =3D 0 <0.000011>
4822:28831 23:06:03 close(15) =3D -1 EBADF (Bad file desc=
riptor) <0.000011>
4823:28831 23:06:03 prlimit64(0, RLIMIT_NOFILE, NULL, {rlim_cur=3D1024, =
rlim_max=3D4*1024}) =3D 0 <0.000011>
4824:28831 23:06:03 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) =3D 0 <0.00=
0010>
4825:28831 23:06:03 execve("/home/ludo/src/guix/scripts/unzip", ["unzip"=
, "/tmp/guix-file.bmholm", "-d", "/tmp/guix-directory.Ok2DAA", "cdlib-0.2.6=
.dist-info/METADATA"], 0x18a7db0 /* 85 v
[=E2=80=A6]
4938:28831 23:06:03 write(1, "Archive: /tmp/guix-file.bmholm\n", 32) =
=3D 32 <0.000018>
--8<---------------cut here---------------end--------------->8---
=E2=80=98unzip=E2=80=99! And all its friends invoked from (guix import pyp=
i):
--8<---------------cut here---------------start------------->8---
(call-with-temporary-directory
(lambda (dir)
(parameterize ((current-error-port (%make-void-port "rw+"))
(current-output-port (%make-void-port "rw+")))
(if (string=3D? "zip" (file-extension source-url))
(invoke "unzip" archive "-d" dir)
(invoke "tar" "xf" archive "-C" dir)))
=E2=80=A6))
--8<---------------cut here---------------end--------------->8---
Looks like we shoudn=E2=80=99t dup(4, 1) in the child process, because 4 is=
the
other end of our sleep pipe. :-)
The problem exists both in 3.0.9 and Guile =E2=80=98main=E2=80=99. Looks r=
elated to the
file descriptor shuffling code in =E2=80=98do_spawn=E2=80=99. WDYT, Jossel=
in?
Ludo=E2=80=99.
bug-guix@HIDDEN:bug#63024; Package guix.
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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: Greg Hogan <code@HIDDEN>
Subject: Re: bug#63024: Crash during `guix import pypi -r'
References: <CA+3U0ZmV+B3mqut5QVU55Bv_Y8q-dBf8fFekNZAYKra+vFT5GA@HIDDEN>
Date: Tue, 02 May 2023 23:47:24 +0200
In-Reply-To: <CA+3U0ZmV+B3mqut5QVU55Bv_Y8q-dBf8fFekNZAYKra+vFT5GA@HIDDEN>
(Greg Hogan's message of "Tue, 21 Mar 2023 10:17:22 -0400")
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Hello!
Greg Hogan <code@HIDDEN> skribis:
> Starting download of /tmp/guix-file.xReGb4
>>From https://web.archive.org/web/20230321140958/https://files.pythonhoste=
d.org/packages/49/01/21337857631a97ab551bb2e3b5691ed6b1b9586011aa6a5355b969=
4a37fa/demon-2.0.6.tar.gz...
> In procedure connect*: Connection timed out
I can very much reproduce the bug with =E2=80=9Cguix import pypi -r cdlib=
=E2=80=9D on
39ba8a10971f15264966823e8696d63c2995df86 and thereabouts. Turns out
it=E2=80=99s a fun story! (Josselin, I=E2=80=99m sure you=E2=80=99ll love =
it.)
First, the person who wrote =E2=80=98connect*=E2=80=99 *cough* hadn=E2=80=
=99t carefully read the
Guile manual, which reads (info "(guile) Ports and File Descriptors"):
Note that =E2=80=98select=E2=80=99 may return early for other reasons, fo=
r example due
to pending interrupts.
Clearly, =E2=80=98select=E2=80=99 is returning early, so we should check th=
at and loop.
So far, so good.
Now, why is =E2=80=98select=E2=80=99 returning immediately? Because the un=
derlying
select(2) call is passed an extra file descriptor, the =E2=80=9Csleep pipe=
=E2=80=9D, as
you can see in =E2=80=98scm_std_select=E2=80=99 in libguile, and it=E2=80=
=99s that file
descriptor, number 3, that=E2=80=99s active at each select(2) call:
--8<---------------cut here---------------start------------->8---
28825 23:06:04 pselect6(15, [3], [14], [14], {tv_sec=3D10, tv_nsec=3D0}, NU=
LL) =3D 1 (in [3], left {tv_sec=3D9, tv_nsec=3D999991063}) <0.000079>
28825 23:06:04 read(3, "A", 1) =3D 1 <0.000044>
--8<---------------cut here---------------end--------------->8---
Why so much activity on that =E2=80=9Csleep pipe=E2=80=9D, you ask? Well, =
once we=E2=80=99ve
filtered the read(3, =E2=80=A6) calls, a pattern appears:
--8<---------------cut here---------------start------------->8---
14335:28825 23:06:04 read(3, "A", 1) =3D 1 <0.000044>
14344:28825 23:06:04 read(3, "r", 1) =3D 1 <0.000121>
14353:28825 23:06:04 read(3, "c", 1) =3D 1 <0.000107>
14362:28825 23:06:04 read(3, "h", 1) =3D 1 <0.000040>
14436:28825 23:06:04 read(3, "i", 1) =3D 1 <0.000049>
14445:28825 23:06:04 read(3, "v", 1) =3D 1 <0.000029>
14454:28825 23:06:04 read(3, "e", 1) =3D 1 <0.000019>
14463:28825 23:06:04 read(3, ":", 1) =3D 1 <0.000017>
14472:28825 23:06:04 read(3, " ", 1) =3D 1 <0.000019>
14481:28825 23:06:04 read(3, " ", 1) =3D 1 <0.000020>
14490:28825 23:06:04 read(3, "/", 1) =3D 1 <0.000019>
14499:28825 23:06:04 read(3, "t", 1) =3D 1 <0.000015>
14508:28825 23:06:04 read(3, "m", 1) =3D 1 <0.000018>
15001:28825 23:06:04 read(3, "p", 1) =3D 1 <0.000015>
15010:28825 23:06:04 read(3, "/", 1) =3D 1 <0.000016>
15019:28825 23:06:04 read(3, "g", 1) =3D 1 <0.000016>
15028:28825 23:06:04 read(3, "u", 1) =3D 1 <0.000015>
15037:28825 23:06:04 read(3, "i", 1) =3D 1 <0.000015>
15046:28825 23:06:04 read(3, "x", 1) =3D 1 <0.000015>
15055:28825 23:06:04 read(3, "-", 1) =3D 1 <0.000015>
--8<---------------cut here---------------end--------------->8---
See? Who=E2=80=99s chatting over our sleep pipe?
--8<---------------cut here---------------start------------->8---
4806:28831 23:06:03 dup2(0, 3) =3D 3 <0.000011>
4807:28831 23:06:03 dup2(3, 0) =3D 0 <0.000011>
4808:28831 23:06:03 dup2(4, 1) =3D 1 <0.000012>
4809:28831 23:06:03 dup2(5, 2) =3D 2 <0.000010>
4810:28831 23:06:03 close(3) =3D 0 <0.000010>
4811:28831 23:06:03 close(4) =3D 0 <0.000011>
4812:28831 23:06:03 close(5) =3D 0 <0.000010>
4813:28831 23:06:03 close(6) =3D 0 <0.000010>
4814:28831 23:06:03 close(7) =3D 0 <0.000010>
4815:28831 23:06:03 close(8) =3D 0 <0.000011>
4816:28831 23:06:03 close(9) =3D 0 <0.000010>
4817:28831 23:06:03 close(10) =3D 0 <0.000010>
4818:28831 23:06:03 close(11) =3D 0 <0.000011>
4819:28831 23:06:03 close(12) =3D 0 <0.000010>
4820:28831 23:06:03 close(13) =3D 0 <0.000010>
4821:28831 23:06:03 close(14) =3D 0 <0.000011>
4822:28831 23:06:03 close(15) =3D -1 EBADF (Bad file desc=
riptor) <0.000011>
4823:28831 23:06:03 prlimit64(0, RLIMIT_NOFILE, NULL, {rlim_cur=3D1024, =
rlim_max=3D4*1024}) =3D 0 <0.000011>
4824:28831 23:06:03 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) =3D 0 <0.00=
0010>
4825:28831 23:06:03 execve("/home/ludo/src/guix/scripts/unzip", ["unzip"=
, "/tmp/guix-file.bmholm", "-d", "/tmp/guix-directory.Ok2DAA", "cdlib-0.2.6=
.dist-info/METADATA"], 0x18a7db0 /* 85 v
[=E2=80=A6]
4938:28831 23:06:03 write(1, "Archive: /tmp/guix-file.bmholm\n", 32) =
=3D 32 <0.000018>
--8<---------------cut here---------------end--------------->8---
=E2=80=98unzip=E2=80=99! And all its friends invoked from (guix import pyp=
i):
--8<---------------cut here---------------start------------->8---
(call-with-temporary-directory
(lambda (dir)
(parameterize ((current-error-port (%make-void-port "rw+"))
(current-output-port (%make-void-port "rw+")))
(if (string=3D? "zip" (file-extension source-url))
(invoke "unzip" archive "-d" dir)
(invoke "tar" "xf" archive "-C" dir)))
=E2=80=A6))
--8<---------------cut here---------------end--------------->8---
Looks like we shoudn=E2=80=99t dup(4, 1) in the child process, because 4 is=
the
other end of our sleep pipe. :-)
The problem exists both in 3.0.9 and Guile =E2=80=98main=E2=80=99. Looks r=
elated to the
file descriptor shuffling code in =E2=80=98do_spawn=E2=80=99. WDYT, Jossel=
in?
Ludo=E2=80=99.
bug-guix@HIDDEN:bug#63024; Package guix.
Full text available.zimoun <zimon.toutoune@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.zimoun <zimon.toutoune@HIDDEN>
to control <at> debbugs.gnu.org.
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bug-guix@HIDDEN:bug#63024; Package guix.
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Date: Sat, 22 Apr 2023 21:59:03 +0200
Message-Id: <CS3JUDMNK50H.14U373XKCHRIC@HIDDEN>
Subject: Crash during `guix import pypi -r'
From: "Timo Wilken" <guix@HIDDEN>
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The `guix import pypi -r ...' command frequently crashes for me. When
it does, it always crashes on the third download, the one for the
first dependency's source distribution, like so:
--8<---------------cut here---------------start------------->8---
$ guix import pypi -r calcure
Starting download of /tmp/guix-file.7aaMby
From https://files.pythonhosted.org/packages/61/e3/c960430852d4322d42e02421=
690958f47fa2b42aaf4f3befb25c1c8baf21/calcure-2.8.6.tar.gz...
=E2=80=A68.6.tar.gz 42KiB 2.1MiB/s 00:00 [##################] 10=
0.0%
Starting download of /tmp/guix-file.mPnbsd
From https://files.pythonhosted.org/packages/b5/a8/8ba240c952a13b3b2bee6435=
6dc1a1515c496100dc4c9edb6a6648927864/calcure-2.8.6-py3-none-any.whl...
=E2=80=A6y3-none-any.whl 49KiB 1.9MiB/s 00:00 [##################] 10=
0.0%
Starting download of /tmp/guix-file.XzIPz0
From https://files.pythonhosted.org/packages/24/91/77edc7626400922d44019753=
c39e0fd911176ce3f77c3f85ac832d5d70b7/holidays-0.23.tar.gz...
In procedure connect*: Connection timed out
Starting download of /tmp/guix-file.XzIPz0
From https://web.archive.org/web/20230422212928/https://files.pythonhosted.=
org/packages/24/91/77edc7626400922d44019753c39e0fd911176ce3f77c3f85ac832d5d=
70b7/holidays-0.23.tar.gz...
In procedure connect*: Connection timed out
Trying to use Disarchive to assemble /tmp/guix-file.XzIPz0...
could not find its Disarchive specification
failed to download "/tmp/guix-file.XzIPz0" from "https://files.pythonhosted=
.org/packages/24/91/77edc7626400922d44019753c39e0fd911176ce3f77c3f85ac832d5=
d70b7/holidays-0.23.tar.gz"
Backtrace:
10 (primitive-load "/home/timo/.config/guix/current/bin/gu=E2=80=
=A6")
In guix/ui.scm:
2300:7 9 (run-guix . _)
2263:10 8 (run-guix-command _ . _)
In guix/scripts/import.scm:
89:11 7 (guix-import . _)
In ice-9/boot-9.scm:
1752:10 6 (with-exception-handler _ _ #:unwind? _ # _)
In guix/scripts/import/pypi.scm:
97:21 5 (_)
In guix/import/utils.scm:
638:3 4 (recursive-import _ #:repo->guix-package _ #:guix-name . #)
600:31 3 (topological-sort _ #<procedure 7f668bf7a8d0 at guix/i=E2=80=
=A6> =E2=80=A6)
In srfi/srfi-1.scm:
586:17 2 (map1 (("holidays" #f) ("jdatetime" #f) ("ics" #f)))
In guix/import/utils.scm:
630:33 1 (lookup-node "holidays" #f)
In ice-9/boot-9.scm:
1685:16 0 (raise-exception _ #:continuable? _)
ice-9/boot-9.scm:1685:16: In procedure raise-exception:
Wrong number of values returned to continuation (expected 2)
--8<---------------cut here---------------end--------------->8---
However, that URL is valid -- running a manual `guix download'
afterwards works fine:
--8<---------------cut here---------------start------------->8---
$ guix download 'https://files.pythonhosted.org/packages/24/91/77edc7626400=
922d44019753c39e0fd911176ce3f77c3f85ac832d5d70b7/holidays-0.23.tar.gz' =20
Starting download of /tmp/guix-file.vsuTGB
From https://files.pythonhosted.org/packages/24/91/77edc7626400922d44019753=
c39e0fd911176ce3f77c3f85ac832d5d70b7/holidays-0.23.tar.gz...
=E2=80=A6.23.tar.gz 374KiB 2.5MiB/s 00:00 [##################] 100.0%
/gnu/store/jk0v685hhwirl16la349c7i5is640181-holidays-0.23.tar.gz
0yxs1lzbqykl25yf1hcrqjb7qqw69f2zgf7991slnkmk98p1bsxw
--8<---------------cut here---------------end--------------->8---
"Timo Wilken" <guix@HIDDEN>:bug-guix@HIDDEN.
Full text available.bug-guix@HIDDEN:bug#63024; Package guix.
Full text available.
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