From unknown Sun Aug 10 09:12:51 2025 X-Loop: help-debbugs@gnu.org Subject: bug#78738: (signal nil 5) crashes Emacs Resent-From: Daniel Colascione Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 09 Jun 2025 22:34:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 78738 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: 78738@debbugs.gnu.org X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Received: via spool by submit@debbugs.gnu.org id=B.17495084331264 (code B ref -1); Mon, 09 Jun 2025 22:34:02 +0000 Received: (at submit) by debbugs.gnu.org; 9 Jun 2025 22:33:53 +0000 Received: from localhost ([127.0.0.1]:58348 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1uOl3w-0000KK-VQ for submit@debbugs.gnu.org; Mon, 09 Jun 2025 18:33:53 -0400 Received: from lists.gnu.org ([2001:470:142::17]:48038) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1uOl3u-0000JP-HL for submit@debbugs.gnu.org; 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Received: from dancol by dancol.org with local (Exim 4.96) (envelope-from ) id 1uOl2S-00BTA1-1r for bug-gnu-emacs@gnu.org; Mon, 09 Jun 2025 18:32:20 -0400 From: Daniel Colascione User-Agent: mu4e 1.12.10; emacs 31.0.50 Date: Mon, 09 Jun 2025 15:33:38 -0700 Message-ID: MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=2600:3c01:e000:3d8::1; envelope-from=dancol@dancol.org; helo=dancol.org 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, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: 0.9 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.1 (/) (signal nil 5) crashes Emacs From unknown Sun Aug 10 09:12:51 2025 X-Loop: help-debbugs@gnu.org Subject: bug#78738: (signal nil 5) crashes Emacs Resent-From: Pip Cet Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 10 Jun 2025 06:24:04 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 78738 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Daniel Colascione Cc: 78738@debbugs.gnu.org Received: via spool by 78738-submit@debbugs.gnu.org id=B78738.174953658421573 (code B ref 78738); Tue, 10 Jun 2025 06:24:04 +0000 Received: (at 78738) by debbugs.gnu.org; 10 Jun 2025 06:23:04 +0000 Received: from localhost ([127.0.0.1]:60172 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1uOsNz-0005bq-Ay for submit@debbugs.gnu.org; Tue, 10 Jun 2025 02:23:04 -0400 Received: from mail-24416.protonmail.ch ([109.224.244.16]:43005) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1uOsNw-0005aO-Sw for 78738@debbugs.gnu.org; Tue, 10 Jun 2025 02:23:02 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1749536573; x=1749795773; bh=l1ymec6K94cXT86RuxxN9l4gJ7sfawP8OgZpFNpgO+c=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector:List-Unsubscribe:List-Unsubscribe-Post; b=zM+baKjWMSWbTo/aUGXDcoWE3+kZyhdeMU2bSfj5ilvSyMun0fSGxjE444B5TTnuS ZhpS/0meaEiCGgm4dp52zduBOsHnSyO+/hL77lsCWmhF7rJcHu31gvPWlASUyV37i2 EI1lOSC5pIXKIyNw41KYnOqt/5plMfVZ3MpRobBHZ6n+DHbt3pletdMnx2NDy29dRc WRAmxciP+BIuFqZ1iy7flZ1d/ZeBMh83qO3aVtngCvMtnBh3Zmz07m45m/taXXkXTz HrwVHTLpTnl+EhRE0BaufYAitV1vlnUe1xHQk/39Ae31g+NqqobhGtci9eOm0SLFPL lWxfDWaYD3QLA== Date: Tue, 10 Jun 2025 06:22:49 +0000 From: Pip Cet Message-ID: <87sek82k0b.fsf@protonmail.com> In-Reply-To: References: Feedback-ID: 112775352:user:proton X-Pm-Message-ID: fcab569fbce924d9ef3351cd30bad8eefd7993c6 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) "Daniel Colascione" writes: > (signal nil 5) crashes Emacs Good catch! This would fix it, right? diff --git a/src/eval.c b/src/eval.c index fbb881d682d..be6d1a0a9ac 100644 --- a/src/eval.c +++ b/src/eval.c @@ -1888,7 +1888,7 @@ DEFUN ("signal", Fsignal, Ssignal, 2, 2, 0, (Lisp_Object error_symbol, Lisp_Object data) { /* If they call us with nonsensical arguments, produce "peculiar error".= */ - if (NILP (error_symbol) && NILP (data)) + if (NILP (error_symbol) && !CONSP (data)) error_symbol =3D Qerror; signal_or_quit (error_symbol, data, false); eassume (false); Note that there are currently many ways to crash Emacs by executing dodgy Elisp; I think there should be fewer, but others appear to disagree. We specifically added an eassert to crash Emacs when a Lisp function returns invalid data, for example. Pip From unknown Sun Aug 10 09:12:51 2025 X-Loop: help-debbugs@gnu.org Subject: bug#78738: (signal nil 5) crashes Emacs Resent-From: Daniel Colascione Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 10 Jun 2025 06:48:06 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 78738 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Pip Cet Cc: 78738@debbugs.gnu.org Received: via spool by 78738-submit@debbugs.gnu.org id=B78738.1749538036976 (code B ref 78738); Tue, 10 Jun 2025 06:48:06 +0000 Received: (at 78738) by debbugs.gnu.org; 10 Jun 2025 06:47:16 +0000 Received: from localhost ([127.0.0.1]:60199 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1uOslO-0000FJ-Qp for submit@debbugs.gnu.org; Tue, 10 Jun 2025 02:47:16 -0400 Received: from dancol.org ([2600:3c01:e000:3d8::1]:56340) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1uOshd-00088j-8o for 78738@debbugs.gnu.org; Tue, 10 Jun 2025 02:43:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dancol.org; s=x; h=Content-Type:MIME-Version:Message-ID:Date:References:In-Reply-To: Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=79OKFICj7DFRU+TrFBMKxnQlZx0mSnD4rvoaT9MW03Y=; b=Oe2ySmynO3aC+vAF74mqqEPG7k x2/0JgiLY8Syl3i0RAfdrcvbKKhaL1gfiFANJqB+MxDhZRRqZ37z9v1YXb4IREDtMvTaBtrXT1s5R zRhOJIzOdefBarX1f18ibIkRLxjFg7i3pxr2T+qIb/bL1xZ1HOl5/Fcn7if7EUSCREUmVOM0c3IuH hyqMSpD4OEy2hUQnXh1FbhFLSsVcNE5Nyv9qy6Sxl+6UcnuPxx7k3yjweiMkRczKY/Ai+TbR94Cgf i4NfNlPsa3IVkZHiW4RaStDCYwluM5tSO7DsaEi+yDN/P1bvOPE2EDcdwSow7+2zZnDNFFg1iTWDv TlKidGrw==; Received: from dancol by dancol.org with local (Exim 4.96) (envelope-from ) id 1uOsgJ-00BVBq-0Q; Tue, 10 Jun 2025 02:41:59 -0400 From: Daniel Colascione In-Reply-To: <87sek82k0b.fsf@protonmail.com> References: <87sek82k0b.fsf@protonmail.com> User-Agent: mu4e 1.12.10; emacs 31.0.50 Date: Mon, 09 Jun 2025 23:43:17 -0700 Message-ID: MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Pip Cet writes: > "Daniel Colascione" writes: > >> (signal nil 5) crashes Emacs > > Good catch! > > This would fix it, right? > > diff --git a/src/eval.c b/src/eval.c > index fbb881d682d..be6d1a0a9ac 100644 > --- a/src/eval.c > +++ b/src/eval.c > @@ -1888,7 +1888,7 @@ DEFUN ("signal", Fsignal, Ssignal, 2, 2, 0, > (Lisp_Object error_symbol, Lisp_Object data) > { > /* If they call us with nonsensical arguments, produce "peculiar error". */ > - if (NILP (error_symbol) && NILP (data)) > + if (NILP (error_symbol) && !CONSP (data)) > error_symbol = Qerror; > signal_or_quit (error_symbol, data, false); > eassume (false); > > Note that there are currently many ways to crash Emacs by executing > dodgy Elisp; I think there should be fewer, but others appear to > disagree. We specifically added an eassert to crash Emacs when a Lisp > function returns invalid data, for example. Yeah, that should work. The general theme of Fsignal seems to be turning random passed-in stuff into a "peculiar error", so it seems appropriate that it do the same for this specific set of parameters, especially since the nil error_symbol behavior isn't documented. From unknown Sun Aug 10 09:12:51 2025 X-Loop: help-debbugs@gnu.org Subject: bug#78738: (signal nil 5) crashes Emacs Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 10 Jun 2025 11:14:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 78738 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Pip Cet Cc: dancol@dancol.org, 78738@debbugs.gnu.org Received: via spool by 78738-submit@debbugs.gnu.org id=B78738.174955399116652 (code B ref 78738); Tue, 10 Jun 2025 11:14:03 +0000 Received: (at 78738) by debbugs.gnu.org; 10 Jun 2025 11:13:11 +0000 Received: from localhost ([127.0.0.1]:35521 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1uOwul-0004KV-4z for submit@debbugs.gnu.org; Tue, 10 Jun 2025 07:13:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52794) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1uOwui-0004Jg-Dc for 78738@debbugs.gnu.org; Tue, 10 Jun 2025 07:13:08 -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 ) id 1uOwub-0004ph-T7; Tue, 10 Jun 2025 07:13:02 -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=uQXMP2UbzGdruVx7nufn8U9xhI2H8QZJJRPBjIFqtzM=; b=UZkmnVUQj/YH vk6bchZWseFCuSq5ITSurIW777FFrwakprMTT3i+SpzFSGURHzhN0GbO3unroAcuzS7JOnjUmWiSr 27jgZeO75M4a0QdB5p8i/WPP+501Px6iR1iBkXRYtfP6CrrGLlPsPfcv2DsFE6Vh/PMDhnti5aDZN XUemV4hpcaxz97u+m8zyhb9D84Mls/+r43slwEzd2nz65SKQDmoqYy6YCg7b9Wn/OGkS3zwFf5Un/ OSy1gtO/vz2Avz4pSIIImxs8Z1yhGW9koBHjPkKQJxiv3g1/QRstS669y8SgPLegL/r+tu/qecocg em1O9yPK4g/b4rBtWfzTbQ==; Date: Tue, 10 Jun 2025 14:12:58 +0300 Message-Id: <86ikl3g891.fsf@gnu.org> From: Eli Zaretskii In-Reply-To: <87sek82k0b.fsf@protonmail.com> (bug-gnu-emacs@gnu.org) References: <87sek82k0b.fsf@protonmail.com> X-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) > Cc: 78738@debbugs.gnu.org > Date: Tue, 10 Jun 2025 06:22:49 +0000 > From: Pip Cet via "Bug reports for GNU Emacs, > the Swiss army knife of text editors" > > "Daniel Colascione" writes: > > > (signal nil 5) crashes Emacs > > Good catch! > > This would fix it, right? > > diff --git a/src/eval.c b/src/eval.c > index fbb881d682d..be6d1a0a9ac 100644 > --- a/src/eval.c > +++ b/src/eval.c > @@ -1888,7 +1888,7 @@ DEFUN ("signal", Fsignal, Ssignal, 2, 2, 0, > (Lisp_Object error_symbol, Lisp_Object data) > { > /* If they call us with nonsensical arguments, produce "peculiar error". */ > - if (NILP (error_symbol) && NILP (data)) > + if (NILP (error_symbol) && !CONSP (data)) > error_symbol = Qerror; > signal_or_quit (error_symbol, data, false); > eassume (false); Thanks. If this keeps bug#32961 solved, please install on the emacs-30 branch, since this is a regression in Emacs 30. From unknown Sun Aug 10 09:12:51 2025 X-Loop: help-debbugs@gnu.org Subject: bug#78738: (signal nil 5) crashes Emacs Resent-From: Manuel Giraud Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 10 Jun 2025 11:47:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 78738 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Eli Zaretskii Cc: Pip Cet , dancol@dancol.org, 78738@debbugs.gnu.org Received: via spool by 78738-submit@debbugs.gnu.org id=B78738.17495559784788 (code B ref 78738); Tue, 10 Jun 2025 11:47:02 +0000 Received: (at 78738) by debbugs.gnu.org; 10 Jun 2025 11:46:18 +0000 Received: from localhost ([127.0.0.1]:36106 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1uOxQo-0001FA-Eg for submit@debbugs.gnu.org; Tue, 10 Jun 2025 07:46:18 -0400 Received: from ledu-giraud.fr ([51.159.28.247]:27212) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1uOxQk-0001Ew-Dr for 78738@debbugs.gnu.org; Tue, 10 Jun 2025 07:46:15 -0400 DKIM-Signature: v=1; a=ed25519-sha256; c=simple/simple; s=ed25519; bh=LmmLnzhF XMaExM2kAnfWVFyxBYdUEUYSiftOdcfRndk=; h=date:references:in-reply-to: subject:cc:to:from; d=ledu-giraud.fr; b=sTXOzHELKQobwZCDP7iYXZhc0g3wvA L83ECtXUPUUguW9QLNKTq3WZDx9UDlpxXpiZZTs+bbchxVqNl6UbwNAg== DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; s=rsa; bh=LmmLnzhFXMaExM2k AnfWVFyxBYdUEUYSiftOdcfRndk=; h=date:references:in-reply-to:subject: cc:to:from; d=ledu-giraud.fr; b=W+vOmnRU7r1sHVniIpoq5Gyc/ecuhMFtj+NCXp G2gr/4f2WoUkJdcJBKTh5AnSSEP3KnEwlhmvrxdwOdrgEWr+vLdMdVSa+5OZKqq3yx1dlj K8EjijQY7NtRrvg3LHCMTN3OC2nUfwSURjlkYD8Ua8+PfSe51jUnepWw6HHAlZWmA/HRIb K1CEAiOOoelCamm+WL7wFK953PYbf2YJWe4FngzM7iv7jbB2CYZQuGBsUvG2jq4GhpYHm2 is9NI1w8Pb2X8/UoSgkgyK0G3yppt2a84QZgEFQaLBiues3OC8RTgKjc1N6pOjC02DguKo /BCDSyjS5izqLtpAQTgFoDZw== Received: from computer ( [10.1.1.1]) by ledu-giraud.fr (OpenSMTPD) with ESMTPSA id af77b096 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Tue, 10 Jun 2025 13:46:11 +0200 (CEST) From: Manuel Giraud In-Reply-To: <86ikl3g891.fsf@gnu.org> References: <87sek82k0b.fsf@protonmail.com> <86ikl3g891.fsf@gnu.org> Date: Tue, 10 Jun 2025 13:46:10 +0200 Message-ID: <87frg795vh.fsf@ledu-giraud.fr> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Eli Zaretskii writes: >> Cc: 78738@debbugs.gnu.org >> Date: Tue, 10 Jun 2025 06:22:49 +0000 >> From: Pip Cet via "Bug reports for GNU Emacs, >> the Swiss army knife of text editors" >> >> "Daniel Colascione" writes: >> >> > (signal nil 5) crashes Emacs >> >> Good catch! >> >> This would fix it, right? >> >> diff --git a/src/eval.c b/src/eval.c >> index fbb881d682d..be6d1a0a9ac 100644 >> --- a/src/eval.c >> +++ b/src/eval.c >> @@ -1888,7 +1888,7 @@ DEFUN ("signal", Fsignal, Ssignal, 2, 2, 0, >> (Lisp_Object error_symbol, Lisp_Object data) >> { >> /* If they call us with nonsensical arguments, produce "peculiar error". */ >> - if (NILP (error_symbol) && NILP (data)) >> + if (NILP (error_symbol) && !CONSP (data)) >> error_symbol = Qerror; >> signal_or_quit (error_symbol, data, false); >> eassume (false); > > Thanks. If this keeps bug#32961 solved, please install on the > emacs-30 branch, since this is a regression in Emacs 30. On this matter, what is the code path that leads to a call to signal_or_quit with a nil error_symbol parameter? According to the comment at eval.c:1912, it means that the memory is full but I cannot figure out how we can get there. -- Manuel Giraud From unknown Sun Aug 10 09:12:51 2025 MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) X-Loop: help-debbugs@gnu.org From: help-debbugs@gnu.org (GNU bug Tracking System) To: Daniel Colascione Subject: bug#78738: closed (Re: bug#78738: (signal nil 5) crashes Emacs) Message-ID: References: <87cybb3i2x.fsf@protonmail.com> X-Gnu-PR-Message: they-closed 78738 X-Gnu-PR-Package: emacs Reply-To: 78738@debbugs.gnu.org Date: Tue, 10 Jun 2025 12:20:02 +0000 Content-Type: multipart/mixed; boundary="----------=_1749558002-13635-1" This is a multi-part message in MIME format... ------------=_1749558002-13635-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Your bug report #78738: (signal nil 5) crashes Emacs which was filed against the emacs package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 78738@debbugs.gnu.org. --=20 78738: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D78738 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems ------------=_1749558002-13635-1 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at 78738-done) by debbugs.gnu.org; 10 Jun 2025 12:19:26 +0000 Received: from localhost ([127.0.0.1]:36719 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1uOxwr-0003Vf-UW for submit@debbugs.gnu.org; Tue, 10 Jun 2025 08:19:26 -0400 Received: from mail-10628.protonmail.ch ([79.135.106.28]:60753) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1uOxwl-0003VJ-H2 for 78738-done@debbugs.gnu.org; Tue, 10 Jun 2025 08:19:23 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1749557952; x=1749817152; bh=lb9IIrc9ttEuAGgLyBWkSRb+Dm/G2su2pnAL6+Do31U=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector:List-Unsubscribe:List-Unsubscribe-Post; b=VygiCnl0ZaoYdZlIzfQ1Peb6KPpa6SGAyXMG+7GJf/DAMcXijV+ReAWZQmHVYm27R Sdrnj7jiCDXIGBOFRKOK3GOTc+AL/TGwdlJgp37A/GzqyrCm1yhzI4WFlcPe0X6E+2 0R4B3FyWQ6JYMGP2nnxphq1z9GNlt1bTDRIGeVYCcjMIHqvutIbY+cgORAXVU2Or70 kBt/+zJVIPL7HoQY8NuBbXV7NG5Jtque0Na/8YvfJxOgkWwPQVqd/6xZapQ4vZlZy6 SuRvCw7dL2VXVpxYAZjTpXkKuUdbPo02YDTkIKWGp0DP6T+trbEX6IqMawlPgxCAaE kuv+c/9d6Ziwg== Date: Tue, 10 Jun 2025 12:19:07 +0000 To: Manuel Giraud From: Pip Cet Subject: Re: bug#78738: (signal nil 5) crashes Emacs Message-ID: <87cybb3i2x.fsf@protonmail.com> In-Reply-To: <87frg795vh.fsf@ledu-giraud.fr> References: <87sek82k0b.fsf@protonmail.com> <86ikl3g891.fsf@gnu.org> <87frg795vh.fsf@ledu-giraud.fr> Feedback-ID: 112775352:user:proton X-Pm-Message-ID: 2c89eb02544ec69b0484f9bf38fc54dcb79eeab5 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 78738-done Cc: Eli Zaretskii , dancol@dancol.org, 78738-done@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) "Manuel Giraud" writes: > Eli Zaretskii writes: > >>> Cc: 78738@debbugs.gnu.org >>> Date: Tue, 10 Jun 2025 06:22:49 +0000 >>> From: Pip Cet via "Bug reports for GNU Emacs, >>> the Swiss army knife of text editors" >>> >>> "Daniel Colascione" writes: >>> >>> > (signal nil 5) crashes Emacs >>> >>> Good catch! >>> >>> This would fix it, right? >>> >>> diff --git a/src/eval.c b/src/eval.c >>> index fbb881d682d..be6d1a0a9ac 100644 >>> --- a/src/eval.c >>> +++ b/src/eval.c >>> @@ -1888,7 +1888,7 @@ DEFUN ("signal", Fsignal, Ssignal, 2, 2, 0, >>> (Lisp_Object error_symbol, Lisp_Object data) >>> { >>> /* If they call us with nonsensical arguments, produce "peculiar err= or". */ >>> - if (NILP (error_symbol) && NILP (data)) >>> + if (NILP (error_symbol) && !CONSP (data)) >>> error_symbol =3D Qerror; >>> signal_or_quit (error_symbol, data, false); >>> eassume (false); >> >> Thanks. If this keeps bug#32961 solved, please install on the >> emacs-30 branch, since this is a regression in Emacs 30. I've confirmed that that produces a peculiar error, too, as do a few other combinations. So I've pushed this as commit 888f846d377. > On this matter, what is the code path that leads to a call to > signal_or_quit with a nil error_symbol parameter? According to the > comment at eval.c:1912, it means that the memory is full but I cannot > figure out how we can get there. memory_full in alloc.c calls /* This used to call error, but if we've run out of memory, we could get infinite recursion trying to build the string. */ xsignal (Qnil, Vmemory_signal_data); There's another place that does the same for the REL_ALLOC case, in buffer_memory_full. It's questionable whether all the OOM code we have is still being tested, since it's rare to run out of memory nowadays on 64-bit machines. I run into it once in a while when I've broken something else, just like I've never seen a "peculiar error" that wasn't the result of messing up Emacs internals elsewhere. Pip ------------=_1749558002-13635-1 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at submit) by debbugs.gnu.org; 9 Jun 2025 22:33:53 +0000 Received: from localhost ([127.0.0.1]:58348 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1uOl3w-0000KK-VQ for submit@debbugs.gnu.org; Mon, 09 Jun 2025 18:33:53 -0400 Received: from lists.gnu.org ([2001:470:142::17]:48038) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1uOl3u-0000JP-HL for submit@debbugs.gnu.org; Mon, 09 Jun 2025 18:33:51 -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 ) id 1uOl3n-0006fw-BR for bug-gnu-emacs@gnu.org; Mon, 09 Jun 2025 18:33:44 -0400 Received: from dancol.org ([2600:3c01:e000:3d8::1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uOl3l-00076X-8c for bug-gnu-emacs@gnu.org; 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emacs 31.0.50 Date: Mon, 09 Jun 2025 15:33:38 -0700 Message-ID: MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=2600:3c01:e000:3d8::1; envelope-from=dancol@dancol.org; helo=dancol.org 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, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: 0.9 (/) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.1 (/) (signal nil 5) crashes Emacs ------------=_1749558002-13635-1-- From unknown Sun Aug 10 09:12:51 2025 X-Loop: help-debbugs@gnu.org Subject: bug#78738: (signal nil 5) crashes Emacs Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 10 Jun 2025 12:26:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 78738 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Manuel Giraud Cc: pipcet@protonmail.com, dancol@dancol.org, 78738@debbugs.gnu.org Received: via spool by 78738-submit@debbugs.gnu.org id=B78738.174955832715567 (code B ref 78738); Tue, 10 Jun 2025 12:26:02 +0000 Received: (at 78738) by debbugs.gnu.org; 10 Jun 2025 12:25:27 +0000 Received: from localhost ([127.0.0.1]:36838 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1uOy2g-000431-Lm for submit@debbugs.gnu.org; Tue, 10 Jun 2025 08:25:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56014) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1uOy2c-00041y-KY for 78738@debbugs.gnu.org; Tue, 10 Jun 2025 08:25:24 -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 ) id 1uOy2U-0007Ku-Rh; Tue, 10 Jun 2025 08:25:15 -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=9em1XU32mJWTb9bzTQ6wBE1IVyIpBMetJZkbCvuUEHM=; b=kTEixSU6ER8m HTYwrE3MIOT1Z0dxzTTUk/IqJYuWi0ahlYX3NsJ7IG8uVg0noGlQjcGTKq9jlB/kvEAharQzxT9rR hD5cwu/i3gj/MH+n6dqIKmeVbCxM5h6Dm+8J+43F/Xn5sCyunY8V/G/fKWAaA0nsAS2luNIs/MdrH 7dfM7g/VVDICbacvrl95dmcbQ2Ikt5e1+VBnSLxSZ00Jv7g4FNQrJZB6IP36dIR5twM1h69i7KegU RHpvYUD64DzRuejLO9FEAHGgYDc7wPQC0IfznL9t04FfiChr+cPiXHdaHkBbhbKk12M6KxPgP2SPT NM50NfpqlP2lptI3hJ9wiA==; Date: Tue, 10 Jun 2025 15:25:11 +0300 Message-Id: <868qlzg4wo.fsf@gnu.org> From: Eli Zaretskii In-Reply-To: <87frg795vh.fsf@ledu-giraud.fr> (message from Manuel Giraud on Tue, 10 Jun 2025 13:46:10 +0200) References: <87sek82k0b.fsf@protonmail.com> <86ikl3g891.fsf@gnu.org> <87frg795vh.fsf@ledu-giraud.fr> X-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) > From: Manuel Giraud > Cc: Pip Cet , dancol@dancol.org, 78738@debbugs.gnu.org > Date: Tue, 10 Jun 2025 13:46:10 +0200 > > On this matter, what is the code path that leads to a call to > signal_or_quit with a nil error_symbol parameter? According to the > comment at eval.c:1912, it means that the memory is full but I cannot > figure out how we can get there. void memory_full (size_t nbytes) { if (!initialized) fatal ("memory exhausted"); [...] xsignal (Qnil, Vmemory_signal_data); } From unknown Sun Aug 10 09:12:51 2025 X-Loop: help-debbugs@gnu.org Subject: bug#78738: (signal nil 5) crashes Emacs Resent-From: Manuel Giraud Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 10 Jun 2025 12:31:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 78738 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Pip Cet Cc: Eli Zaretskii , dancol@dancol.org, 78738-done@debbugs.gnu.org Received: via spool by 78738-done@debbugs.gnu.org id=D78738.174955860816318 (code D ref 78738); Tue, 10 Jun 2025 12:31:01 +0000 Received: (at 78738-done) by debbugs.gnu.org; 10 Jun 2025 12:30:08 +0000 Received: from localhost ([127.0.0.1]:36874 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1uOy7E-0004F8-3N for submit@debbugs.gnu.org; Tue, 10 Jun 2025 08:30:08 -0400 Received: from ledu-giraud.fr ([51.159.28.247]:48094) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1uOy79-0004Ec-Da for 78738-done@debbugs.gnu.org; Tue, 10 Jun 2025 08:30:05 -0400 DKIM-Signature: v=1; a=ed25519-sha256; c=simple/simple; s=ed25519; bh=Do79Zwb/ 93LYSbAZcjHGrAL4fCyk8tSzGfcK5GT//Zc=; h=date:references:in-reply-to: subject:cc:to:from; d=ledu-giraud.fr; b=ZNHWBCaD8gVIA+hcjU0ZxU4IoZ4ePs GuMelVsqevQoXScZ7Z7jECMu+s8QuZoVbumS2RXiquBQ1k5RgIC8nBDQ== DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; s=rsa; bh=Do79Zwb/93LYSbAZ cjHGrAL4fCyk8tSzGfcK5GT//Zc=; h=date:references:in-reply-to:subject: cc:to:from; d=ledu-giraud.fr; b=aeUTl4G0IUguXFvKsrJhlU+f8V73ZQY+I2DtSK sB0rR/K+NCSeT36YeEaW8AWNnAMpm6kXNTvMcs26uux4dliuFxGnt3WjKdujcVofsnfHXF XjmPI7RwckcDY7k63GxunZhVWT91R60FDZMYYkvJWaEcKqeTJxZ+AfqBzqR5zfX0ZLUvJU Ioy68WbJtrkjabukC8ueQ2HJT7ShK6Zvt5w/cK3i6LJNPQU2V+PlXw0JsJHf9E56wAyHp9 OGcEY+6MGaABnhdtv+4xN68YgUQQu7k8MITuhVqKNgXXHGe0YLUHQx5AO/pWZQw/n6ByKd a95mI9Wha4A0Rr2mgBQSY6nQ== Received: from computer ( [10.1.1.1]) by ledu-giraud.fr (OpenSMTPD) with ESMTPSA id a14b85e9 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Tue, 10 Jun 2025 14:30:01 +0200 (CEST) From: Manuel Giraud In-Reply-To: <87cybb3i2x.fsf@protonmail.com> References: <87sek82k0b.fsf@protonmail.com> <86ikl3g891.fsf@gnu.org> <87frg795vh.fsf@ledu-giraud.fr> <87cybb3i2x.fsf@protonmail.com> Date: Tue, 10 Jun 2025 14:30:00 +0200 Message-ID: <87y0tz7p9z.fsf@ledu-giraud.fr> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Pip Cet writes: > "Manuel Giraud" writes: > >> Eli Zaretskii writes: >> >>>> Cc: 78738@debbugs.gnu.org >>>> Date: Tue, 10 Jun 2025 06:22:49 +0000 >>>> From: Pip Cet via "Bug reports for GNU Emacs, >>>> the Swiss army knife of text editors" >>>> >>>> "Daniel Colascione" writes: >>>> >>>> > (signal nil 5) crashes Emacs >>>> >>>> Good catch! >>>> >>>> This would fix it, right? >>>> >>>> diff --git a/src/eval.c b/src/eval.c >>>> index fbb881d682d..be6d1a0a9ac 100644 >>>> --- a/src/eval.c >>>> +++ b/src/eval.c >>>> @@ -1888,7 +1888,7 @@ DEFUN ("signal", Fsignal, Ssignal, 2, 2, 0, >>>> (Lisp_Object error_symbol, Lisp_Object data) >>>> { >>>> /* If they call us with nonsensical arguments, produce "peculiar er= ror". */ >>>> - if (NILP (error_symbol) && NILP (data)) >>>> + if (NILP (error_symbol) && !CONSP (data)) >>>> error_symbol =3D Qerror; >>>> signal_or_quit (error_symbol, data, false); >>>> eassume (false); >>> >>> Thanks. If this keeps bug#32961 solved, please install on the >>> emacs-30 branch, since this is a regression in Emacs 30. > > I've confirmed that that produces a peculiar error, too, as do a few > other combinations. > > So I've pushed this as commit 888f846d377. > >> On this matter, what is the code path that leads to a call to >> signal_or_quit with a nil error_symbol parameter? According to the >> comment at eval.c:1912, it means that the memory is full but I cannot >> figure out how we can get there. > > memory_full in alloc.c calls > > /* This used to call error, but if we've run out of memory, we could > get infinite recursion trying to build the string. */ > xsignal (Qnil, Vmemory_signal_data); Thank you both! I did not grep this xsignal =F0=9F=98=85 --=20 Manuel Giraud From unknown Sun Aug 10 09:12:51 2025 X-Loop: help-debbugs@gnu.org Subject: bug#78738: (signal nil 5) crashes Emacs Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 10 Jun 2025 13:20:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 78738 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Pip Cet Cc: dancol@dancol.org, 78738@debbugs.gnu.org, manuel@ledu-giraud.fr Received: via spool by 78738-submit@debbugs.gnu.org id=B78738.174956159729484 (code B ref 78738); Tue, 10 Jun 2025 13:20:03 +0000 Received: (at 78738) by debbugs.gnu.org; 10 Jun 2025 13:19:57 +0000 Received: from localhost ([127.0.0.1]:37677 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1uOytO-0007f6-QR for submit@debbugs.gnu.org; Tue, 10 Jun 2025 09:19:56 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35514) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1uOytM-0007eF-2i for 78738@debbugs.gnu.org; Tue, 10 Jun 2025 09:19:52 -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 ) id 1uOytB-0005hC-T2; Tue, 10 Jun 2025 09:19:43 -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=bThOgoSvxaMtAWu3o02/oJEaUGX3SqvKWbWHfnsx3/g=; b=cWsNFvgK7uNl 3DechnmFEqF8z8EqqFtImhyZDoNEterwA1uLiGfz3b1JFm1egmaFfwOY4/bafrJihEwr03OGcypyE 48htNiOCCIl4rNZwurIV/T/rYp1vzMDnD2fnqLIzkRDiQF9vMhtBxDHv1h0WqLf2pzD7ntTHLnE8W MYnMQZzQwzEZ5UbwBh6pKp+6VHMjJK2CIg+u5IK+BSo4XETzS4MEMDOmNrD407g/PDmubeAfAWAP/ kx/oCTBT1S/Jngs7D6BLURiYpRa2GUlzTzqgTqrFWSm0Zi2QBYUIIEJtqEaxZD0jRFhs3aoqLLAnW 2IBylFKRBGpjEy1Znwak8g==; Date: Tue, 10 Jun 2025 16:19:38 +0300 Message-Id: <865xh3g2dx.fsf@gnu.org> From: Eli Zaretskii In-Reply-To: <87cybb3i2x.fsf@protonmail.com> (message from Pip Cet on Tue, 10 Jun 2025 12:19:07 +0000) References: <87sek82k0b.fsf@protonmail.com> <86ikl3g891.fsf@gnu.org> <87frg795vh.fsf@ledu-giraud.fr> <87cybb3i2x.fsf@protonmail.com> X-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) > Date: Tue, 10 Jun 2025 12:19:07 +0000 > From: Pip Cet > Cc: Eli Zaretskii , dancol@dancol.org, 78738-done@debbugs.gnu.org > > It's questionable whether all the OOM code we have is still being > tested, since it's rare to run out of memory nowadays on 64-bit > machines. My builds are 32-bit, so I do see it (rarely). > I run into it once in a while when I've broken something else, just > like I've never seen a "peculiar error" that wasn't the result of > messing up Emacs internals elsewhere. Some users report very large memory footprints of the Emacs process they sometimes see in a long-running session. Keep in mind that "memory-full" doesn't mean we exceed the huge 64-bit address space, just the total VM of the system, which is still possible, even in a 64-bit build, especially if the amount of swap is configured sub-optimally.