(21.4a-6ubuntu1): Unexpected crash when closing a text buffer

[David Marín]

I was about to close a buffer and... crash!

[Ondřej Surý (ondrej)]

I can confirm that, adding another crash report, emacs crashes with signal 11 on exit (^x^c).

[Tollef Fog Heen (tfheen)]

We need this fixed for edgy and I can reproduce it.

[Tollef Fog Heen (tfheen)]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Format: 1.7
Date: Fri, 15 Sep 2006 09:56:31 +0200
Source: emacs21
Binary: emacs21-el emacs21-common emacs21-nox emacs21-bin-common emacs21
Architecture: source
Version: 21.4a-6ubuntu2
Distribution: edgy
Urgency: low
Maintainer: Rob Browning <email address hidden>
Changed-By: Tollef Fog Heen <email address hidden>
Description:
 emacs21 - The GNU Emacs editor
 emacs21-bin-common - The GNU Emacs editor's shared, architecture dependent files
 emacs21-common - The GNU Emacs editor's shared, architecture independent infrastru
 emacs21-el - GNU Emacs LISP (.el) files
 emacs21-nox - The GNU Emacs editor (without X support)
Changes:
 emacs21 (21.4a-6ubuntu2) edgy; urgency=low
 .
   * Add -fno-stack-protector to CFLAGS to stop crashing so much.
     Malone: #56782
Files:
 21ec5eaa278137c482348920f5bea3f3 992 editors optional emacs21_21.4a-6ubuntu2.dsc
 633750f936d5c4c101147de49d6afc1b 150527 editors optional emacs21_21.4a-6ubuntu2.diff.gz

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[Dave Love (fx-gnu)]

I've just started seeing continual crashes of Emacs,
but 21.4a-6ubuntu2 doesn't fix them. I'm building
a debug version now to try to fix it, but can you
tell me what this undocumented -fno-stack-protector flag does, and what you think
the problem is? Is it due to a kernel change
like the Redhat stuff that was never adequately
explained? I ask because I'm probably as expert
as anyone on Emacs dumping and allocation and
I need to restore a working Emacs quickly, so
I'll work on sorting it out.

I'm not seeing the same problem on my edgy
laptop as I am on a very similar system on my
desktop. Also, Emacs is unusable under X in edgy
anyway without fixing the font paths per my
patch under #63408, sigh...