GNU bug report logs - #11144
temacs segfaults w/MALLOC_PERTURB_!=0 when compiling with gcc-4.8.0

Previous Next

Full log

Message #24 received at 11144 <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Jim Meyering <jim <at> meyering.net>
Cc: 11144 <at> debbugs.gnu.org
Subject: Re: bootstrap w/gcc-4.8.0 + nonzero MALLOC_PERTURB_ -> ./temacs
	segfault
Date: Tue, 10 Apr 2012 09:36:53 -0700

On 04/10/2012 02:13 AM, Jim Meyering wrote:

> This has struck again, now using gcc version 4.8.0 20120406
> I've reopened the bug.

This is in an area of Emacs code that is sensitive to
minor details in how the C compiler works, and it's
quite possible that the bug is in Emacs, not in GCC.
Certainly I've seen similar tracebacks which came
from Emacs bugs.

If you're bisecting, you might want to look at Emacs
trunk bzr 107789, which I committed three days ago, and
which affects this part of the code.  I don't offhand
see why it would cause the problem (though perhaps
it might *fix* the problem :-).

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.