Re: glibc: causes segfault in Xorg
On Wed, May 04, 2011 at 02:30:35PM +0200, Aurelien Jarno wrote:
> Le 04/05/2011 07:42, Steve M. Robbins a écrit :
> > On Wed, May 04, 2011 at 12:10:48AM -0500, Jonathan Nieder wrote:
> >
> >> Sounds like http://sourceware.org/bugzilla/show_bug.cgi?id=12518
> >> which is fixed (sort of) by commit 0354e355 (2011-04-01).
> >
> > Oh my word. So glibc 2.13 breaks random binaries that happened to
> > incorrectly use memcpy() instead of memmove()? What's wrong with the
> > glibc developers (and Ulrich Drepper in particular)?
> >
> > I'm with Linus on this: let's just revert to the old behaviour. A
> > tiny amount of clock cycles saved isn't worth the instability.
> >
> > Thanks,
> > -Steve
> >
> > P.S. I tried rebuilding glibc myself locally, but gcc also segfaults
> > in the process :-(
> >
>
> Are you sure it is something related? Which gcc version are you using?
> Do you have a backtrace point to the same issue?
>
> I am using this libc version for two months (on a CPU having ssse3
> instruction set), it is also used by other distributions, so I find
> strange it breaks something so common than gcc. For XOrg it can be due
> to the difference in configuration, that's why the problem stayed unnoticed.
>
Any news about that? Which GCC version is affected? Can you please send
us the backtrace?
--
Aurelien Jarno GPG: 1024D/F1BCDB73
aurelien@aurel32.net http://www.aurel32.net
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