On 2008-11-17 09:30 +0100, Tim Connors wrote:

> Package: emacs22
> Version: 22.2+2-5
> Severity: important
>
> In a buffer with UTF-8 (Finnish) characters, when I try to kill a
> section of text, I get the following assertion failure:
>
>> emacs .followup
> Locking assertion failure.  Backtrace:
> #0 /usr/lib/libxcb-xlib.so.0 [0x7f151b16197c]
> #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x15) [0x7f151b161a15]
> #2 /usr/lib/libX11.so.6 [0x7f151c024420]
> #3 /usr/lib/libX11.so.6(XSync+0x19) [0x7f151c018c99]
> #4 emacs [0x48ada8]
> #5 emacs [0x48ae62]
> #6 emacs [0x48b44d]
> #7 emacs [0x48b49d]
> #8 /usr/lib/libX11.so.6(_XError+0xcc) [0x7f151c01d35c]
> #9 /usr/lib/libX11.so.6 [0x7f151c024d4f]
> #10 /usr/lib/libX11.so.6(_XReply+0x18a) [0x7f151c0250fa]
> #11 /usr/lib/libX11.so.6(XSync+0x63) [0x7f151c018ce3]
> #12 emacs [0x48ada8]
> #13 emacs [0x4a289c]
> #14 emacs [0x527887]
> #15 emacs [0x5555b5]
> #16 emacs [0x529955]
> #17 emacs [0x5275ca]
> #18 emacs [0x5555b5]
> #19 emacs [0x529955]

Can you send a file which triggers this bug?  So far I have not been
able to reproduce it.

> If the fix to bug 481745 has been reverted, I tried setting
> LIBXCB_ALLOW_SLOPPY_LOCK as per
> http://cvs.fedoraproject.org/viewvc/devel/libxcb/libxcb-1.1-sloppy-lock.patch?view=auto&revision=1.1
> but that didn't change anything, leading me to believe this may be a
> bug in emacs22 rather than in libxcb-xlib0 (but feel to reassign).
>
> But see also: https://bugs.launchpad.net/mandriva/+source/libxcb/+bug/185311
> http://translate.google.com/translate?u=http://forum.ubuntu-fi.org/index.php?action=profile%3Bu=4000%3Bsa=showPosts
> (untranslated page 
> http://forum.ubuntu-fi.org/index.php?action=profile;u=4000;sa=showPosts )

I'd say this is a problem in libxcb if it affects so many other programs
as well as Emacs.

Regards,
        Sven



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