[xml/sgml-pkgs] Bug#742258: libxml2: [wheezy] race condition causing crash in gnome-shell

Josselin Mouette joss at debian.org
Fri Mar 21 11:21:35 UTC 2014

Package: libxml2
Version: 2.8.0+dfsg1-7+nmu2
Severity: important
Tags: wheezy patch


I have found the probable cause of a number hard-to-reproduce,
hard-to-debug gnome-shell failures on wheezy, especially when a11y is
The problem is identical to LP#962604 but the crash can happen in a wide
number of libxml2 functions.

It is caused by a race condition in libxml2 which can occur only when
some functions are used several times from different threads.

The bug is fixed upstream:
I’m attaching the patch.

Since it’s mostly about GNOME, I can ask the release team and do the
upload myself if you want.

Thanks for considering.
.''`.      Josselin Mouette
: :' :
`. `'
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