[Bug 31882] Many multithreaded gui apps randomly deadlock in winex11 driver surface section (arial32.exe, Aquanox, Mahaa demo, Total Commander)

http://bugs.winehq.org/show_bug.cgi?id=31882

--- Comment #47 from Anton Vorobyov  2012-10-26 03:36:06 CDT ---
Today debian testing saw following update:
> libxcb (1.8.1-2) unstable; urgency=low
> - Cherry-pick from upstream 1.9:
> Fix a multi-thread deadlock.  This fixes a deadlock which was seen
> in-the-wild with wine.  It could happen that two threads tried to read
> from the socket at the same time and one of the thread got stuck inside of
> poll()/select().  The fix works by making sure that the writing thread
> doesn't steal the reading thread's reply.  Closes: #689269.
>
> -- Julien Cristau   Mon, 15 Oct 2012 21:13:33 +0200