Bug#486655: libgl1-mesa-dri: randomly crashes xmoto on desktop change

[Vladimir Z <vladimir.zhuravlev@utoronto.ca>]

Package: libgl1-mesa-dri
Version: 7.0.3-2
Severity: normal

Xmoto crashes on my system randomly on desktop change(when I change between different desktops).
Video is intel X3100, xserver-xorg-video-intel.

$ xmoto
xmoto: bufmgr_fake.c:1398: bm_fake_NotifyContendedLockTake: Assertion `bmTestFence(intel, block->fence)' failed.
Aborted

I think this assert is from mesa-dri. 

best, 
Vladimir

-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.25.4 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages libgl1-mesa-dri depends on:
ii  libc6                         2.7-10     GNU C Library: Shared libraries
ii  libdrm2                       2.3.0-4    Userspace interface to kernel DRM 
ii  libexpat1                     1.95.8-4   XML parsing C library - runtime li
ii  libgl1-mesa-glx               7.0.3-2    A free implementation of the OpenG

libgl1-mesa-dri recommends no packages.

-- no debconf information