There seems to be a fix for this problem. See the bottom of the upstream bug report:
https://bugs.freedesktop.org/show_bug.cgi?id=21470
Patch for the kernel can be found here:
http://lists.freedesktop.org/archives/intel-gfx/2009-September/004122.html
or
http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git;a=commit;h=e517a5e97080bbe52857bd0d7df9b66602d53c4d
There seems to be a fix for this problem. See the bottom of the upstream bug report:
https:/ /bugs.freedeskt op.org/ show_bug. cgi?id= 21470
Patch for the kernel can be found here:
http:// lists.freedeskt op.org/ archives/ intel-gfx/ 2009-September/ 004122. html
or
http:// git.kernel. org/?p= linux/kernel/ git/next/ linux-next. git;a=commit; h=e517a5e97080b be52857bd0d7df9 b66602d53c4d