Ubuntu
xserver-xorg-video-intel package

  1. Bug #541511
  2. Comment #19

Comment 19 for bug 541511

Revision history for this message
In , Daniel-ffwll (daniel-ffwll) wrote :

> --- Comment #17 from <email address hidden> 2010-03-23 12:18:05 PST ---
> (In reply to comment #16)
> > dmesg summary: Complaints about chipset flush timeout
>
> While scanning over relevant code, I also noticed this: It should probably be
> canary_gtt_read, canary_cpu_read in drivers/char/agp/intel-gtt.c:978 instead of
> canary_cpu_read, canary_cpu_read.

Yep, you're right. Fixed in my local version.

I've looked at your dmesg and the chipset flush clearly doesn't work for
your hw. Can you please try to hang the gpu again (with my latest patch)
and then capture i915_error_state from <debugfs>/dri/0. Just to make sure
that your gpu is crashing due to a cache coherency bug and not due to
something else (rather unlikely). Meanwhile I try to come up with a new
idea to fix your problem.