[Intel-gfx] [ANNOUNCE] xf86-video-intel 2.10.903

[Jesse Barnes]

On Tue, 23 Mar 2010 15:25:54 -0700
Carl Worth <cworth at cworth.org> wrote:

> On Tue, 23 Mar 2010 12:55:59 +0100, Clemens Eisserer <linuxhippy at gmail.com> wrote:
> > I (and another guy) still get  quite frequent GPU hangs with 2.10.903
> > on my 945GM, as described in:
> > https://bugs.freedesktop.org/show_bug.cgi?id=26810
> 
> Thanks for the reminder.
> 
> If we can figure this out soon, then we can hope to get a fix in.
> 
> For all GPU-hang bugs today, the most helpful thing that any bug
> reporter can do is to run Linux 2.6.34-rc1 or later which will detect
> the GPU hang and record the last batch buffer before the hang to[*]:
> 
> 	/sys/kernel/debug/dri/0/i915_error_state
> 
> Anything from that file other than "no error state collected" is very
> interesting and very helpful for bug reports.
> 
> It would be great to have this information added to the
> how_to_report_bug.html page on intellinuxgraphics.org.
> 
> -Carl
> 
> [*] If you don't have a /sys/kernel/debug/dri directory then ensure that
> debugfs is mounted as follows:
> 
> 	sudo mount -t debugfs debugfs /sys/kernel/debug

FWIW, I think I'm seeing this too.  It goes away if page flipping is
disabled (just set it to false in drmmode_display.c.  I tried fixing
the flip command we submit in the kernel, but that doesn't seem to be
enough to fix this one, still debugging...

-- 
Jesse Barnes, Intel Open Source Technology Center