Re: [Bug #15004] i915: *ERROR* Execbuf while wedged

Chris Wilson
2010-01-27T18:08:06Z

On Wed, 27 Jan 2010 10:01:44 -0800, Jesse Barnes <jbarnes-Y1mF5jBUw70BENJcbMCuUQ@public.gmane.org> wrote:
> On Sun, 24 Jan 2010 23:23:11 +0100 (CET)
> "Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org> wrote:
>
> > This message has been generated automatically as a part of a report
> > of regressions introduced between 2.6.31 and 2.6.32.
> >
> > The following bug entry is on the current list of known regressions
> > introduced between 2.6.31 and 2.6.32. Please verify if it still should
> > be listed and let me know (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15004
> > Subject : i915: *ERROR* Execbuf while wedged
> > Submitter : tomas m <tmezzadra-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > Date : 2010-01-07 18:53 (18 days old)
>
> Chris, any ideas about this one? I remember seeing a few like this
> that have been bisected to 2D driver changes recently...

Yes, this is almost certainly our userspace driver sending the GPU into a
spin. And no, we haven't identified the cause yet, there have a been a lot
of conflicting reports and guesswork, with very little information.

--
Chris Wilson, Intel Open Source Technology Centre