On Wed, Feb 01, 2012 at 10:23:05PM -0200, Eugeni Dodonov wrote:
> On Wed, Feb 1, 2012 at 19:39, Chris Wilson <[email protected]> wrote:
>
> > On Wed, 1 Feb 2012 22:26:45 +0100, Daniel Vetter <[email protected]>
> > wrote:
> > > Chris Wilson and me have again stared at funny error states and it's
> > > been pretty clear from the start that something was seriously amiss.
> > > The seqnos last seen by the cpu were a few hundred behind those that
> > > the gpu could have possibly emitted last before it died ...
> > >
> > > Chris now tracked it down (hopefully, definit verdict's still out),
> > > but in hindsight we'd have found the bug by simply dumping the cpu
> > > side tracking of the ring head and tail registers.
> > >
> > > Fix this and prevent an identical time-waster in the future.
> > >
> > > Because the hangs always involved semaphores in one way or another,
> > > we've tried to dump the mbox registers, but couldn't find any
> > > inconsistencies. Still, dump them too.
> > >
> > > Signed-Off-by: Daniel Vetter <[email protected]>
> > Reviewed-and-wanted-by: Chris Wilson <[email protected]>
>
> Yeah!! Thanks a lot for that.
>
> Reviewed-by: Eugeni Dodonov <[email protected]>
Queued for -next, thanks for the review.
-Daniel
--
Daniel Vetter
Mail: [email protected]
Mobile: +41 (0)79 365 57 48
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