[Bug 77263] [BDW GT3]System hangs while running glxgear with SNA

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77263

--- Comment #18 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to comment #16)
> (In reply to comment #13)
> > One thing to try is
> > 
> > commit b12bc035fb8ee40bb382e66604e869b729270189
> > Author: Chris Wilson <chris at chris-wilson.co.uk>
> > Date:   Tue Apr 22 12:30:29 2014 +0100
> > 
> >     sna: Add a DBG aide to disable hardware execution
> >     
> >     Submit a dummy batch so that we still build, submit batches and perform
> >     relocations, but do not actually invoke the GPU. This can be useful when
> >     looking at mysterious hardware hangs.
> >     
> >     References: https://bugs.freedesktop.org/show_bug.cgi?id=77263
> >     Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > 
> > and
> > 
> > diff --git a/src/sna/kgem.c b/src/sna/kgem.c
> > index 82199a1..68b0917 100644
> > --- a/src/sna/kgem.c
> > +++ b/src/sna/kgem.c
> > @@ -61,7 +61,7 @@ static struct kgem_bo *
> >  search_snoop_cache(struct kgem *kgem, unsigned int num_pages, unsigned
> > flags);
> >  
> >  #define DBG_NO_HW 0
> > -#define DBG_NO_EXEC 0
> > +#define DBG_NO_EXEC 1
> >  #define DBG_NO_TILING 0
> >  #define DBG_NO_CACHE 0
> >  #define DBG_NO_CACHE_LEVEL 0
> > 
> > That will isolate the fault in either the driver or the hardware.
> 
> 
> Sorry, I did't find this commit in -nightly -fixes and -next-queued branch,
> could you tell me, which branch this commit in? Thanks.

xf86-video-intel.

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