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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BDW GT3]System hangs while running glxgear with SNA"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77263#c18">Comment # 18</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BDW GT3]System hangs while running glxgear with SNA"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77263">bug 77263</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=77263#c16">comment #16</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=77263#c13">comment #13</a>)
> > One thing to try is
> >
> > commit b12bc035fb8ee40bb382e66604e869b729270189
> > Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
> > 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: <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BDW GT3]System hangs while running glxgear with SNA"
href="show_bug.cgi?id=77263">https://bugs.freedesktop.org/show_bug.cgi?id=77263</a>
> > Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
> >
> > 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.</span >
xf86-video-intel.</pre>
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