[Bug 107754] [CI][DRMTIP] igt at kms_vblank@pipe-a-wait-busy-hang - fail - Failed assertion: __gem_execbuf_wr(fd, execbuf) == 0 / error: -5 != 0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107754

Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #2 from Martin Peres <martin.peres at free.fr> ---
(In reply to Chris Wilson from comment #1)
> Lots of
> 
> <7>[  192.784110] [drm:i915_reset_device [i915]] resetting chip
> <5>[  192.784186] i915 0000:00:06.0: Resetting chip for Manually set wedged
> engine mask = ffffffffffffffff
> <3>[  192.989305] i915 0000:00:06.0: Failed to idle engines, declaring
> wedged!
> 
> abound. Looks like it stemmed from the loss of reseting preempt across a GPU
> reset.
> 
> commit 0051163ab3d8090a08ea2ea5edbb738c0920000a
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Mon Jul 16 13:54:24 2018 +0100
> 
>     drm/i915/execlists: Always clear preempt status on cancelling all
>     
>     On reset/wedging, we cancel all pending replies from the HW and we also
>     want to cancel an outstanding preemption event. Since we use the same
>     function to cancel the pending replies for reset and for a preemption
>     event, we can simply clear the active tracking for all.
>     
>     v2: Keep execlists_user_end() markup for wedging
>     v3: Move assignment to inline to hide the bare assignment.
>     
>     Fixes: 60a943245413 ("drm/i915/execlists: Drop clear_gtiir() on GPU
> reset")
>     Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
>     Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>     Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>     Link:
> https://patchwork.freedesktop.org/patch/msgid/20180716125424.5715-1-
> chris at chris-wilson.co.uk

Thanks, it never happened again in almost 4 months. Let's close it!

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