[Bug 106560] [CI] igt at drv_selftest@live_hangcheck - igt_reset_engines failed with error

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106560

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

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

--- Comment #8 from Martin Peres <martin.peres at free.fr> ---
(In reply to Chris Wilson from comment #7)
> commit a99b32a6fff7e482a267c72e565c8c410ce793d7 (HEAD ->
> drm-intel-next-queued, drm-intel/drm-intel-next-queued)
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Tue Aug 14 18:18:57 2018 +0100
> 
>     drm/i915: Clear stop-engine for a pardoned reset
>     
>     If we pardon a per-engine reset, we may leave the STOP_RING bit asserted
>     in RING_MI_MODE resulting in the engine hanging. Unconditionally clear
>     it on the per-engine exit path as we know that either we skipped the
>     reset and so need the cancellation, or the reset was successful and the
>     cancellation is a no-op, or there was an error and we will follow up
>     with a full-reset or wedging (both of which will stop the engines again
>     as required).
>     
>     Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107188
>     Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106560
>     Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
>     Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
>     Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
>     Link:
> https://patchwork.freedesktop.org/patch/msgid/20180814171857.24673-1-
> chris at chris-wilson.co.uk
> 
> 
> Please note that the CI run for this patch indicated we have yet another
> cause for hangs here. When that is detected please do file a fresh bug so we
> don't have the debug logs confused.

That seems to have done the trick for this particular issue. Closing now :)

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