[Bug 110039] [CI][SHARDS] igt at i915_selftest@mock_fence - dmesg-fail - Fence with future expiration (\d+ jiffies) already signaled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110039

--- Comment #4 from Martin Peres <martin.peres at free.fr> ---
(In reply to Chris Wilson from comment #3)
> And hopefully swept back under the carpet with,
> 
> commit d2eeaf2bc04941444bfd52285b6183d6c84c262c (HEAD ->
> drm-intel-next-queued, drm-intel/drm-intel-next-queued)
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Wed Mar 13 20:59:44 2019 +0000
> 
>     drm/i915/selftests: Disable preemption while setting up fence-timers
>     
>     The impossible happens and a future fence expired while we were still
>     initialising. The probable cause is that the test was preempted and we
>     lost our scheduler cpu slice. Disable preemption during this test to
>     rule out preemption as a source of timer disruption.
>     
>     References: https://bugs.freedesktop.org/show_bug.cgi?id=110039
>     Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
>     Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>     Link:
> https://patchwork.freedesktop.org/patch/msgid/20190313205944.5768-1-
> chris at chris-wilson.co.uk

Thanks, it never happened again!

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