[Bug 110519] [CI][SHARDS] igt at gem_exec_schedule@semaphore-resolve - fail - Failed assertion: !"GPU hung"
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Tue Jul 2 11:42:52 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=110519
--- Comment #8 from Martin Peres <martin.peres at free.fr> ---
(In reply to Chris Wilson from comment #7)
> commit 8ee36e048c98d4015804a23f884be2576f778a93 (HEAD ->
> drm-intel-next-queued, drm-intel/for-linux-next,
> drm-intel/drm-intel-next-queued)
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date: Thu Jun 20 15:20:52 2019 +0100
>
> drm/i915/execlists: Minimalistic timeslicing
>
> If we have multiple contexts of equal priority pending execution,
> activate a timer to demote the currently executing context in favour of
> the next in the queue when that timeslice expires. This enforces
> fairness between contexts (so long as they allow preemption -- forced
> preemption, in the future, will kick those who do not obey) and allows
> us to avoid userspace blocking forward progress with e.g. unbounded
> MI_SEMAPHORE_WAIT.
>
> For the starting point here, we use the jiffie as our timeslice so that
> we should be reasonably efficient wrt frequent CPU wakeups.
>
> Testcase: igt/gem_exec_scheduler/semaphore-resolve
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> Link:
> https://patchwork.freedesktop.org/patch/msgid/20190620142052.19311-2-
> chris at chris-wilson.co.uk
Thanks, it definitely did the trick!
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