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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][SHARDS] igt@gem_exec_schedule@semaphore-resolve - fail - Failed assertion: !"GPU hung""
href="https://bugs.freedesktop.org/show_bug.cgi?id=110519#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][SHARDS] igt@gem_exec_schedule@semaphore-resolve - fail - Failed assertion: !"GPU hung""
href="https://bugs.freedesktop.org/show_bug.cgi?id=110519">bug 110519</a>
from <span class="vcard"><a class="email" href="mailto:martin.peres@free.fr" title="Martin Peres <martin.peres@free.fr>"> <span class="fn">Martin Peres</span></a>
</span></b>
<pre>(In reply to Chris Wilson from <a href="show_bug.cgi?id=110519#c7">comment #7</a>)
<span class="quote">> commit 8ee36e048c98d4015804a23f884be2576f778a93 (HEAD ->
> drm-intel-next-queued, drm-intel/for-linux-next,
> drm-intel/drm-intel-next-queued)
> Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
> 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 <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
> Reviewed-by: Mika Kuoppala <<a href="mailto:mika.kuoppala@linux.intel.com">mika.kuoppala@linux.intel.com</a>>
> Link:
> <a href="https://patchwork.freedesktop.org/patch/msgid/20190620142052.19311-2">https://patchwork.freedesktop.org/patch/msgid/20190620142052.19311-2</a>-
> <a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a></span >
Thanks, it definitely did the trick!</pre>
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