[Bug 106373] [CI] igt at drv_module_reload@basic-reload - dmesg-fail - Failed assertion: __gem_execbuf(fd, execbuf) == 0 && Failed to idle engines, declaring wedged!
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Tue May 22 20:34:23 UTC 2018
https://bugs.freedesktop.org/show_bug.cgi?id=106373
Martin Peres <martin.peres at free.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |CLOSED
--- Comment #5 from Martin Peres <martin.peres at free.fr> ---
(In reply to Chris Wilson from comment #4)
> Should be improved by
>
> commit dd0cf235d81f24c1ba80c4a000bafc9f2dce3840
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date: Sun May 6 18:13:28 2018 +0100
>
> drm/i915: Speed up idle detection by kicking the tasklets
>
> We rely on ksoftirqd to run in a timely fashion in order to drain the
> execlists queue. Quite frequently, it does not. In some cases we may see
> latencies of over 200ms triggering our idle timeouts and forcing us to
> declare the driver wedged!
>
> Thus we can speed up idle detection by bypassing ksoftirqd in these
> cases and flush our tasklet to confirm if we are indeed still waiting
> for the ELSP to drain.
>
> v2: Put the execlists.first check back; it is required for handling
> reset!
>
> References: https://bugs.freedesktop.org/show_bug.cgi?id=106373
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 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/20180506171328.30034-1-
> chris at chris-wilson.co.uk
Seems like it did the trick. We used to reproduce the issue every 5-20 runs,
and we have not hit it in 200 runs now. Thanks!
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