[Bug 111626] [CI][SHARDS] igt at perf_pmu@busy-idle-no-semaphores-bcs0 - dmesg-warn - WARNING: possible irq lock inversion dependency detected

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Sep 13 13:53:48 UTC 2019


https://bugs.freedesktop.org/show_bug.cgi?id=111626

--- Comment #4 from Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com> ---
What about intel_engine_pm_put from i915_pmu.c/engines_sample (hrtimer)? Do we
need to hold an engine pm ref for the duration of the event being enabled?
However those hooks are also potentially from irqoff context...

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