https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6318/shard-kbl3/igt@perf_pmu@busy-double-start-bcs0.html <6> [680.854903] [IGT] perf_pmu: starting subtest busy-double-start-bcs0 <3> [684.059453] i915 0000:00:02.0: Failed to idle engines, declaring wedged!
The CI Bug Log issue associated to this bug has been updated. ### New filters associated * KBL: igt@perf_pmu@busy-double-start-bcs0 - dmesg-warn - Failed to idle engines, declaring wedged! - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6318/shard-kbl3/igt@perf_pmu@busy-double-start-bcs0.html
commit 8db7933ee3d442627c716ee49a70fa3aef18640d (HEAD -> drm-intel-next-queued, drm-intel/for-linux-next, drm-intel/drm-intel-next-queued) Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Mon Jun 24 10:20:09 2019 +0100 drm/i915/execlists: Always clear ring_pause if we do not submit In the unlikely case (thank you CI!), we may find ourselves wanting to issue a preemption but having no runnable requests left. In this case, we set the semaphore before computing the preemption and so must unset it before forgetting (or else we leave the machine busywaiting until the next request comes along and so likely hang). v2: Replace readback with only a wmb after asserting the semaphore Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190624092009.30189-1-chris@chris-wilson.co.uk
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