[Bug 106560] [CI] igt at drv_selftest@live_hangcheck - igt_reset_engines failed with error
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Aug 15 09:19:35 UTC 2018
https://bugs.freedesktop.org/show_bug.cgi?id=106560
Chris Wilson <chris at chris-wilson.co.uk> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution|--- |FIXED
--- Comment #7 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit a99b32a6fff7e482a267c72e565c8c410ce793d7 (HEAD -> drm-intel-next-queued,
drm-intel/drm-intel-next-queued)
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date: Tue Aug 14 18:18:57 2018 +0100
drm/i915: Clear stop-engine for a pardoned reset
If we pardon a per-engine reset, we may leave the STOP_RING bit asserted
in RING_MI_MODE resulting in the engine hanging. Unconditionally clear
it on the per-engine exit path as we know that either we skipped the
reset and so need the cancellation, or the reset was successful and the
cancellation is a no-op, or there was an error and we will follow up
with a full-reset or wedging (both of which will stop the engines again
as required).
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107188
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106560
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
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/20180814171857.24673-1-chris@chris-wilson.co.uk
Please note that the CI run for this patch indicated we have yet another cause
for hangs here. When that is detected please do file a fresh bug so we don't
have the debug logs confused.
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