[Bug 102037] [KBL][IGT] kernel BUG at drivers/gpu/drm/i915/intel_lrc.c:539!

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102037

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #3 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit f36325f3789c1cf7f0d795ff180cade25ec3a586
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sat Aug 26 12:09:34 2017 +0100

    drm/i915: Clear wedged status upon resume

    When we wake up from suspend, the device has been powered down and
    should come back afresh. We should be able to safely remove the wedged
    status from the previous session and start afresh.

commit fc692bd31bc9dd17c7cc59abdb514a58964fc2a7
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sat Aug 26 12:09:35 2017 +0100

    drm/i915: Discard the request queue if we fail to sleep before suspend

    If we fail to clear the outstanding request queue before suspending,
    mark those requests as lost.

will prevent the BUG after resuming, but leave the underlying issue unresolved.
At least it is lessening the severity of the bug.

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