[Bug 107207] [BAT] igt at drv_selftest@live_hangcheck - incomplete - kernel BUG at drivers/gpu/drm/i915/intel_lrc.c:1040

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107207

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> ---
Hmm, we have

commit 3970c65c2b47c450f917bc8a29c5849563a95dfe
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Mon Jul 23 15:53:35 2018 +0100

    drm/i915: Skip repeated calls to i915_gem_set_wedged()

    If we already wedged, i915_gem_set_wedged() becomes a complicated no-op.

    References: https://bugs.freedesktop.org/show_bug.cgi?id=107343
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
    Link:
https://patchwork.freedesktop.org/patch/msgid/20180723145335.24579-1-c
hris at chris-wilson.co.uk

+

commit f1a498fa549e8e86895cda37e3fca867aae955b7
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Mon Jul 16 09:03:30 2018 +0100

    drm/i915/execlists: Disable submission tasklet upon wedging

    If we declare the driver wedged before the GPU truly is, then we may see
    the GPU complete some CS events following our cancellation. This leaves
    us quite confused as we deleted all the bookkeeping and thus complain
    about the inconsistent state.

    We can just ignore the remaining events and let the GPU idle by not
    feeding it, and so avoid trying to racily overwrite shared state. We
    rely on there being a full GPU reset before unwedging, giving us the
    opportunity to reset the shared state.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107188
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
    Link:
https://patchwork.freedesktop.org/patch/msgid/20180716080332.32283-4-c
hris at chris-wilson.co.uk

I think accounts for it.

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