[Bug 104262] [CI] igt at drv_selftest@live_hangcheck - incomplete - Softdog | fail Returncode -11

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104262

--- Comment #12 from Chris Wilson <chris at chris-wilson.co.uk> ---
This helped (not fixed) somewhat my bxt:

commit 274de876065a34ca1ff093bfacb62e440a4491be
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Fri Feb 2 14:54:55 2018 +0000

    drm/i915/execlists: Flush GTIIR on clearing CS interrupts during reset

    Be paranoid and flush the GTIIR after clearing the CS interrupt to be
    sure it has taken before we re-enable the interrupt handler. We still
    see early interrupts following reset, the tasklet handling the mmio read
    before it has been written by the CS. This hopefully reduces the
    frequency to 0...

    References: https://bugs.freedesktop.org/show_bug.cgi?id=104262
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
    Cc: Michel Thierry <michel.thierry at intel.com>
    Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
    Acked-by: Michel Thierry <michel.thierry at intel.com>
    Link:
https://patchwork.freedesktop.org/patch/msgid/20180202145455.29876-1-chris@chris-wilson.co.uk

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