[Bug 73644] [gen4] GPU reset fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73644

--- Comment #19 from Chris Wilson <chris at chris-wilson.co.uk> ---
If you don't see the error message that a hang was detected, we haven't
attempted to reset the GPU.

The simplest test for GPU reset is "echo 1 >
/sys/kernel/debug/dri/0/i915_wedged". However, when the GPU hangs for real it
is more likely for the reset to fail.

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