Chris Wilson 757b9be460 igt/gem_close_race: Avoid using threads, use signals instead
Emulate the behaviour of the second thread killing fd at random by
having a signal fire at a random time instead. Only one thread and so we
do not have the issue of accessing another valid handle on another fd
and so executing a blank buffer - triggering GPU hangs.

References: https://bugs.freedesktop.org/show_bug.cgi?id=95048
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2016-04-22 16:05:33 +01:00
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