[Bug 95048] tests/gem_close_race, threads SEGFAULT on BDW, GPU hang SKL, machine hang on SNB

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Apr 22 15:06:09 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=95048

--- Comment #12 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 757b9be460e06c8466f6c49ab7f0d7ff234b5b54
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Fri Apr 22 16:02:12 2016 +0100

    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 at chris-wilson.co.uk>

Please test and confirm that we are not killing machines...

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