[Bug 96526] [BAT execlists] Sporadic - gem_exec_suspend basic-s4 GPU hang after resume

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96526

--- Comment #70 from solitone <solitone at mail.com> ---
(In reply to Chris Wilson from comment #18)
> commit 5ab57c7020697942ea15f45ad14c69cecb164329
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Fri Jul 15 14:56:20 2016 +0100

This seems included in version 4.8-rc2:

$ git describe bafb2f7d4755bf1571bd5e9a03b97f3fc4fe69ae
v4.8-rc2-641-gbafb2f7d4755

I have kernel version 4.9.30:

$ uname -v
#1 SMP Debian 4.9.30-2+deb9u2 (2017-06-26)

but I still experience the bug. This is because, if I understand it right, the
commit containing this patch has been reverted in the production kernel:

################
commit 0ee72d8f9b8e17b8e4ccfebc7a25cbc2d395cd6a
Author: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Date:   Wed Apr 12 15:49:39 2017 +0200

    Revert "drm/i915/execlists: Reset RING registers upon resume"

    This reverts commit f2a0409a08502d64fbe3990354dff5902b08d2fb which is
    commit bafb2f7d4755bf1571bd5e9a03b97f3fc4fe69ae upstream.

    It was reported to have problems.
################

https://lists.freedesktop.org/archives/intel-gfx/2017-April/125833.html

I therefore wonder whether this means this bug is still there in the production
kernel.

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