linux-kernel - RE: [PATCH] mei: Abort writes if incomplete after 1s

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Date:   Wed, 24 Jul 2019 09:53:16 +0100
From:   Chris Wilson <chris@...is-wilson.co.uk>
To:     "Usyskin, Alexander" <alexander.usyskin@...el.com>,
        "Winkler, Tomas" <tomas.winkler@...el.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "C, Ramalingam" <ramalingam.c@...el.com>,
        "intel-gfx@...ts.freedesktop.org" <intel-gfx@...ts.freedesktop.org>
Subject: RE: [PATCH] mei: Abort writes if incomplete after 1s

Quoting Usyskin, Alexander (2019-07-24 09:35:13)
> > -----Original Message-----
> > From: Chris Wilson [mailto:chris@...is-wilson.co.uk]
> > Sent: Tuesday, July 23, 2019 14:29
> > To: Winkler, Tomas <tomas.winkler@...el.com>; intel-
> > gfx@...ts.freedesktop.org
> > Cc: linux-kernel@...r.kernel.org; Usyskin, Alexander
> > <alexander.usyskin@...el.com>; C, Ramalingam <ramalingam.c@...el.com>
> > Subject: RE: [PATCH] mei: Abort writes if incomplete after 1s
> > 
> > Quoting Winkler, Tomas (2019-07-23 12:25:14)
> > > >
> > > > During i915 unload, it appears that it may get stuck waiting on a
> > > > workqueue being hogged by mei:
> > >
> > > Thanks for the bug report, but this is not a proper fix, we will try to work it out.
> > 
> > Perfect :)
> > 
> > It's only happened a couple of times in the last week or so, but if you want to
> > throw patches at intel-gfx-trybot@...ts.freedesktop.org to try and grab more
> > information, please feel free to.
> > -Chris
> 
> Do you have full dmesg from affected system?

Attached, plus a few more recent hits.

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6543/fi-blb-e6850/igt@i915_module_load@reload.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6537/fi-blb-e6850/igt@i915_module_load@reload.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6516/fi-blb-e6850/igt@i915_module_load@reload.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6480/fi-blb-e6850/igt@i915_module_load@reload.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6457/fi-blb-e6850/igt@i915_module_load@reload.html

Hope that helps,
-chris

Download attachment "dmesg.xz" of type "application/x-xz" (219240 bytes)