linux-kernel - v4.20-rc5+ on x220: Resetting chip for hang on rcs0

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Date:   Sun, 9 Dec 2018 12:18:56 +0100
From:   Pavel Machek <pavel@....cz>
To:     Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>
Cc:     kernel list <linux-kernel@...r.kernel.org>,
        jani.nikula@...ux.intel.com, rodrigo.vivi@...el.com,
        intel-gfx@...ts.freedesktop.org, chris@...is-wilson.co.uk
Subject: v4.20-rc5+ on x220: Resetting chip for hang on rcs0

Hi!

Another day, another problem... but this one is different from the
previous hang, as machine survives.

Chromium was running with youtube video playing.

[31850.666274] [drm] GPU hangs can indicate a bug anywhere in the
entire gfx stack, including userspace.
[31850.666277] [drm] Please file a _new_ bug report on
bugs.freedesktop.org against DRI -> DRM/Intel
[31850.666279] [drm] drm/i915 developers can then reassign to the
right component if it's not a kernel issue.
[31850.666282] [drm] The gpu crash dump is required to analyze gpu
hangs, so please always attach it.
[31850.666285] [drm] GPU crash dump saved to
/sys/class/drm/card0/error
[31850.666394] i915 0000:00:02.0: Resetting chip for hang on rcs0
[31850.668474] WARNING: CPU: 0 PID: 13675 at
/data/fast/l/k/include/linux/dma-fence.h:503
i915_request_skip+0x71/0x80
[31850.668478] Modules linked in:
[31850.668484] CPU: 0 PID: 13675 Comm: kworker/0:3 Not tainted
4.20.0-rc5+ #5
[31850.668487] Hardware name: LENOVO 42872WU/42872WU, BIOS 8DET74WW
(1.44 ) 03/13/2018

Dmesg and /sys/class/drm/card0/error are attached.

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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