[Bug 69747] [HSW ULT]igt/kms_flip/flip-vs-panning-vs-hang-interruptible causes "unclaimed register" messages

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69747

--- Comment #10 from Paulo Zanoni <przanoni at gmail.com> ---
(In reply to comment #9)
> (In reply to comment #0)
> > Created attachment 86433 [details]
> > dmesg
> > 
> > System Environment:
> > --------------------------
> > Platform:  Haswell ULT
> > Kernel: (drm-intel-next-queued)1b068ee25776533074251f1c6276c5f720c0284b
> > 
> > Bug detailed description:
> > -----------------------------
> > It causes <3>[  326.885041] [drm:intel_uncore_check_errors] *ERROR*
> > Unclaimed register before interrupt. It happens on haswell ULT with
> > -queued,-fixes and -nightly kernel. I can't find out a good commit.
> > 
> > output:
> > Using monotonic timestamps
> > Beginning flip-vs-panning-vs-hang-interruptible on crtc 3, connector 10
> >   1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
> > ...
> > flip-vs-panning-vs-hang-interruptible on crtc 3, connector 10: PASSED
> > 
> > Beginning flip-vs-panning-vs-hang-interruptible on crtc 5, connector 10
> >   1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
> > ...
> > flip-vs-panning-vs-hang-interruptible on crtc 5, connector 10: PASSED
> > 
> > Beginning flip-vs-panning-vs-hang-interruptible on crtc 7, connector 10
> >   1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
> > ...
> > flip-vs-panning-vs-hang-interruptible on crtc 7, connector 10: PASSED
> > 
> > Subtest flip-vs-panning-vs-hang-interruptible: SUCCESS
> > 
> > Reproduce steps:
> > ----------------------------
> > 1. ./kms_flip --run-subtest flip-vs-panning-vs-hang-interruptible
> 
> Can you please reproduce the bug again and attach the error state?
> 
> Whenever you see a dmesg with "[  158.798928] [drm] capturing error event;
> look for more information in /sys/class/drm/card0/error", please attach the
> error state.

Ignore that. Daniel just explained this test is supposed to hang the gpu... My
bad.

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