[Bug 93768] [BAT SKL] GPU death starting with first symptom: WARNING backtrace: "DC6 already programmed to be enabled."

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93768

--- Comment #1 from Mika Kuoppala <mika.kuoppala at intel.com> ---
The dmesg traces on both cases quite identical, the triggering test being

kms_flip --r basic-plain-flip

[  232.182718] kms_flip: starting subtest basic-plain-flip
[  233.614716] [drm] RC6 on
[  244.593971] [drm] RC6 on
[  252.955029] ------------[ cut here ]------------
[  252.955049] WARNING: CPU: 7 PID: 6205 at
drivers/gpu/drm/i915/intel_runtime_pm.c:578 skl_enable_dc6+0x16a/0x190 [i915]()
[  252.955050] DC6 already programmed to be enabled.
...

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