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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT SKL] GPU death starting with first symptom: WARNING backtrace: "DC6 already programmed to be enabled.""
href="https://bugs.freedesktop.org/show_bug.cgi?id=93768#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT SKL] GPU death starting with first symptom: WARNING backtrace: "DC6 already programmed to be enabled.""
href="https://bugs.freedesktop.org/show_bug.cgi?id=93768">bug 93768</a>
from <span class="vcard"><a class="email" href="mailto:mika.kuoppala@intel.com" title="Mika Kuoppala <mika.kuoppala@intel.com>"> <span class="fn">Mika Kuoppala</span></a>
</span></b>
<pre>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.
...</pre>
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