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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW]igt/tools_test + igt/drv_missed_irq_hang sporadically causes *ERROR* Unclaimed register detected"
href="https://bugs.freedesktop.org/show_bug.cgi?id=85890#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW]igt/tools_test + igt/drv_missed_irq_hang sporadically causes *ERROR* Unclaimed register detected"
href="https://bugs.freedesktop.org/show_bug.cgi?id=85890">bug 85890</a>
from <span class="vcard"><a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> <span class="fn">Guo Jinxian</span></a>
</span></b>
<pre>I met similar error on BDW after resume from S4
root@x-bdwh01:/home/testframework# dmesg -r|egrep "<[1-4]>"|grep drm
<3>[ 7633.842933] [drm:hsw_unclaimed_reg_detect.isra.7 [i915]] *ERROR*
Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this
problem.
<3>[ 7633.853452] [drm:hsw_unclaimed_reg_detect.isra.7 [i915]] *ERROR*
Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this
problem.</pre>
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