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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW]igt/kms_flip some subcases cause "[drm:hsw_unclaimed_reg_detect.isra.6 [i915]] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem.""
href="https://bugs.freedesktop.org/show_bug.cgi?id=85220">85220</a>
</td>
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<tr>
<th>Summary</th>
<td>[BDW]igt/kms_flip some subcases cause "[drm:hsw_unclaimed_reg_detect.isra.6 [i915]] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem."
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jinxianx.guo@intel.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=108092" name="attach_108092" title="dmesg">attachment 108092</a> <a href="attachment.cgi?id=108092&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: No.
They are only fail on nightly branch
Non-working platforms: BDW
==kernel==
--------------------------
origin/drm-intel-nightly: 8d1dbeed28a28ecf964769bf089503f0c90ffdaa(fails)
drm-intel-nightly: 2014y-10m-19d-14h-54m-38s UTC integration manifest
origin/drm-intel-next-queued: 6476486cb3570d3662e4a3870b884e75d35d1072(another
<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BDW] System dmesg contains "ERROR" when machine resumes from s3"
href="show_bug.cgi?id=83094">bug 83094</a>)
drm/i915: Document that mmap forwarding is discouraged
origin/drm-intel-fixes: bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9(another <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BDW] System dmesg contains "ERROR" when machine resumes from s3"
href="show_bug.cgi?id=83094">bug
83094</a>)
Linux 3.17
==Bug detailed description==
igt/kms_flip some subcases cause "[drm:hsw_unclaimed_reg_detect.isra.6 [i915]]
*ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug
this problem."
Case list:
igt/kms_flip/vblank-vs-dpms-suspend
igt/kms_flip/vblank-vs-dpms-suspend-interruptible
igt/kms_flip/vblank-vs-modeset-suspend
igt/kms_flip/vblank-vs-modeset-suspend-interruptible
igt/kms_flip/vblank-vs-suspend
igt/kms_flip/vblank-vs-suspend-interruptible
igt/kms_pipe_crc_basic/suspend-read-crc-pipe-A
igt/kms_pipe_crc_basic/suspend-read-crc-pipe-B
igt/kms_pipe_crc_basic/suspend-read-crc-pipe-C
igt/pm_rpm/system-suspend
igt/gem_workarounds/check-workaround-data-after-suspend-resume
Output:
"root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip
--run-subtest vblank-vs-modeset-suspend-interruptible
IGT-Version: 1.8-gbba1cd0 (x86_64) (Linux:
3.17.0_drm-intel-nightly_8d1dbe_20141020+ x86_64)
Using monotonic timestamps
Beginning vblank-vs-modeset-suspend-interruptible on crtc 8, connector 19
1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
.rtcwake: wakeup from ""mem"" using /dev/rtc0 at Mon Oct 20 19:06:42 2014
.rtcwake: wakeup from ""mem"" using /dev/rtc0 at Mon Oct 20 19:07:14 2014
vblank-vs-modeset-suspend-interruptible on crtc 8, connector 19: PASSED
Beginning vblank-vs-modeset-suspend-interruptible on crtc 12, connector 19
1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
.rtcwake: wakeup from ""mem"" using /dev/rtc0 at Mon Oct 20 19:07:46 2014
.rtcwake: wakeup from ""mem"" using /dev/rtc0 at Mon Oct 20 19:08:18 2014
vblank-vs-modeset-suspend-interruptible on crtc 12, connector 19: PASSED
Beginning vblank-vs-modeset-suspend-interruptible on crtc 16, connector 19
1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
.rtcwake: wakeup from ""mem"" using /dev/rtc0 at Mon Oct 20 19:08:50 2014
.rtcwake: wakeup from ""mem"" using /dev/rtc0 at Mon Oct 20 19:09:22 2014
vblank-vs-modeset-suspend-interruptible on crtc 16, connector 19: PASSED
Subtest vblank-vs-modeset-suspend-interruptible: SUCCESS (10.538s)
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep
""<[1-4]>""|grep drm <3>[ 390.912991]
[drm:hsw_unclaimed_reg_detect.isra.6 [i915]] *ERROR* Unclaimed register
detected. Please use the i915.mmio_debug=1 to debug this problem.
<3>[ 392.685532] [drm:hsw_unclaimed_reg_detect.isra.6 [i915]] *ERROR*
Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this
problem.
<3>[ 394.518097] [drm:hsw_unclaimed_reg_detect.isra.6 [i915]] *ERROR*
Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this
problem.
<3>[ 396.269628] [drm:hsw_unclaimed_reg_detect.isra.6 [i915]] *ERROR*
Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this
problem.
<3>[ 398.091189] [drm:hsw_unclaimed_reg_detect.isra.6 [i915]] *ERROR*
Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this
problem.
<3>[ 399.834712] [drm:hsw_unclaimed_reg_detect.isra.6 [i915]] *ERROR*
Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this
problem.
==Reproduce steps==
----------------------------
1. ./kms_flip --run-subtest vblank-vs-modeset-suspend-interruptible</pre>
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