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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>Priority</th>
<td>high
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BDW Regression]igt/kms_universal_plane/disable-primary-vs-flip-pipe-A causes " WARNING: CPU: 0 PID: 4454 at drivers/gpu/drm/i915/intel_display.c:1278 assert_plane+0x7b/0x80 [i915]()""
href="https://bugs.freedesktop.org/show_bug.cgi?id=81708">81708</a>
</td>
</tr>
<tr>
<th>Keywords</th>
<td>bisect_pending
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BDW Regression]igt/kms_universal_plane/disable-primary-vs-flip-pipe-A causes " WARNING: CPU: 0 PID: 4454 at drivers/gpu/drm/i915/intel_display.c:1278 assert_plane+0x7b/0x80 [i915]()"
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jinxianx.guo@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=103390" name="attach_103390" title="dmesg">attachment 103390</a> <a href="attachment.cgi?id=103390&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: Yes
Good commit on drm-next: bc1dfff04a5d4064ba0db1fab13f84ab4f333d2b
Non-working platforms: BDW
==kernel==
--------------------------
origin/drm-intel-nightly: af1aaba219fdd90ca1b30f9b8d8d19352224f170(fails)
drm-intel-nightly: 2014y-07m-23d-20h-15m-10s integration manifest
origin/drm-intel-next-queued: 2b8ee5710915a244b807fbe3427299d007d19e89(works)
drm/i915: Allow overlapping userptr objects
origin/drm-intel-fixes: eedd10f45bdcb2a5b2afa35f845e080c3bc984f2(works)
drm/i915: Simplify i915_gem_release_all_mmaps()
origin/drm-fixes: ec8a362f2e6e380e7a1f66a6c9a7f6c237ab3520(works)
Merge branch 'drm-fixes-3.16' of git://people.freedesktop.org/~agd5f/linux
into drm-fixes
origin/drm-mext:78660d5fb03f5d0e6a880dcd704702fd364d93f3(fails)
Merge branch 'component-for-drm' of
git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-next
==Bug detailed description==
-----------------------------
igt/kms_universal_plane/disable-primary-vs-flip-pipe-A causes " WARNING: CPU: 0
PID: 4454 at drivers/gpu/drm/i915/intel_display.c:1278 assert_plane+0x7b/0x80
[i915]()"
Output:
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#
./kms_universal_plane --run-subtest disable-primary-vs-flip-pipe-A
IGT-Version: 1.7-g70e6ed9 (x86_64) (Linux:
3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ x86_64)
Subtest disable-primary-vs-flip-pipe-A: SUCCESS
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep
""<[1-4]>""|grep drm <4>[ 67.919774] WARNING: CPU: 0
PID: 4390 at drivers/gpu/drm/i915/intel_display.c:1278
assert_plane.constprop.48+0x60/0x64 [i915]()
<4>[ 67.919834] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support ppdev
pcspkr snd_hda_codec_hdmi i2c_i801 lpc_ich mfd_core snd_hda_intel
snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore
battery parport_pc parport ac acpi_cpufreq joydev i915 button video
drm_kms_helper drm
<4>[ 67.919875] CPU: 0 PID: 4390 Comm: kms_universal_p Not tainted
3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
<4>[ 67.920390] [<ffffffffa000cd2a>] drm_mode_set_config_internal+0x5a/0xd2
[drm]
<4>[ 67.920465] [<ffffffffa0010956>] drm_mode_setcrtc+0x3ef/0x499 [drm]
<4>[ 67.920478] [<ffffffffa0003223>] drm_ioctl+0x2bd/0x425 [drm]
<4>[ 67.920494] [<ffffffffa0010567>] ? drm_mode_setplane+0x181/0x181 [drm]
Reproduce steps:
-------------------------
1. ./kms_universal_plane --run-subtest disable-primary-vs-flip-pipe-A</pre>
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