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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW] igt/igt/kms_universal_plane subcase disable-primary-vs-flip-pipe-A causes WARNING: CPU: 0 PID: 29343 at drivers/gpu/drm/i915/intel_display.c:1359 hsw_disable_ips+0x34/0x162 [i915]()"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90209">90209</a>
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<tr>
<th>Summary</th>
<td>[BDW] igt/igt/kms_universal_plane subcase disable-primary-vs-flip-pipe-A causes WARNING: CPU: 0 PID: 29343 at drivers/gpu/drm/i915/intel_display.c:1359 hsw_disable_ips+0x34/0x162 [i915]()
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (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>yex.tian@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=115390" name="attach_115390" title="dmesg info">attachment 115390</a> <a href="attachment.cgi?id=115390&action=edit" title="dmesg info">[details]</a></span>
dmesg info
==System Environment==
-----------------------------------------------------
Regression: not sure
Non-working platforms: BDW
==Kernel==
--------------------------------------------------
commit 92bb36c80e561f82b1f4b63cc269a71833137841
Author: Jani Nikula <<a href="mailto:jani.nikula@intel.com">jani.nikula@intel.com</a>>
Date: Fri Apr 24 00:26:53 2015 +0300
drm-intel-nightly: 2015y-04m-23d-21h-26m-24s UTC integration manifest
==Bug detailed description==
--------------------------------------------------
igt/igt/kms_universal_plane subcase disable-primary-vs-flip-pipe-A causes
WARNING: CPU: 0 PID: 29343 at drivers/gpu/drm/i915/intel_display.c:1359
hsw_disable_ips+0x34/0x162[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: 1.10-gfc69bb0 (x86_64) (Linux:
4.0.0_drm-intel-nightly_92bb36_20150424+ x86_64)
Subtest disable-primary-vs-flip-pipe-A: SUCCESS (0.461s)
==Output dmesg info==
-------------------------------------------------------------------
[ 9291.963111] ------------[ cut here ]------------
[ 9291.963122] WARNING: CPU: 0 PID: 29343 at
drivers/gpu/drm/i915/intel_display.c:1359 hsw_disable_ips+0x34/0x162 [i915]()
[ 9291.963124] plane A assertion failure (expected on, current off)
[ 9291.963125] Modules linked in: ipv6 dm_mod iTCO_wdt iTCO_vendor_support
ppdev snd_hda_codec_hdmi pcspkr i2c_i801 snd_hda_intel snd_hda_controller
snd_hda_codec snd_hda_core snd_hwdep snd_pcm lpc_ich snd_timer mfd_core snd
soundcore battery parport_pc parport ac acpi_cpufreq i915 button video
drm_kms_helper drm
[ 9291.963138] CPU: 0 PID: 29343 Comm: kms_universal_p Tainted: G W
4.0.0_drm-intel-nightly_92bb36_20150424+ #38
[ 9291.963139] 0000000000000000 0000000000000009 ffffffff81795847
ffff8800028e7de8
[ 9291.963141] ffffffff8103bd5a ffff8801445a6400 ffffffffa00d17d9
ffff8800028e7e08
[ 9291.963143] ffff880002d20000 ffff880144bc9000 ffff8800a7e14800
ffff880002d20000
[ 9291.963145] Call Trace:
[ 9291.963148] [<ffffffff81795847>] ? dump_stack+0x40/0x50
[ 9291.963150] [<ffffffff8103bd5a>] ? warn_slowpath_common+0x98/0xb0
[ 9291.963161] [<ffffffffa00d17d9>] ? hsw_disable_ips+0x34/0x162 [i915]
[ 9291.963164] [<ffffffff8103bdb7>] ? warn_slowpath_fmt+0x45/0x4a
[ 9291.963175] [<ffffffffa00d17d9>] ? hsw_disable_ips+0x34/0x162 [i915]
[ 9291.963185] [<ffffffffa009115f>] ? display_crc_ctl_write+0x5d9/0x907 [i915]
[ 9291.963188] [<ffffffff8111100a>] ? __sb_start_write+0xa5/0xd5
[ 9291.963190] [<ffffffff8110f29d>] ? vfs_write+0xb0/0x186
[ 9291.963193] [<ffffffff8110fc0c>] ? SyS_write+0x41/0x84
[ 9291.963195] [<ffffffff8179b0f2>] ? system_call_fastpath+0x12/0x17
[ 9291.963196] ---[ end trace ddf8f1b5d46177e9 ]---
==Reproduce steps==
----------------------------
1, ./kms_universal_plane --run-subtest disable-primary-vs-flip-pipe-A</pre>
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