<html>
<head>
<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>high
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [SNB Regression]igt/pm_rpm subcases causes " WARNING: CPU: 2 PID: 3795 at drivers/gpu/drm/i915/intel_display.c:10543 check_crtc_state+0x198/0x888 [i915]()" sporadically"
href="https://bugs.freedesktop.org/show_bug.cgi?id=80464">80464</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>[SNB Regression]igt/pm_rpm subcases causes " WARNING: CPU: 2 PID: 3795 at drivers/gpu/drm/i915/intel_display.c:10543 check_crtc_state+0x198/0x888 [i915]()" sporadically
</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=101657" name="attach_101657" title="dmesg">attachment 101657</a> <a href="attachment.cgi?id=101657&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: Yes.
The fail rate is about 1 out of 3
I unable to find good commit
Non-working platforms: SNB
==kernel==
--------------------------
origin/drm-intel-nightly: 794975a476b0b5e16d04ed1e5d082b9e2b54b4fb(fails)
drm-intel-nightly: 2014y-06m-23d-10h-38m-48s integration manifest
origin/drm-intel-next-queued: 9c33baa6b3bbb01c1a88dceba986b20e6642cf31(fails)
drivers/i915: Fix unnoticed failure of init_ring_common()
origin/drm-intel-fixes: bfafe93a1cd466ef318b7e5f6c65f59aee147791(fails)
drm/i915: cache hw power well enabled state
==Bug detailed description==
-----------------------------
igt/pm_rpm subcases causes " WARNING: CPU: 2 PID: 3795 at
drivers/gpu/drm/i915/intel_display.c:10543 check_crtc_state+0x198/0x888
[i915]()" sporadically
Case list:
igt/pm_rpm/modeset-non-lpsp-stress
igt/pm_rpm/modeset-non-lpsp-stress-no-wait
igt/pm_rpm/modeset-stress-extra-wait
igt/pm_rpm/pci-d3-state
igt/pm_rpm/reg-read-ioctl
igt/pm_rpm/rte
igt/pm_rpm/sysfs-read
igt/pm_rpm/system-suspend
Output:
[root@x-sgb4 tests]# ./pm_rpm --run-subtest modeset-non-lpsp-stress-no-wait
IGT-Version: 1.7-gfedb9b6 (i686) (Linux:
3.16.0-rc2_drm-intel-nightly_794975_20140624+ i686)
Runtime PM support: 1
PC8 residency support: 0
Subtest modeset-non-lpsp-stress-no-wait: SUCCESS
Dmesg shows:
[ 465.280645] WARNING: CPU: 2 PID: 3795 at
drivers/gpu/drm/i915/intel_display.c:10543 check_crtc_state+0x198/0x888
[i915]()
[ 465.280646] crtc active state doesn't match with hw state (expected 0, found
1)
[ 465.280647] Modules linked in: dm_mod snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev
dcdbas serio_raw pcspkr i2c_i801 snd_hda_intel snd_hda_controller snd_hda_codec
snd_hwdep snd_pcm lpc_ich mfd_core snd_timer snd soundcore tpm_tis parport_pc
tpm parport acpi_cpufreq i915 video button drm_kms_helper drm
[ 465.280658] CPU: 2 PID: 3795 Comm: pm_rpm Tainted: G W
3.16.0-rc2_drm-intel-nightly_794975_20140624+ #3850
[ 465.280659] Hardware name: Dell Inc. OptiPlex 990/0DXWW6, BIOS A02
02/26/2011
[ 465.280659] 00000000 c16f4ae7 f4d5baf0 c10311b0 f81e7ca1 f5013000 f4d291e4
c28a8001
[ 465.280662] f4d291e0 c103122b 00000009 f4d5baf0 f822fba5 f4d5bb08 f81e7ca1
f822f374
[ 465.280665] 0000292f f822fba5 00000000 00000001 00000a90 f5b0a6c4 c2f757eb
f4d5bb34
[ 465.280667] Call Trace:
[ 465.280669] [<c16f4ae7>] ? dump_stack+0x3e/0x4e
[ 465.280671] [<c10311b0>] ? warn_slowpath_common+0x65/0x78
[ 465.280679] [<f81e7ca1>] ? check_crtc_state+0x198/0x888 [i915]
[ 465.280681] [<c103122b>] ? warn_slowpath_fmt+0x29/0x2d
[ 465.280688] [<f81e7ca1>] ? check_crtc_state+0x198/0x888 [i915]
[ 465.280699] [<f81f3563>] ? intel_modeset_check_state+0x2ea/0x56f [i915]
[ 465.280701] [<c16f201e>] ? printk+0x16/0x1a
[ 465.280709] [<f81f3808>] ? intel_set_mode+0x20/0x25 [i915]
[ 465.280716] [<f81f4288>] ? intel_crtc_set_config+0x62f/0x92c [i915]
[ 465.280720] [<f809aef7>] ? drm_mode_setplane+0x136/0x136 [drm]
[ 465.280723] [<f809aef7>] ? drm_mode_setplane+0x136/0x136 [drm]
[ 465.280728] [<f8098219>] ? drm_mode_set_config_internal+0x39/0x8a [drm]
[ 465.280731] [<f809aef7>] ? drm_mode_setplane+0x136/0x136 [drm]
[ 465.280735] [<f809b26a>] ? drm_mode_setcrtc+0x373/0x405 [drm]
[ 465.280739] [<f809aef7>] ? drm_mode_setplane+0x136/0x136 [drm]
[ 465.280743] [<f80908cb>] ? drm_ioctl+0x22e/0x35f [drm]
[ 465.280746] [<f809aef7>] ? drm_mode_setplane+0x136/0x136 [drm]
[ 465.280750] [<f809069d>] ? drm_copy_field+0x47/0x47 [drm]
[ 465.280752] [<c10ed665>] ? do_vfs_ioctl+0x3fa/0x444
[ 465.280754] [<c1073b56>] ? clockevents_program_event+0xe6/0x107
[ 465.280756] [<c1074d88>] ? tick_program_event+0x1c/0x1f
[ 465.280758] [<c1048580>] ? hrtimer_interrupt+0x14d/0x205
[ 465.280760] [<c10ed6f1>] ? SyS_ioctl+0x42/0x6d
[ 465.280761] [<c16f99e8>] ? sysenter_do_call+0x12/0x22
[ 465.280762] ---[ end trace 40dd835f1176ec25 ]---
==Reproduce steps==
----------------------------
1. ./pm_rpm --run-subtest modeset-non-lpsp-stress-no-wait</pre>
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