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<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 --- - [BDW Bisected]igt/kms_flip/rcs-wf_vblank-vs-dpms-interruptible causes "WARNING: CPU: 0 PID: 14539 at drivers/gpu/drm/drm_irq.c:1089 drm_wait_one_vblank+0x140/0x16b [drm]()""
href="https://bugs.freedesktop.org/show_bug.cgi?id=84217">84217</a>
</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 Bisected]igt/kms_flip/rcs-wf_vblank-vs-dpms-interruptible causes "WARNING: CPU: 0 PID: 14539 at drivers/gpu/drm/drm_irq.c:1089 drm_wait_one_vblank+0x140/0x16b [drm]()"
</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>==System Environment==
--------------------------
Regression: Yes.
Non-working platforms: BDW
==kernel==
--------------------------
origin/drm-intel-nightly:c5660b4ad395f1e34eacc22cf81c687edfc9c83c(fails)
drm-intel-nightly: 2014y-09m-19d-18h-12m-22s UTC integration manifest
==Bug detailed description==
-----------------------------
igt/kms_flip/rcs-wf_vblank-vs-dpms-interruptible causes "WARNING: CPU: 0 PID:
14539 at drivers/gpu/drm/drm_irq.c:1089 drm_wait_one_vblank+0x140/0x16b
[drm]()"
Dmesg:
[ 616.648808] WARNING: CPU: 0 PID: 14539 at drivers/gpu/drm/drm_irq.c:1089
drm_wait_one_vblank+0x140/0x16b [drm]()
[ 616.648811] vblank wait timed out on crtc 1
[ 616.648813] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support ppdev
snd_hda_codec_hdmi snd_hda_intel pcspkr snd_hda_controller snd_hda_codec
snd_hwdep snd_pcm i2c_i801 snd_timer lpc_ich mfd_core snd soundcore battery
parport_pc parport ac acpi_cpufreq i915 button video drm_kms_helper drm
[ 616.648845] CPU: 0 PID: 14539 Comm: kms_flip Tainted: G W
3.17.0-rc5_prts_2288af_20140919_debug+ #4
[ 616.648848] 0000000000000000 ffff880090833a08 ffffffff8181606c
ffff880090833a50
[ 616.648854] ffff880090833a40 ffffffff8103e87f ffffffffa000611a
0000000000000001
[ 616.648859] ffff8800035cd000 ffff8801499c7500 0000000000001073
ffff880090833aa0
[ 616.648864] Call Trace:
[ 616.648872] [] dump_stack+0x45/0x56
[ 616.648878] [] warn_slowpath_common+0x7f/0x98
[ 616.648893] [] ? drm_wait_one_vblank+0x140/0x16b [drm]
[ 616.648898] [] warn_slowpath_fmt+0x4c/0x4e
[ 616.648904] [] ? finish_wait+0x5c/0x65
[ 616.648917] [] drm_wait_one_vblank+0x140/0x16b [drm]
[ 616.648922] [] ? abort_exclusive_wait+0x89/0x89
[ 616.648958] [] intel_enable_primary_hw_plane+0x7a/0x83 [i915]
[ 616.648990] [] intel_crtc_enable_planes+0x2f/0xd7 [i915]
[ 616.649019] [] haswell_crtc_enable+0x876/0x89d [i915]
[ 616.649051] [] __intel_set_mode+0xc77/0x1230 [i915]
[ 616.649057] [] ? trace_hardirqs_on_caller+0x16e/0x18a
[ 616.649085] [] intel_set_mode+0x14/0x2a [i915]
[ 616.649111] [] intel_crtc_set_config+0x9b6/0xa9f [i915]
[ 616.649131] [] drm_mode_set_config_internal+0x55/0xe0 [drm]
[ 616.649150] [] drm_mode_setcrtc+0x39e/0x498 [drm]
[ 616.649164] [] drm_ioctl+0x385/0x404 [drm]
[ 616.649181] [] ? drm_mode_setplane+0x1d8/0x1d8 [drm]
[ 616.649187] [] do_vfs_ioctl+0x3a3/0x46c
[ 616.649193] [] ? current_kernel_time+0x61/0x9a
[ 616.649199] [] ? trace_hardirqs_on_caller+0x16e/0x18a
[ 616.649203] [] SyS_ioctl+0x50/0x7d
[ 616.649209] [] system_call_fastpath+0x16/0x1b
[ 616.649212] ---[ end trace 0a38a53f881c9a40 ]---
==Reproduce steps==
----------------------------
1. ./kms_flip --run-subtest rcs-wf_vblank-vs-dpms-interruptible
==Bisect results form [PRTS][auto-bisect]==
----------------------------
commit 51e31d49c89055299e34b8f44d13f70e19aaaad1
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
AuthorDate: Mon Sep 15 12:36:02 2014 +0200
Commit: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
CommitDate: Fri Sep 19 14:43:15 2014 +0200
drm/i915: Use generic vblank wait
This has the upside that it will no longer steal interrupts from the
interrupt handler on pre-g4x. Furthermore this will now scream properly
on all platforms if we don't have hw counters enabled.
v2: Adjust to the new names.
Cc: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>>
Reviewed-by: Matt Roper <<a href="mailto:matthew.d.roper@intel.com">matthew.d.roper@intel.com</a>>
Signed-off-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>></pre>
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