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<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/kms_flip some subcases fail"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83471">83471</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/kms_flip some subcases fail
</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=105712" name="attach_105712" title="dmesg">attachment 105712</a> <a href="attachment.cgi?id=105712&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: Yes.
Good commit on -next-queued: c1f7ab8c9a7b09f4ed6499904298ddf1c67b1764
On good commit, here has another <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [SNB Regression]igt/kms_flip/vblank-vs-modeset-suspend-interruptible fails sporadically"
href="show_bug.cgi?id=82232">bug 82232</a>
Non-working platforms: SNB
==kernel==
--------------------------
origin/drm-intel-nightly: 2b1159961e4bc38a9090f8ec0ab6f16701dbdf81(fails)
drm-intel-nightly: 2014y-09m-02d-22h-46m-37s integration manifest
origin/drm-intel-next-queued: d5f0b5cb412003274cde50b0583727d0c33bf6e4(fails)
drm: Remove old defines for vswing and pre-emph values
origin/drm-intel-fixes: bbfb44e8b688e778964275ab0862f67463ba4f84(another <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [SNB Regression]igt/kms_flip/vblank-vs-modeset-suspend-interruptible fails sporadically"
href="show_bug.cgi?id=82232">bug
82232</a>)
drm/i915: Fix lock dropping in intel_tv_detect()
==Bug detailed description==
igt/kms_flip some subcases fail.
Here has a similar <a class="bz_bug_link
bz_status_VERIFIED bz_closed"
title="VERIFIED FIXED - [PNV/IVB/HSW Regression]igt/kms_flip some subcases cause "WARNING: CPU: 1 PID: 5455 at drivers/gpu/drm/i915/i915_drv.c:1487 intel_suspend_complete+0x54a/0x58d [i915]()""
href="show_bug.cgi?id=82751">bug 82751</a> before.
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
Output:
[root@x-sgb4 tests]# ./kms_flip --run-subtest vblank-vs-dpms-suspend
IGT-Version: 1.7-gf473a55 (i686) (Linux:
3.17.0-rc2_drm-intel-nightly_2b1159_20140903+ i686)
Using monotonic timestamps
Beginning vblank-vs-dpms-suspend on crtc 8, connector 14
1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
.rtcwake: wakeup from ""mem"" using /dev/rtc0 at Thu Sep 4 10:03:14 2014
.rtcwake: wakeup from ""mem"" using /dev/rtc0 at Thu Sep 4 10:03:46 2014
Test assertion failure function check_state, file kms_flip.c:555:
Failed assertion: timercmp(&es->last_received_ts, &es->current_ts, <)
vblank ts before the vblank was issued!
timerdiff -1s, 990389us
Subtest vblank-vs-dpms-suspend: FAIL
Reproduce steps:
-------------------------
1. ./kms_flip --run-subtest vblank-vs-dpms-suspend</pre>
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