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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 --- - [PNV Regression]igt/kms_flip some subcases fail"
href="https://bugs.freedesktop.org/show_bug.cgi?id=79050">79050</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>[PNV 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>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=99553" name="attach_99553" title="dmesg">attachment 99553</a> <a href="attachment.cgi?id=99553&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: Yes.
But I can't find good commit on both reset igt and kernel
Non-working platforms: PNV
==kernel==
--------------------------
-nightly: 36765340cb068dec1216342bfcdbf2678ec29860(fails)
-queued: bc76e320f21f8bd790a72bd5dc06909617432352(fails)
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date: Tue May 20 22:46:50 2014 +0200
drm/i915: Drop now misleading DDI comment from dp_link_down
Since
commit 2e82a7203182d0883d0f9450d40ad6e1c6578ad9
Author: Imre Deak <<a href="mailto:imre.deak@intel.com">imre.deak@intel.com</a>>
Date: Fri Jan 17 15:46:43 2014 +0200
drm/i915: don't disable DP port after a failed link training
and
commit 5d6a1116c6475404e6505b708320f9579ae19acd
Author: Imre Deak <<a href="mailto:imre.deak@intel.com">imre.deak@intel.com</a>>
Date: Thu Jan 16 18:35:57 2014 +0200
drm/i915: don't disable the DP port if the link is lost
we no longer call intel_dp_link_down from generic DP code, but only
from the !HAS_DDI dp encoder functions. hsw/bdw have their own encoder
disabling callback in intel_ddi.c.
Hence the early return is no longer needed and the big comment just
confusing, so let's rip it out. To ensure what we don't accidentally
use this again on ddi encoders add a WARN_ON instead.
Spotted while reading through intel_dp.c
Cc: Imre Deak <<a href="mailto:imre.deak@intel.com">imre.deak@intel.com</a>>
Cc: Paulo Zanoni <<a href="mailto:paulo.r.zanoni@intel.com">paulo.r.zanoni@intel.com</a>>
Signed-off-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
-fixes: 4ba4801d73d14690ed15774424e8b1d4c18323a5(fails)
Author: Dave Airlie <<a href="mailto:airlied@redhat.com">airlied@redhat.com</a>>
Date: Tue May 20 09:56:26 2014 +1000
Merge tag 'drm-intel-fixes-2014-05-16' of
git://anongit.freedesktop.org/drm-intel into drm-fixes
Intel fixes for regressions, black screens and hangs, for 3.15.
* tag 'drm-intel-fixes-2014-05-16' of
git://anongit.freedesktop.org/drm-intel:
drm/i915: Increase WM memory latency values on SNB
drm/i915: restore backlight precision when converting from ACPI
drm/i915: Use the first mode if there is no preferred mode in the EDID
drm/i915/dp: force eDP lane count to max available lanes on BDW
drm/i915/vlv: reset VLV media force wake request register
drm/i915/SDVO: For sysfs link put directory and target in correct order
drm/i915: use lane count and link rate from VBT as minimums for eDP
drm/i915: clean up VBT eDP link param decoding
drm/i915: consider the source max DP lane count too
==Bug detailed description==
-----------------------------
igt/kms_flip some subcases below fail
igt/kms_flip/dpms-vs-vblank-race
igt/kms_flip/dpms-vs-vblank-race-interruptible
igt/kms_flip/modeset-vs-vblank-race
igt/kms_flip/modeset-vs-vblank-race-interruptible
Output:
./kms_flip --run-subtest modeset-vs-vblank-race-interruptible
IGT-Version: 1.6-gc75dcbd (i686) (Linux:
3.15.0-rc5_drm-intel-nightly_367653_20140521+ i686)
Using monotonic timestamps
Beginning modeset-vs-vblank-race-interruptible on crtc 7, connector 8
1024x600 60 1024 1072 1104 1200 600 603 609 625 0xa 0x48 45000
Test assertion failure function run_test_step, file kms_flip.c:886:
Last errno: 4, Interrupted system call
Failed assertion: end - start > 1 * frame_time(o) / 2 && end - start < 3 *
frame_time(o) / 2
Subtest modeset-vs-vblank-race-interruptible: FAIL
./kms_flip --run-subtest dpms-vs-vblank-race-interruptible
IGT-Version: 1.6-g831eb21 (i686) (Linux:
3.15.0-rc5_drm-intel-fixes_f93e94_20140522+ i686)
Using monotonic timestamps
Beginning dpms-vs-vblank-race-interruptible on crtc 7, connector 8
1024x600 60 1024 1072 1104 1200 600 603 609 625 0xa 0x48 45000
Test assertion failure function run_test_step, file kms_flip.c:865:
Last errno: 22, Invalid argument
Failed assertion: __wait_for_vblank(TEST_VBLANK_BLOCK, o->pipe, 1, 0, &reply)
== 0
Subtest dpms-vs-vblank-race-interruptible: FAIL
==Reproduce steps==
----------------------------
1. ./kms_flip --run-subtest modeset-vs-vblank-race-interruptible</pre>
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