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<body><span class="vcard"><a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> <span class="fn">Guo Jinxian</span></a>
</span> changed
<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BYT/BSW Bisected full-ppgtt] igt/gem_concurrent_blit/gtt-bcs-overwrite-source-forked fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84891">bug 84891</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Keywords</td>
<td>bisect_pending
</td>
<td>
</td>
</tr>
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<td style="text-align:right;">Assignee</td>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
<td>daniel@ffwll.ch
</td>
</tr>
<tr>
<td style="text-align:right;">Summary</td>
<td>[BYT/BSW Regression full-ppgtt] igt/gem_concurrent_blit/gtt-bcs-overwrite-source-forked fails
</td>
<td>[BYT/BSW Bisected full-ppgtt] igt/gem_concurrent_blit/gtt-bcs-overwrite-source-forked fails
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BYT/BSW Bisected full-ppgtt] igt/gem_concurrent_blit/gtt-bcs-overwrite-source-forked fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84891#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BYT/BSW Bisected full-ppgtt] igt/gem_concurrent_blit/gtt-bcs-overwrite-source-forked fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84891">bug 84891</a>
from <span class="vcard"><a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> <span class="fn">Guo Jinxian</span></a>
</span></b>
<pre>3e766b8255efb6c994e6501be2af44b4bdc4d191 is the first bad commit
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
AuthorDate: Tue Sep 23 15:15:51 2014 +0200
Commit: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
CommitDate: Wed Sep 24 14:36:57 2014 +0200
igt/gem_concurrent_blit: Only read back a few GTT values
Due to the nature of the test, we can be reasonably sure that it is
either all copied or not. So we can sacrificing testing the entire
buffer for the expected value in order to speed up the test by only
testing along the diagonal.
Bugzilla: <a class="bz_bug_link
bz_status_VERIFIED bz_closed"
title="VERIFIED FIXED - [BSW]igt/gem_concurrent_blit some subcases cause long time to execute"
href="show_bug.cgi?id=84354">https://bugs.freedesktop.org/show_bug.cgi?id=84354</a>
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
:040000 040000 5b32918646a47efebfe8fadb39be98af92d1b8cf
920b72d176094ba494a09400a1b8b7b4491b732d M tests
[root@x-bsw01 tests]# ./gem_concurrent_blit --run-subtest
gtt-bcs-overwrite-source-forked
IGT-Version: 1.8-gc049c39 (x86_64) (Linux:
3.18.0-rc3_drm-intel-nightly_b921a5_20141109+ x86_64)
using 2x512 buffers, each 1MiB
Test assertion failure function gtt_cmp_bo, file gem_concurrent_blit.c:124:
Failed assertion: vaddr[y*width+y] == val
error: 0x46eef3 != 0xf
child 6 failed with exit status 99
Subtest gtt-bcs-overwrite-source-forked: FAIL (3.269s)
[root@x-bsw01 tests]# dmesg -r|egrep "<[1-4]>"|grep drm
<3>[10555.596945] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
pipe B underrun
<3>[10555.596982] [drm:valleyview_pipestat_irq_handler [i915]] *ERROR* CPU pipe
B FIFO underrun</pre>
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