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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [PNV/BSW Bisected]igt/kms_pipe_crc_basic/read-crc-pipe-A-frame-sequence is slow"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75079#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [PNV/BSW Bisected]igt/kms_pipe_crc_basic/read-crc-pipe-A-frame-sequence is slow"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75079">bug 75079</a>
from <span class="vcard"><a class="email" href="mailto:huax.lu@intel.com" title="lu hua <huax.lu@intel.com>"> <span class="fn">lu hua</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=109014" name="attach_109014" title="dmesg(BSW)">attachment 109014</a> <a href="attachment.cgi?id=109014&action=edit" title="dmesg(BSW)">[details]</a></span>
dmesg(BSW)
<span class="quote">> What is this? You say BSW, hostname says hsw. BSW does not support VGA. So
> please retest on BSW and attach the correct log.</span >
Both BDW and BSW have this issue. <a href="show_bug.cgi?id=75079#c6">comment 6</a>'s <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - [PNV/IVB/HSW regression]igt//kms_pipe_crc_basic/read-crc-pipe-A is slow"
href="show_bug.cgi?id=77475">bug 77475</a> mentioned HSW. <a href="show_bug.cgi?id=75079#c8">Comment
8</a> says BSW also has this issue, in order to illustrate BSW's test status.
Test on BSW with latest -nightly kernel, the timeout is unstable.
output:
[root@x-bsw01 tests]# time ./kms_pipe_crc_basic --run-subtest
read-crc-pipe-A-frame-sequence
IGT-Version: 1.8-ga973aab (x86_64) (Linux:
3.18.0-rc3_drm-intel-nightly_0642a5_20141106+ x86_64)
read-crc-pipe-A-frame-sequence: Testing connector eDP-1 using pipe A
Test assertion failure function test_read_crc_for_output, file
kms_pipe_crc_basic.c:188:
Failed assertion: igt_crc_equal(&crcs[j], &crcs[j + 1])
Subtest read-crc-pipe-A-frame-sequence: FAIL (2.051s)
real 0m4.587s
user 0m0.010s
sys 0m0.074s
[root@x-bsw01 tests]# time ./kms_pipe_crc_basic --run-subtest
read-crc-pipe-A-frame-sequence
IGT-Version: 1.8-ga973aab (x86_64) (Linux:
3.18.0-rc3_drm-intel-nightly_0642a5_20141106+ x86_64)
read-crc-pipe-A-frame-sequence: Testing connector eDP-1 using pipe A
Subtest read-crc-pipe-A-frame-sequence: TIMEOUT (6.993s)
real 0m9.537s
user 0m0.015s
sys 0m0.062s</pre>
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