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            <b><a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED --- - [PNV/IVB/HSW regression]igt//kms_pipe_crc_basic/read-crc-pipe-A is slow"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=77475#c5">Comment # 5</a>
              on <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED --- - [PNV/IVB/HSW regression]igt//kms_pipe_crc_basic/read-crc-pipe-A is slow"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=77475">bug 77475</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>Created <span class=""><a href="attachment.cgi?id=99552" name="attach_99552" title="dmesg">attachment 99552</a> <a href="attachment.cgi?id=99552&action=edit" title="dmesg">[details]</a></span>
dmesg

This bug still able to reproduce on latest
-fixes(4ba4801d73d14690ed15774424e8b1d4c18323a5) on IVB

Case lest:
igt/kms_pipe_crc_basic/read-crc-pipe-A
igt/kms_pipe_crc_basic/read-crc-pipe-A-frame-sequence
igt/kms_pipe_crc_basic/read-crc-pipe-B
igt/kms_pipe_crc_basic/read-crc-pipe-B-frame-sequence
igt/kms_pipe_crc_basic/read-crc-pipe-C
igt/kms_pipe_crc_basic/read-crc-pipe-C-frame-sequence


output:
./kms_pipe_crc_basic --run-subtest read-crc-pipe-C-frame-sequence
IGT-Version: 1.6-gc75dcbd (x86_64) (Linux:
3.15.0-rc5_drm-intel-fixes_4ba480_20140521_debug+ x86_64)
read-crc-pipe-C-frame-sequence: Testing connector HDMI-A-1 using pipe C
Subtest read-crc-pipe-C-frame-sequence: TIMEOUT</pre>
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