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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 --- - [BDW bisected]igt/kms_plane and kms_cursor_crc some subcases fail"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=83640">bug 83640</a>
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          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
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         <tr>
           <td style="text-align:right;">Status</td>
           <td>NEEDINFO
           </td>
           <td>ASSIGNED
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            <b><a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED --- - [BDW bisected]igt/kms_plane and kms_cursor_crc some subcases fail"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=83640#c5">Comment # 5</a>
              on <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED --- - [BDW bisected]igt/kms_plane and kms_cursor_crc some subcases fail"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=83640">bug 83640</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>(In reply to <a href="show_bug.cgi?id=83640#c4">comment #4</a>)
<span class="quote">> Hi Guo,

> Could you please revert this patch to validate the bisect?

> I don't believe this bisect result is valid and tested here and still face
> the issue with the revert.

> So if you face the same could you please bisect a little further to find the
> proper ofending commit?</span >

Yes, The bisect result is invalid. I tried on both kernel and igt, and doesn't
find good commit.

I tried rollback igt to commit(c12f292b1d8bbc61b65f1dfc3fd4a9e1e286dbee), and
found the failure is same as <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED --- - [IVB/BDW Bisected]igt/kms_mmio_vs_cs_flip/setcrtc_vs_cs_flip fails"
   href="show_bug.cgi?id=81377">bug 81377</a>. This bug should be duplicated with <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED --- - [IVB/BDW Bisected]igt/kms_mmio_vs_cs_flip/setcrtc_vs_cs_flip fails"
   href="show_bug.cgi?id=81377">bug
81377</a>.

root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_plane
--run-subtest plane-position-covered-pipe-C-plane-1
IGT-Version: 1.7-gc12f292 (x86_64) (Linux:
3.17.0-rc6_drm-intel-nightly_7101d8_20140928+ x86_64)
Testing connector eDP-1 using pipe C plane 1
Test assertion failure function igt_wait_for_vblank, file igt_kms.c:1589:
Failed assertion: drmWaitVBlank(drm_fd, &wait_vbl) == 0
Last errno: 16, Device or resource busy
Subtest plane-position-covered-pipe-C-plane-1: FAIL</pre>
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