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    <body><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> changed
              <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED DUPLICATE - [BSW PPGTT Bisected]igt/gem_ring_sync_loop causes system hang"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=88987">bug 88987</a>
          <br>
             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Status</td>
           <td>NEW
           </td>
           <td>RESOLVED
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Resolution</td>
           <td>---
           </td>
           <td>DUPLICATE
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Summary</td>
           <td>[BSW PPGTT]igt/gem_ring_sync_loop causes system hang
           </td>
           <td>[BSW PPGTT Bisected]igt/gem_ring_sync_loop causes system hang
           </td>
         </tr></table>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED DUPLICATE - [BSW PPGTT Bisected]igt/gem_ring_sync_loop causes system hang"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=88987#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED DUPLICATE - [BSW PPGTT Bisected]igt/gem_ring_sync_loop causes system hang"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=88987">bug 88987</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>(In reply to Jani Nikula from <a href="show_bug.cgi?id=88987#c1">comment #1</a>)
<span class="quote">> Probably dupe of <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - [BSW ppgtt Bisected]igt/gem_evict_everything/major-hang causes system hang"
   href="show_bug.cgi?id=88652">bug 88652</a>.</span >

Yes. I tested on commit 21076372afe711072b9a447f22a098691dd0b2cb, it doesn't
exit testing and GPU hang, but not system hang, so report <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [BSW]igt/gem_ring_sync_loop causes GPU hang"
   href="show_bug.cgi?id=89060">bug 89060</a> to track
the gpu hang.
Bisect shows: 6d3d8274bc45de4babb62d64562d92af984dd238 is the first bad commit.
commit 6d3d8274bc45de4babb62d64562d92af984dd238
Author:     Nick Hoath <<a href="mailto:nicholas.hoath@intel.com">nicholas.hoath@intel.com</a>>
AuthorDate: Thu Jan 15 13:10:39 2015 +0000
Commit:     Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
CommitDate: Tue Jan 27 09:50:53 2015 +0100

    drm/i915: Subsume intel_ctx_submit_request in to drm_i915_gem_request

    Move all remaining elements that were unique to execlists queue items
    in to the associated request.

    Issue: VIZ-4274

    v2: Rebase. Fixed issue of overzealous freeing of request.
    v3: Removed re-addition of cleanup work queue (found by Daniel Vetter)
    v4: Rebase.
    v5: Actual removal of intel_ctx_submit_request. Update both tail and
postfix
    pointer in __i915_add_request (found by Thomas Daniel)
    v6: Removed unrelated changes

    Signed-off-by: Nick Hoath <<a href="mailto:nicholas.hoath@intel.com">nicholas.hoath@intel.com</a>>
    Reviewed-by: Thomas Daniel <<a href="mailto:thomas.daniel@intel.com">thomas.daniel@intel.com</a>>
    [danvet: Reformat comment with strange linebreaks.]
    Signed-off-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>

*** This bug has been marked as a duplicate of <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - [BSW ppgtt Bisected]igt/gem_evict_everything/major-hang causes system hang"
   href="show_bug.cgi?id=88652">bug 88652</a> ***</pre>
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