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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_ASSIGNED "
   title="ASSIGNED --- - igt/gem_close_race fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=71029">bug 71029</a>
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          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Status</td>
           <td>NEEDINFO
           </td>
           <td>ASSIGNED
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        <div>
            <b><a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED --- - igt/gem_close_race fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=71029#c7">Comment # 7</a>
              on <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED --- - igt/gem_close_race fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=71029">bug 71029</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 <a href="show_bug.cgi?id=71029#c6">comment #6</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=71029#c5">comment #5</a>)
> > See <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - oopses in i915_gem_free_request()"
   href="show_bug.cgi?id=70874">bug 70874</a>.

> I.e. please test the patch attached there.</span >

Test the patch on Ironlake. Run more than 1 hour, the test doesn't exit. 
output:
Subtest process-exit: SUCCESS

dmesg:
[ 5201.186618] [drm:i915_gem_open],
[ 5201.195147] [drm:i915_gem_open],
[ 5201.219552] [drm:i915_gem_open],
[ 5201.227760] [drm:i915_gem_open],
[ 5201.236246] [drm:i915_gem_open],
[ 5201.258691] [drm:i915_gem_open],
[ 5201.266885] [drm:i915_gem_open],
[ 5201.266911] [drm:i915_gem_open],
[ 5201.290080] [drm:i915_gem_open],
[ 5201.290105] [drm:i915_gem_open],
[ 5201.297611] [drm:i915_gem_open],
[ 5201.305690] [drm:i915_gem_open],</pre>
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