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            <b><a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED --- - [hsw] Cycling between GL/X rendering causes a hard hang"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=63914#c49">Comment # 49</a>
              on <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED --- - [hsw] Cycling between GL/X rendering causes a hard hang"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=63914">bug 63914</a>
              from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
        <pre>Step 1:

commit a7cd1b8fea2f341b626b255d9898a5ca5fabbf0a
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date:   Fri Jul 19 20:36:51 2013 +0100

    drm/i915: Serialize almost all register access</pre>
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