<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [SNB, IVB libva+rc6] Page flips hang indefinitely, apparently waiting for mmio writes that never happen" href="https://bugs.freedesktop.org/show_bug.cgi?id=75502#c35">Comment # 35</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [SNB, IVB libva+rc6] Page flips hang indefinitely, apparently waiting for mmio writes that never happen" href="https://bugs.freedesktop.org/show_bug.cgi?id=75502">bug 75502</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>Created <a href="attachment.cgi?id=97221" name="attach_97221" title="Reorder semaphore deadlock detection">attachment 97221</a> <a href="attachment.cgi?id=97221&action=edit" title="Reorder semaphore deadlock detection">[details]</a> <a href='page.cgi?id=splinter.html&bug=75502&attachment=97221'>[review]</a> Reorder semaphore deadlock detection It's #54226 again, but we failed to simply kick the stuck semaphore and declared the GPU hung instead. The attached patch should detect the situation better, but the root cause behind the hangs still remains unresolved.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>