<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <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_NEW " title="NEW --- - igt/drv_module_reload causes call trace" href="https://bugs.freedesktop.org/show_bug.cgi?id=76582">bug 76582</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>NEEDINFO </td> <td>NEW </td> </tr></table> <p> <div> <b><a class="bz_bug_link bz_status_NEW " title="NEW --- - igt/drv_module_reload causes call trace" href="https://bugs.freedesktop.org/show_bug.cgi?id=76582#c12">Comment # 12</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - igt/drv_module_reload causes call trace" href="https://bugs.freedesktop.org/show_bug.cgi?id=76582">bug 76582</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>Bisect shows: 1c61eae469e0d1d2fb9d7b77f51ca50c1f8f3ce9 is the first bad commit commit 1c61eae469e0d1d2fb9d7b77f51ca50c1f8f3ce9 Author: Christian KÃ¶nig <<a href="mailto:christian.koenig@amd.com">christian.koenig@amd.com</a>> Date: Tue Feb 18 01:50:22 2014 -0700 drm/radeon: fix CP semaphores on CIK The CP semaphore queue on CIK has a bug that triggers if uncompleted waits use the same address while a signal is still pending. Work around this by using different addresses for each sync. Signed-off-by: Christian KÃ¶nig <<a href="mailto:christian.koenig@amd.com">christian.koenig@amd.com</a>> Cc: <a href="mailto:stable@vger.kernel.org">stable@vger.kernel.org</a></pre> </div> </p> <hr> <span>You are receiving this mail because:</span> <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>