<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [BYT/HSW/BDW/BSW Bisected ]system sporadically boot fail" href="https://bugs.freedesktop.org/show_bug.cgi?id=81140#c39">Comment # 39</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [BYT/HSW/BDW/BSW Bisected ]system sporadically boot fail" href="https://bugs.freedesktop.org/show_bug.cgi?id=81140">bug 81140</a> from <a class="email" href="mailto:lei.a.liu@intel.com" title="liulei <lei.a.liu@intel.com>"> liulei</a> <pre>> - Please take the normal config and change config options step-by-step > (yeah, this will take time so lower priority) until the kernel is stable. > Then report which config option makes the kernel stable. Since it usually > just takes a few reboots to hit the problem on broken kernels it's better to > start with the broken .config: That way you don't have to boot 10+ times to > make sure it really works, but can proceed to the next config option after > the first hang. Hi, according my preliminary bisect,bellow two configs can decrease boot failure rate, if add them in "normal.config". CONFIG_PROVE_LOCKING=y CONFIG_DEBUG_KERNEL=y</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>