<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [HSW/BYT/BDW Bisected ]system sporadically boot fail" href="https://bugs.freedesktop.org/show_bug.cgi?id=81140#c14">Comment # 14</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [HSW/BYT/BDW 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>Excuse my stupid debug method i add two lines log message. printk(KERN_WARNING "fb_info %p registered_fb %p",fb_info,registered_fb[i]); if (i < 0 || i >= FB_MAX || ( registered_fb[i] != fb_info )) return -EINVAL; printk(KERN_WARNING "Pass this line?" ); On HSW, log shows [ 2.082948]fb_info ffff8801454fc800 registered_fb ffff8801454fc800 (this is last line) On BDW, log shows [ 27.535818] fb: switching to inteldrmfb from EFI VGA [ 27.535821] fb_info ffff880149e06000 registered_fb ffff880149e06000 [ 27.673416] Pass this line? [ 27.673418] Console: switching to colour dummy device 80x25 My last comment based on HSW machine debug, may be it's not accurate.I will feel such grateful, if someone takes a minute to educate me why this happen.</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>