<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [HSW bisected]igt/module_reload causes [drm:hsw_unclaimed_reg_check] *ERROR* Unclaimed write to 44004 and system hang with headless, with power well disabled" href="https://bugs.freedesktop.org/show_bug.cgi?id=67813#c14">Comment # 14</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [HSW bisected]igt/module_reload causes [drm:hsw_unclaimed_reg_check] *ERROR* Unclaimed write to 44004 and system hang with headless, with power well disabled" href="https://bugs.freedesktop.org/show_bug.cgi?id=67813">bug 67813</a> from <a class="email" href="mailto:przanoni@gmail.com" title="Paulo Zanoni <przanoni@gmail.com>"> Paulo Zanoni</a> <pre>(In reply to <a href="show_bug.cgi?id=67813#c13">comment #13</a>) > Paulo, I add drm.debug=0xe to grub, the attached dmesg is full dmesg. > > > > > - Boot the machine > > - SSH to it from another machine > > - Run ./module_reload from the SSH session > > - dmesg > dmesg.txt > > > > Does that work for you? > > Because system hang, I use netconsole. > > Do you have any suggest for more dmesg? I really can't reproduce your bug. Can you please attach the full "dmesg" from right before you run module_reload? Please do it with drm.debug=0xe. Also please attach the output of "lsmod" from right before when you run module_reload. Also, please check if when you run module_reload you get some error messages about module i915 still being loaded. Also, please check whether you're just getting a backlight bug or a real full machine hang. I'm running drm-intel-nightly.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>