|Summary:||System freeze after pressing ctrl-alt-bs.|
|Status:||RESOLVED FIXED||QA Contact:||Xorg Project Team <xorg-team>|
|i915 platform:||i915 features:|
Xorg log with the backtrace crash.
Backtrace of the crash from the core dump.
Xorg configuration file
Description Raúl 2007-04-29 04:42:53 UTC
After using Xorg for a while I decide to log out, then I go back to the kdm login screen. If I press ctrl-alt-bs to force a kill of the server the system will freeze. I'm not sure if that always happens, but most cases it does. I have tried using ctrl-alt-del, alt-sysrq key combinations to reboot at least but I was unsuccessfull so all I could do it power off my machine. I own a Dell inspirom 510m laptop with a 855GM video card running 2.6.21 and debian unstable right now. I attach an Xorg log, a backtrace of the core dump and also my xorg configuration.
Comment 1 Raúl 2007-04-29 04:43:37 UTC
Created attachment 9793 [details] Xorg log with the backtrace crash.
Comment 2 Raúl 2007-04-29 04:44:01 UTC
Created attachment 9794 [details] Backtrace of the crash from the core dump.
Comment 4 Raúl 2007-04-29 04:54:26 UTC
Paying attention to the backtrace I think this is more possibly a Mesa bug. Sorry for the nuissances.
Comment 5 Lann Martin 2007-07-23 10:23:08 UTC
*** Bug 11306 has been marked as a duplicate of this bug. ***
Comment 6 Lann Martin 2007-07-23 10:27:30 UTC
I am getting similar behavior; suspect its related to fixed #10664. This MIGHT be a bug for i810 (but I won't reassign).
Comment 7 Conn 2007-07-26 16:58:06 UTC
Hardware: Dell Inspiron 510m laptop, 512mb RAM Chipset: 00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02) Software: Ubuntu Gutsy, xserver-xorg-core 2:188.8.131.52.dfsg-6ubuntu2, xserver-xorg-video-intel 2:2.1.0-1ubuntu1, libgl1-mesa-dri 7.0.0-0ubuntu2 I can confirm the same behaviour as Raul, and I too suspect it's a Mesa issue, directly or indirectly. Additionally, there is a way to make this freeze 100% reproducible: Case a) 1. Start GDM/KDM session without running compiz (or other 3D applications) 2. Restart X by logging out or pressing Ctrl+Alt+Backspace Case b) 1. Start session and enable compiz. 2. Restart X (with or without stopping compiz beforehand, it doesn't matter) Results Using the 2.1.0 (intel) driver: Case a) will crash approximately 30% of the time, and with each successive X restart the chances of a crash exponentially rise. Case b) crashes reproducibly 100% of the time. Using the 1.7.4 (i810) driver: Neither case causes a crash. Perhaps this is related to my other bug #11432, in which X crashes 100% reproducibly when pressing the laptop lid switch (and I've isolated the commit that introduced the regression since driver 1.7.4, details are in that bug report).
Comment 8 Samuel Thibault 2007-08-21 06:45:34 UTC
Note: this really a problematic bug for computer rooms where students keep logging in & out...
Comment 9 Lukas Hejtmanek 2007-08-22 15:20:33 UTC
This patch fixes the problem. http://lists.freedesktop.org/archives/xorg/2007-August/027467.html
Comment 10 Lukas Hejtmanek 2007-08-22 15:21:50 UTC
consider to report the solution to packages maintainers (debian, ubuntu) to get it fixed in the packages.
Comment 11 Samuel Thibault 2007-08-22 16:30:40 UTC
Seems to work fine for me.
Comment 12 Raúl 2007-09-07 18:32:40 UTC
It's also working for me.