Xorg crashed with SIGSEGV in _Unwind_Backtrace()

[www.mgazelle.com]

Happened during normal PC use with no special tasks

ProblemType: Crash
Architecture: amd64
Date: Sat Mar 6 13:06:13 2010
DistroRelease: Ubuntu 10.04
DkmsStatus: Error: [Errno 2] No such file or directory
ExecutablePath: /usr/bin/Xorg
MachineType: CLEVO CO. M570TU
Package: xserver-xorg-core 2:1.7.5-1ubuntu2
ProcCmdLine: root=UUID=9ea1d9e8-aec8-44aa-853b-30180ecf6ae0 ro quiet splash
ProcCmdline: /usr/bin/X :0 -nr -verbose -auth /var/run/gdm/auth-for-gdm-1sSf92/database -nolisten tcp vt7
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
ProcVersionSignature: Ubuntu 2.6.32-15.22-generic
SegvAnalysis:
 Segfault happened at: 0x7f9c09b76be7: cmpb $0x48,(%rax)
 PC (0x7f9c09b76be7) ok
 source "$0x48" ok
 destination "(%rax)" (0x00000008) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: nvidia-graphics-drivers
StacktraceTop:
 ?? () from /lib/libgcc_s.so.1
 _Unwind_Backtrace () from /lib/libgcc_s.so.1
 backtrace () from /lib/libc.so.6
 xorg_backtrace ()
 ?? ()
Title: Xorg crashed with SIGSEGV in _Unwind_Backtrace()
Uname: Linux 2.6.32-15-generic x86_64
UserGroups:

dmi.bios.date: 12/25/2008
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 1.00.12
dmi.board.asset.tag: Tag 12345
dmi.board.name: M570TU
dmi.board.vendor: CLEVO CO.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr1.00.12:bd12/25/2008:svnCLEVOCO.:pnM570TU:pvrNotApplicable:rvnCLEVOCO.:rnM570TU:rvrNotApplicable:cvnNoEnclosure:ct9:cvrN/A:
dmi.product.name: M570TU
dmi.product.version: Not Applicable
dmi.sys.vendor: CLEVO CO.
system:
 distro: Ubuntu
 codename: lucidarchitecture: x86_64kernel: 2.6.32-15-generic

[Apport retracing service (apport)]

StacktraceTop:
 ?? () from /lib/libgcc_s.so.1
 _Unwind_Backtrace () from /lib/libgcc_s.so.1
 *__GI___backtrace (array=<value optimized out>,
 xorg_backtrace ()
 ?? ()

[ticket (blog-fritzen)]

Had terrible trouble with my linux box at work today. After having used a messed "10.04-from 9.10-upgraded" installation for some weeks, the system failed completely (not even grub showing up...but that's another story to tell).

I decided to reinstall LUCID from Live CD. Then the folowing bugs occured:
- Using the LiveCD and programs such as, e.g., dolphin or firefox, a system hard crash occured twice while backing up the most important files. Non-GUI programs worked fine (konsole), as well as the installer which was launched afterwards.
- The fresh installation failed desperately after just a few minutes of use, but only when GTK or QT apps were used. A yakuake terminal window could be used for several hours.

I thought this related to the graphics card and installing the proprietary NVIDIA driver. Suddenly, no more bugs were encountered. I was able to run multiple applications with/without desktop effects enabled, OpenGL 3d accell worked fine etc.

The machine is a Intel Dual Core, Asus Mainboard, 8 GB RAM and Nvidia GT220 card (so nothing special). I am using Kubuntu 10.04 LTS 64 bit. The "sudden death" of the machine with the open source driver was a shocking experience and definitely needs to be fixed ASAP. Logs etc. are not at hand but I will try to collect some more data on monday.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[dino99 (9d9)]

That version is no more supported; please open a new bug report if the actual archive found version also has the same issue.