Xorg crashed with SIGSEGV in swlDalHelperClose()

[Jeremy]

after switching to the fglrx video driver from the ati driver, I ran dpkg-reconfigure --phigh xserver-xorg and then restarted gdm, which caused the system to lock up. I rebooted and after the loading bar the display would flicker for a bit and then freeze completely. I had to boot from a livecd and revert xorg.conf back to an older version to get back into my system.

ProblemType: Crash
Architecture: amd64
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/Xorg
NonfreeKernelModules: fglrx
Package: xserver-xorg-core 2:1.6.0-0ubuntu11 [modified: usr/lib/xorg/modules/extensions/libdri.so usr/lib/xorg/modules/extensions/libglx.so]
ProcAttrCurrent: unconfined
ProcCmdline: /usr/X11R6/bin/X :0 -br -audit 0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt9
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
ProcVersion: Linux version 2.6.28-11-generic (buildd@crested) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #40-Ubuntu SMP Fri Apr 3 17:39:41 UTC 2009
Signal: 11
SourcePackage: xorg-server
StacktraceTop:
 swlDalHelperClose ()
 atiddxFreeScreen ()
 xf86DeleteScreen ()
 InitOutput ()
 main ()
Title: Xorg crashed with SIGSEGV in swlDalHelperClose()
Uname: Linux 2.6.28-11-generic x86_64
UserGroups:

XorgLogOld:

[lspci]
00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub [8086:2a00] (rev 03)
     Subsystem: Dell Device [1028:0254]
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Mobility Radeon HD 3400 Series [1002:95c4]
     Subsystem: Dell Device [1028:0254]

[Apport retracing service (apport)]

StacktraceTop:swlDalHelperClose ()
atiddxFreeScreen ()
xf86DeleteScreen (scrnIndex=0,
InitOutput (pScreenInfo=0x7de280, argc=10,
main (argc=10, argv=0x7fffefa86718,

[Alberto Milone (albertomilone)]

Can you see if you can still reproduce the problem with the latest driver in Ubuntu Karmic, please?

[Jeremy (jeremy127)]

I've switched between video drivers a couple times in karmic and haven't run into the problem.

[Alberto Milone (albertomilone)]

I'm closing this bug report as the problem seems to be fixed in Karmic