Xorg crashed with SIGSEGV in FatalError() / OsInit() while trying to install linux-headers 2.6.31-9-rt

[Gerhard Lang]

headers are installed, then system asks for grub's dev, marking one, hit enter --> this alert

ProblemType: Crash
Architecture: i386
Date: Thu Jan 7 19:42:53 2010
DistroRelease: Ubuntu 10.04
ExecutablePath: /usr/bin/Xorg
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100106)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
NonfreeKernelModules: nvidia
Package: xserver-xorg-core 2:1.7.3.901-1ubuntu4 [modified: usr/lib/xorg/modules/extensions/libglx.so]
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-9-generic-pae root=/dev/sdb3
ProcCmdline: /usr/bin/X :0 -br -verbose -auth /var/run/gdm/auth-for-gdm-dGgCaD/database -nolisten tcp
ProcEnviron:
 LANG=de_DE.UTF-8
 PATH=(custom, no user)
ProcVersionSignature: Ubuntu 2.6.32-9.13-generic-pae
RelatedPackageVersions:
 xserver-xorg 1:7.5~3ubuntu4
 libgl1-mesa-glx 7.6.1~rc3-1ubuntu1
 libdrm2 2.4.14-1ubuntu2
 xserver-xorg-video-intel 2:2.9.1-1ubuntu1
 xserver-xorg-video-ati 1:6.12.99+git20091125.0061c4db-0ubuntu1
SegvAnalysis:
 Segfault happened at: 0x249137 <strchrnul+23>: mov (%eax),%cl
 PC (0x00249137) ok
 source "(%eax)" (0x0000000b) not located in a known VMA region (needed readable region)!
 destination "%cl" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: xorg-server
StacktraceTop:
 ?? ()
 FatalError ()
 LockServer ()
 OsInit ()
 _start ()
Tags: lucid
Title: Xorg crashed with SIGSEGV in FatalError()
Uname: Linux 2.6.32-9-generic-pae i686
UserGroups:

dmi.bios.date: 12/17/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P2.80
dmi.board.name: AM2NF3-VSTA
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.80:bd12/17/2008:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnAM2NF3-VSTA:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
fglrx: Not loaded
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro: Ubuntu
 architecture: i686kernel: 2.6.32-9-generic-pae

[Apport retracing service (apport)]

StacktraceTop:
 ?? ()
 ?? ()
 LockServer ()
 OsInit ()
 _start ()
ThreadStacktrace:

[Bryce Harrington (bryce)]

I believe this X crash is due to error messages being printed to the log file after the log file has been closed. This was being done in the signal handler due to a Ubuntu patch. I've corrected the patch to not print these errors, which should eliminate this crash.

However, still whatever problem had caused the X error to begin with is still there, and it is likely that X will still be failing, just without crashing (or perhaps with a different kind of crash). This crash is hiding that information however. So the good news is hopefully this will unhide that information. After updating to version 2:1.7.3.902-1ubuntu7 please re-test your original issue; if it still occurs file a new bug. Hopefully apport will provide better information in this case now.

[Launchpad Janitor (janitor)]

This bug was fixed in the package xorg-server - 2:1.7.3.902-1ubuntu7

---------------
xorg-server (2:1.7.3.902-1ubuntu7) lucid; urgency=low

  * Update 100_rethrow_signals.patch: Don't log more error messages after
    the log has been closed, else it causes a SIGSEGV (signal 11) crash
    under several different conditions, including on even ordinary error
    exits.
    (LP: #506510, #507345, #506977, #504497, #507083)
 -- Bryce Harrington <email address hidden> Fri, 15 Jan 2010 15:22:34 -0800