gdm-simple-slave crashed with SIGSEGV in _nss_compat_getpwnam_r()

[MarcinStac]

Yo! did install ldxm from console, after choose openbox from kdm and had openbox for 5 seconds..then the bug came and bite my system..Peace

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: gdm 3.0.4-0ubuntu6
ProcVersionSignature: Ubuntu 3.0.0-5.6-generic 3.0.0-rc7
Uname: Linux 3.0.0-5-generic i686
Architecture: i386
Date: Tue Jul 19 18:38:53 2011
ExecutablePath: /usr/lib/gdm/gdm-simple-slave
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110531.1)
ProcCmdline: /usr/lib/gdm/gdm-simple-slave --display-id /org/gnome/DisplayManager/Display1
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SegvAnalysis:
 Segfault happened at: 0xe815d7 <_nss_compat_getpwnam_r+55>: movzbl (%edx),%eax
 PC (0x00e815d7) ok
 source "(%edx)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gdm
StacktraceTop:
 _nss_compat_getpwnam_r () from /lib/i386-linux-gnu/libnss_compat.so.2
 getpwnam_r () from /lib/i386-linux-gnu/libc.so.6
 getpwnam () from /lib/i386-linux-gnu/libc.so.6
 ?? ()
 ?? ()
Title: gdm-simple-slave crashed with SIGSEGV in _nss_compat_getpwnam_r()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #805154, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.