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[solie <848895@xxxxxxxxxxxxxxxxxx>]

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https://bugs.launchpad.net/bugs/848895

Title:
  lightdm crashed with SIGSEGV in initialize_password_db()

Status in “lightdm” package in Ubuntu:
  Invalid

Bug description:
  after successfully logged in unity, this error reporting come up
  randomly, and I can't re-login after exit/logout from both unity or
  gnome3, so when I want to switch between gnome or unity, i had to
  reboot, sudo service lightdm restart not working

  ProblemType: Crash
  DistroRelease: Ubuntu 11.10
  Package: lightdm 0.9.3-0ubuntu8
  Uname: Linux 3.0-4.dmz.1-liquorix-686 i686
  Architecture: i386
  Date: Tue Sep 13 15:20:04 2011
  Disassembly: => 0x0:	Cannot access memory at address 0x0
  ExecutablePath: /usr/sbin/lightdm
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110803.1)
  ProcCmdline: lightdm
  ProcEnviron: PATH=(custom, no user)
  SegvAnalysis:
   Segfault happened at: 0x0:	Cannot access memory at address 0x0
   PC (0x00000000) not located in a known VMA region (needed executable region)!
   Stack memory exhausted (SP below stack segment)
  SegvReason: executing NULL VMA
  Signal: 11
  SourcePackage: lightdm
  StacktraceTop:
   ?? ()
   ?? () from /lib/security/pam_smbpass.so
   initialize_password_db () from /lib/security/pam_smbpass.so
   pam_sm_authenticate () from /lib/security/pam_smbpass.so
   ?? () from /lib/i386-linux-gnu/libpam.so.0
  Title: lightdm crashed with SIGSEGV in initialize_password_db()
  UpgradeStatus: Upgraded to oneiric on 2011-09-07 (6 days ago)
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