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[Bug 874200] Re: segfault when switching user

 

Thank you for taking the time to report this bug and helping to make
Ubuntu better. Please try to obtain a backtrace following the
instructions at http://wiki.ubuntu.com/DebuggingProgramCrash and upload
the backtrace (as an attachment) to the bug report. This will greatly
help us in tracking down your problem.

Could you also add your lightdm.log log to the bug?

** Changed in: lightdm (Ubuntu)
   Importance: Undecided => High

** Changed in: lightdm (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/874200

Title:
  segfault when switching user

Status in “lightdm” package in Ubuntu:
  Incomplete

Bug description:
  When switching to another user lightdm hangs after entering password.
  Cursor just can't enter the field again. Dmesg shows the following:

  ...
  [   67.824062] hub 2-0:1.0: unable to enumerate USB device on port 2
  [17534.653543] show_signal_msg: 36 callbacks suppressed
  [17534.653553] lightdm[4737]: segfault at 0 ip   (null) sp b5dff14c error 4 in libglib-2.0.so.0.3000.0[110000+f7000]
  [17534.666035] init: lightdm main process (886) killed by SEGV signal
  [17685.206223] compiz[1674]: segfault at 0 ip b6bdb4f7 sp bfc713d0 error 6 in libnvidia-glcore.so.280.13[b5b2d000+18a0000]
  [17807.583211] init: tty1 main process ended, respawning
  [17809.882622] init: tty1 main process ended, respawning

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: lightdm 1.0.1-0ubuntu6
  ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
  Uname: Linux 2.6.38-11-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 1.23-0ubuntu3
  Architecture: i386
  CheckboxSubmission: b346f016d264f3ef62407d5e29c198a2
  CheckboxSystem: daed2f3d6643b4a84b4520a2427f8c2b
  Date: Fri Oct 14 15:57:05 2011
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: lightdm
  UpgradeStatus: Upgraded to oneiric on 2011-10-02 (12 days ago)

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References