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[Launchpad Bug Tracker <1531684@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1300463 ***
    https://bugs.launchpad.net/bugs/1300463

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: unity-settings-daemon (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1531684

Title:
  unity-settings-daemon crashed with SIGSEGV in malloc_consolidate()

Status in unity-settings-daemon package in Ubuntu:
  Confirmed

Bug description:
  lightdm crashes after opening window in Thunderbird.

  ProblemType: Crash
  DistroRelease: Ubuntu 15.10
  Package: unity-settings-daemon 15.04.1+15.10.20151029-0ubuntu1
  ProcVersionSignature: Ubuntu 4.2.0-22.27-generic 4.2.6
  Uname: Linux 4.2.0-22-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Jan  6 18:03:07 2016
  ExecutablePath: /usr/lib/unity-settings-daemon/unity-settings-daemon
  InstallationDate: Installed on 2014-08-30 (494 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  ProcCmdline: /usr/lib/unity-settings-daemon/unity-settings-daemon
  SegvAnalysis:
   Segfault happened at: 0x7f90f45dd1e9 <malloc_consolidate+329>:	cmp    0x18(%r11),%rbx
   PC (0x7f90f45dd1e9) ok
   source "0x18(%r11)" (0x27521d000000018) not located in a known VMA region (needed readable region)!
   destination "%rbx" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: unity-settings-daemon
  StacktraceTop:
   malloc_consolidate (av=av@entry=0x7f90f4922c00 <main_arena>) at malloc.c:4142
   _int_malloc (av=av@entry=0x7f90f4922c00 <main_arena>, bytes=bytes@entry=4096) at malloc.c:3417
   __libc_calloc (n=<optimized out>, elem_size=<optimized out>) at malloc.c:3213
   g_malloc0 () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
  Title: unity-settings-daemon crashed with SIGSEGV in malloc_consolidate()
  UpgradeStatus: Upgraded to wily on 2015-11-05 (62 days ago)
  UserGroups: adm audio cdrom dip fuse lpadmin plugdev pulse pulse-access sambashare sudo video
  upstart.unity-settings-daemon.log:
   (unity-settings-daemon:3042): GLib-GIO-CRITICAL **: g_dbus_proxy_get_object_path: assertion 'G_IS_DBUS_PROXY (proxy)' failed
   
   (unity-settings-daemon:3042): GLib-GIO-CRITICAL **: g_dbus_proxy_get_object_path: assertion 'G_IS_DBUS_PROXY (proxy)' failed

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