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[Paul Sladen <ubuntu@xxxxxxxxxxxxxxx>]

I just had (what I presume is the same thing), during an upgrade of the
'ubuntu-wallpapers' package while (I presume) that the
Appearance/Background wallpaper settings were open in the background.

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https://bugs.launchpad.net/bugs/808503

Title:
  gnome-control-center crashed with SIGSEGV in
  g_hash_table_lookup_node()

Status in “gnome-control-center” package in Ubuntu:
  Confirmed

Bug description:
  Not 100% reproducible. This crash usually occurs from time to time
  when selecting the background configuration applets, then back to the
  main screen by clicking on 'All Settings' without waiting for all the
  backgrounds pictures being displayed.

  TEST CASE:
  1. Launch gnome-control-center
  2. Select 'Background'
  3. Immediately click on 'All Settings'
  4. Select another applet (? Not sure this step is mandatory to reproduce the crash)

  Result:
  This crash

  ProblemType: Crash
  DistroRelease: Ubuntu 11.10
  Package: gnome-control-center 1:3.1.3-0ubuntu4
  ProcVersionSignature: Ubuntu 3.0-3.4-generic 3.0.0-rc5
  Uname: Linux 3.0-3-generic i686
  Architecture: i386
  Date: Sun Jul 10 22:24:00 2011
  EcryptfsInUse: Yes
  ExecutablePath: /usr/bin/gnome-control-center
  ProcCmdline: gnome-control-center --overview
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, user)
   LANG=en_US.utf8
  Signal: 11
  SourcePackage: gnome-control-center
  StacktraceTop:
   g_hash_table_lookup_node (hash_table=0xefedffeb, key=0x217e7aa8, value=0x1, keep_new_key=0) at /build/buildd/glib2.0-2.29.10/./glib/ghash.c:360
   g_hash_table_insert_internal (hash_table=0xefedffeb, key=0x217e7aa8, value=0x1, keep_new_key=0) at /build/buildd/glib2.0-2.29.10/./glib/ghash.c:1099
   picture_scaled (source_object=0x217e6c90, res=0x217c12c8, user_data=0x21772230) at bg-pictures-source.c:184
   g_simple_async_result_complete (simple=0x217c12c8) at /build/buildd/glib2.0-2.29.10/./gio/gsimpleasyncresult.c:749
   complete_in_idle_cb_for_thread (_data=0x215d5b98) at /build/buildd/glib2.0-2.29.10/./gio/gsimpleasyncresult.c:816
  Title: gnome-control-center crashed with SIGSEGV in g_hash_table_lookup_node()
  UpgradeStatus: Upgraded to oneiric on 2011-06-27 (13 days ago)
  UserGroups: adm admin audio cdrom dialout dip floppy fuse libvirtd lpadmin netdev plugdev scanner sudo video

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