compiz crashed with SIGSEGV in g_type_check_instance_is_a()

[deuterium]

Binary package hint: unity

On the unity menu, I right clicked on my USB phone and selected "Safely Remove". The animation where the icon shrinks and slides up did not finish and everything froze. Several seconds later, window decorations disappeared, and dialog notified me that compiz had crashed.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: unity 3.6.4-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-6.34-generic-pae 2.6.38-rc7
Uname: Linux 2.6.38-6-generic-pae i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Mon Mar 14 22:12:13 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_NZ:en
 LANG=en_NZ.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xb74709f4 <g_type_check_instance_is_a+212>: mov (%edi),%eax
 PC (0xb74709f4) ok
 source "(%edi)" (0xffffd400) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 g_type_check_instance_is_a () from /usr/lib/libgobject-2.0.so.0
 g_volume_get_drive () from /usr/lib/libgio-2.0.so.0
 DeviceLauncherIcon::OnStopDriveReady(_GObject*, _GAsyncResult*, DeviceLauncherIcon*) () from /usr/lib/compiz/libunityshell.so
 g_simple_async_result_complete () from /usr/lib/libgio-2.0.so.0
 ?? () from /usr/lib/gio/modules/libgioremote-volume-monitor.so
Title: compiz crashed with SIGSEGV in g_type_check_instance_is_a()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 lookup_iface_entry_I (type_instance=0x917d4d8, iface_type=148828968) at /build/buildd/glib2.0-2.28.2/./gobject/gtype.c:561
 type_lookup_iface_vtable_I (type_instance=0x917d4d8, iface_type=148828968) at /build/buildd/glib2.0-2.28.2/./gobject/gtype.c:616
 type_node_check_conformities_UorL (type_instance=0x917d4d8, iface_type=148828968) at /build/buildd/glib2.0-2.28.2/./gobject/gtype.c:3445
 type_node_conforms_to_U (type_instance=0x917d4d8, iface_type=148828968) at /build/buildd/glib2.0-2.28.2/./gobject/gtype.c:3475
 g_type_check_instance_is_a (type_instance=0x917d4d8, iface_type=148828968) at /build/buildd/glib2.0-2.28.2/./gobject/gtype.c:3961

[Launchpad Janitor (janitor)]

This bug was fixed in the package unity - 3.6.6-0ubuntu1

---------------
unity (3.6.6-0ubuntu1) natty; urgency=low

  * New upstream release:
    - drag and drop from dash to launcher issues (LP: #727675)
    - unity-panel-service crashed in g_type_class_meta_marshal (LP: #727788)
    - Dash: first-use text entry does not work until Alt-F2 version is used
      (LP: #735342)
    - compiz crashed with SIGSEGV in g_type_check_instance_is_a()
      (LP: #734721)
    - drag from dash to launcher (LP: #662616)
    - Dash - Create single widget for Dashboard (LP: #683729)
    - [FFe] Recently installed applications should be easy to run
      (LP: #670403)
    - Pressing Alt key does not underline mnemonics (LP: #689179)
    - indicator-appmenu breaks Alt accelerator keys (LP: #663030)
    - can't pin KTouch to the launcher (LP: #693755)
    - Unity paints multiple times with multi-screen (LP: #727116)
    - unitymtgrabhandles crashes when no key is set (LP: #727144)
    - SIGSEGV in PlaceEntryHome::SetSearch (LP: #731927)
    - [launcher] New Default favorites (LP: #714707)
    - Dash: Alt-F2 Pressing enter on the dash can start the first entry of the
      second group from the history (LP: #734738)
    - Dash: keyboard arrow navigation disappears off bottom (LP: #735347)
    - Increase the size of the top left Launcher reveal area from 1px to a 3px
      by 3px square (LP: #736034)
    - [dash] scrollbar's clickable zone should extend to the right border of
      the dash border (LP: #651398)
    - Launcher - Replace Dash lens Launcher icons with updated versions
      (LP: #676613)
    - NuxUtilAccessible requires to implement support to key event listeners
      (LP: #702672)
    - launcher icons dnd doesn't behave correctly when the dash is in use
      (LP: #708885)
    - Keyboard-navigation: highlight stays after losing focus (LP: #713632)
    - Implement AtkComponent for ATK objects in the panel service
      (LP: #715297)
    - Super shortcuts for application place and worskspace swither conflicts
      with compiz keys (LP: #723273)
    - Use DeeIndex instead of strcmp in PlaceEntryHome (LP: #724886)
    - [dash] text cursor not vertically centred in the entry (LP: #724927)
    - Moving cursor in dash text entry field causes cursor artifacts
      (LP: #725493)
    - Missing "children_changed" event emission from the atk support
      (LP: #727137)
    - Typing should immediately search; focusing the search field is fiddly
      (LP: #727295)
    - "Find Internet Apps", "Browse the Web", and "Check Mail" are scattered
      in default Dash (LP: #729009)
    - Press-holding on a icon in the Launcher should de-couple the icon and
      enable the user to reorder the icon vertically without leaving the
      Launcher. (LP: #727922)
    - "Shortcuts" heading in Dash seems pointless (LP: #729000)
    - intellihide is incompatible with totem fullscreen / Still some false
      positive on ws switch (LP: #730679)
    - Launcher - provide visual design for launcher keyboard navigation
      (LP: #702490)
    - Dash - Update the 'Shortcuts' dash home icon (LP: #689763)
    - The Unity panel service Does not connect to the
      INDICATOR_OBJECT...