gnome-settings-daemon crashed with SIGSEGV in idle_set_mode()

[DCuser]

Ubuntu 12.04.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: gnome-settings-daemon 3.2.2-0ubuntu11
ProcVersionSignature: Ubuntu 3.2.0-10.17-generic 3.2.1
Uname: Linux 3.2.0-10-generic i686
ApportVersion: 1.91-0ubuntu1
Architecture: i386
CrashCounter: 1
Date: Mon Jan 23 23:52:35 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
ProcCmdline: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
SegvAnalysis:
 Segfault happened at: 0x5edd6ab: mov 0x8(%eax),%eax
 PC (0x05edd6ab) ok
 source "0x8(%eax)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-settings-daemon
StacktraceTop:
 ?? () from /usr/lib/gnome-settings-daemon-3.0/libpower.so
 ?? () from /usr/lib/gnome-settings-daemon-3.0/libpower.so
 g_cclosure_marshal_VOID(unsigned int0_t) () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 g_closure_invoke () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
Title: gnome-settings-daemon crashed with SIGSEGV in g_cclosure_marshal_VOID()
UpgradeStatus: Upgraded to precise on 2012-01-23 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 idle_set_mode (manager=0x8575800, mode=<optimized out>) at gsd-power-manager.c:2675
 idle_evaluate (manager=0x8575800) at gsd-power-manager.c:2918
 idle_evaluate (manager=0x8575800) at gsd-power-manager.c:2876
 g_cclosure_marshal_VOID__UINT (closure=0x858c4b8, return_value=0x0, n_param_values=2, param_values=0x86afcc8, invocation_hint=0xbfb307a0, marshal_data=0x0) at /build/buildd/glib2.0-2.31.12/./gobject/gmarshal.c:259
 g_closure_invoke (closure=0x858c4b8, return_value=0x0, n_param_values=2, param_values=0x86afcc8, invocation_hint=0xbfb307a0) at /build/buildd/glib2.0-2.31.12/./gobject/gclosure.c:774