unity-2d-launcher crashed with SIGSEGV in QPainter::fillRect()

[Tom]

didn't do anything

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-2d-launcher 4.0.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3
Uname: Linux 3.0.0-9-generic i686
Architecture: i386
Date: Wed Aug 24 15:49:43 2011
ExecutablePath: /usr/bin/unity-2d-launcher
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcCmdline: unity-2d-launcher
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x1018d56: movntdq %xmm0,(%edi)
 PC (0x01018d56) ok
 source "%xmm0" ok
 destination "(%edi)" (0xb0793000) in non-writable VMA region: 0xb0793000-0xb079b000 r--p /usr/share/icons/hicolor/icon-theme.cache
SegvReason: writing VMA /usr/share/icons/hicolor/icon-theme.cache
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4
 ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4
 ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4
 ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4
 QPainter::fillRect(QRect const&, QBrush const&) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
Title: unity-2d-launcher crashed with SIGSEGV in QPainter::fillRect()
UpgradeStatus: Upgraded to oneiric on 2011-05-07 (109 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 _mm_stream_si128 (__B=..., __A=0xb0793000) at /usr/lib/i386-linux-gnu/gcc/i686-linux-gnu/4.6.1/include/emmintrin.h:1424
 qt_memfill32_sse2 (count=50688, value=4294967295, dest=0xb076d000) at painting/qdrawhelper_sse2.cpp:269
 qt_memfill32_sse2 (dest=0xb076d000, value=4294967295, count=50688) at painting/qdrawhelper_sse2.cpp:242
 qt_memfill<unsigned int> (dest=0xb076d000, count=50688, color=4294967295) at ../../include/QtGui/private/../../../src/gui/painting/qdrawhelper_p.h:1592
 qt_rectfill<unsigned int> (dest=<optimized out>, stride=264, height=768, width=66, y=0, x=0, value=4294967295) at ../../include/QtGui/private/../../../src/gui/painting/qdrawhelper_p.h:1633