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

[zdzichu]

"ve clicked on Workspaces button.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-2d-spread 4.0.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-9.12-generic 3.0.3
Uname: Linux 3.0.0-9-generic x86_64
Architecture: amd64
CrashCounter: 1
Date: Tue Aug 23 10:09:28 2011
ExecutablePath: /usr/bin/unity-2d-spread
ProcCmdline: /usr/bin/unity-2d-spread
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=pl_PL.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7f4c19ad5cd5: movntdq %xmm0,(%r8)
 PC (0x7f4c19ad5cd5) ok
 source "%xmm0" ok
 destination "(%r8)" (0x7f4c06492000) in non-writable VMA region: 0x7f4c06492000-0x7f4c065e3000 r-xp /usr/lib/libxml2.so.2.7.8
SegvReason: writing VMA /usr/lib/libxml2.so.2.7.8
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
 QPainter::fillRect(QRect const&, QBrush const&) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
 QWidgetPrivate::paintBackground(QPainter*, QRegion const&, int) const () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
Title: unity-2d-spread crashed with SIGSEGV in QPainter::fillRect()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 _mm_stream_si128 (__B=<optimized out>, __A=<optimized out>) at /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/include/emmintrin.h:1424
 qt_memfill32_sse2 (count=735744, value=4294967295, dest=0x7f4c06276000) at painting/qdrawhelper_sse2.cpp:269
 qt_memfill32_sse2 (dest=<optimized out>, value=4294967295, count=<optimized out>) at painting/qdrawhelper_sse2.cpp:242
 fillRect_normalized (r=<optimized out>, data=0xfcaac0, pe=0xfd7a00) at painting/qpaintengine_raster.cpp:1488
 QRasterPaintEngine::fillRect (this=0xfdd380, r=..., data=0xfcaac0) at painting/qpaintengine_raster.cpp:1880