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

[sam tygier]

Binary package hint: unity-2d

in livecd in testdrive/kvm-qemu shortly after boot
got Bug #800436 about the same time

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-2d-launcher 3.8.8-0ubuntu1
ProcVersionSignature: Ubuntu 3.0-1.2-generic 3.0.0-rc3
Uname: Linux 3.0-1-generic x86_64
Architecture: amd64
CrashCounter: 1
Date: Tue Jun 21 22:36:34 2011
ExecutablePath: /usr/bin/unity-2d-launcher
LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110621)
ProcCmdline: /usr/bin/unity-2d-launcher
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7f2f08a6a945: movntdq %xmm0,(%r8)
 PC (0x7f2f08a6a945) ok
 source "%xmm0" ok
 destination "(%r8)" (0x7f2f0ab4c000) in non-writable VMA region: 0x7f2f0ab4c000-0x7f2f0ab57000 r--p /usr/share/icons/Humanity-Dark/icon-theme.cache
SegvReason: writing VMA /usr/share/icons/Humanity-Dark/icon-theme.cache
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 ?? () from /usr/lib/libQtGui.so.4
 ?? () from /usr/lib/libQtGui.so.4
 ?? () from /usr/lib/libQtGui.so.4
 QPainter::fillRect(QRect const&, QBrush const&) () from /usr/lib/libQtGui.so.4
 QWidgetPrivate::paintBackground(QPainter*, QRegion const&, int) const () from /usr/lib/libQtGui.so.4
Title: unity-2d-launcher crashed with SIGSEGV in QPainter::fillRect()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[sam tygier (samtygier)]

has a similar crash before, but retrace failed, Bug #791575

[Jean-Baptiste Lallement (jibel)]

Thanks for your report. I can't reproduce the crash just by running unity-2d from the Live CD on amd64 and i386 and doing different activities from the session.

Do you remember doing something specific that could have triggered this crash .

[Apport retracing service (apport)]

StacktraceTop:
 _mm_stream_si128 (dest=<value optimized out>, value=4294967295, count=<value optimized out>) at /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/include/emmintrin.h:1424
 qt_memfill32_sse2 (dest=<value optimized out>, value=4294967295, count=<value optimized out>) at painting/qdrawhelper_sse2.cpp:269
 qt_memfill32_sse2 (dest=<value optimized out>, value=4294967295, count=<value optimized out>) at painting/qdrawhelper_sse2.cpp:242
 fillRect_normalized (r=<value optimized out>, data=0xed7ec0, pe=0xa06f50) at painting/qpaintengine_raster.cpp:1488
 QRasterPaintEngine::fillRect (this=0xba3370, r=..., data=0xed7ec0) at painting/qpaintengine_raster.cpp:1880

[sam tygier (samtygier)]

still seeing this Bug #810186 get it shortly after booting the live cd in testdrive.