unity-2d-launcher crashed with SIGSEGV

[los-nikos]

using Smplayer with Unity2D(without compiz)

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-2d-launcher 4.8.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
CheckboxSubmission: be2fbfde253285762d2d7eaf0e9f7c54
CheckboxSystem: edda5d4f616ca792bf437989cb597002
Date: Thu Sep 15 23:33:20 2011
ExecutablePath: /usr/bin/unity-2d-launcher
ProcCmdline: unity-2d-launcher
SegvAnalysis:
 Segfault happened at: 0x7f920e608fca: testb $0x8,0x20(%r15)
 PC (0x7f920e608fca) ok
 source "$0x8" ok
 destination "0x20(%r15)" (0x00000041) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libQtDeclarative.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libQtDeclarative.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libQtDeclarative.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libQtDeclarative.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
Title: unity-2d-launcher crashed with SIGSEGV
UpgradeStatus: Upgraded to oneiric on 2011-09-06 (9 days ago)
UserGroups: adm admin audio cdrom dialout dip floppy fuse plugdev sudo tape video

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #849045, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.