compiz crashed with SIGSEGV in PanelMenuView::ProcessEvent()

[manishmahabir]

i dragged firefox away from the top panel...and the gui became unresponsive.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: libnux-0.9-0 0.9.36-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Thu Mar 31 13:03:46 2011
Disassembly: => 0x0: Cannot access memory at address 0x0
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110302)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_IN:en
 LANG=en_IN
 LC_MESSAGES=en_IN.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x0: Cannot access memory at address 0x0
 PC (0x00000000) not located in a known VMA region (needed executable region)!
SegvReason: executing NULL VMA
Signal: 11
SourcePackage: nux
StacktraceTop:
 ?? ()
 PanelMenuView::ProcessEvent(nux::Event&, long, long) () from /usr/lib/compiz/libunityshell.so
 nux::Layout::ProcessEvent(nux::Event&, long, long) () from /usr/lib/libnux-0.9.so.0
 nux::Layout::ProcessEvent(nux::Event&, long, long) () from /usr/lib/libnux-0.9.so.0
 nux::BaseWindow::ProcessEvent(nux::Event&, long, long) () from /usr/lib/libnux-0.9.so.0
Title: compiz crashed with SIGSEGV in PanelMenuView::ProcessEvent()
UpgradeStatus: Upgraded to natty on 2011-03-25 (6 days ago)
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