compiz crashed with SIGSEGV in vtable for nux::ColorLayer()

[Steve Magoun]

Quitting 'mumble' can cause compiz to crash. I've quit mumble 3 times today, and compiz has crashed on 2 of those instances. I haven't seen this problem when quitting other applications.

mumble version is 1.2.3-1ubuntu6

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: libnux-0.9-0 0.9.42-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
CrashCounter: 1
Date: Tue Apr 12 16:45:40 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta amd64 (20100901.1)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f030e11dd30 <_ZTVN3nux10ColorLayerE+16>: xor %al,0x7f030de0(%rsi)
 PC (0x7f030e11dd30) in non-executable VMA region: 0x7f030e118000-0x7f030e12f000 r--p /usr/lib/libnux-0.9.so.0.938.4
 source "%al" ok
 destination "0x7f030de0(%rsi)" (0x7f030de0) not located in a known VMA region (needed writable region)!
SegvReason:
 executing non-writable VMA /usr/lib/libnux-0.9.so.0.938.4
 writing unknown VMA
Signal: 11
SourcePackage: nux
StacktraceTop:
 vtable for nux::ColorLayer () from /usr/lib/libnux-0.9.so.0
 nux::Area::InitiateResizeLayout(nux::Area*) () from /usr/lib/libnux-0.9.so.0
 nux::Area::SetMinMaxSize(int, int) () from /usr/lib/libnux-0.9.so.0
 PanelTray::Sync() () from /usr/lib/compiz/libunityshell.so
 PanelTray::IdleSync(PanelTray*) () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in vtable for nux::ColorLayer()
UpgradeStatus: Upgraded to natty on 2011-04-04 (8 days ago)
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