compiz crashed with SIGSEGV in nux::Area::SetVisible()

[tfmoraes]

I tried to use the expose like feature.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: libnux-0.9-0 0.9.30-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
CrashCounter: 1
Date: Fri Mar 4 10:57:59 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110201.2)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=pt_BR:pt:en_GB:en
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7ff93f64c0e9 <_ZN3nux4Area10SetVisibleEb+185>: mov 0x8(%rdi),%rax
 PC (0x7ff93f64c0e9) ok
 source "0x8(%rdi)" (0x00000039) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: nux
StacktraceTop:
 nux::Area::SetVisible(bool) () from /usr/lib/libnux-0.9.so.0
 PlacesGroup::Refresh() () from /usr/lib/compiz/libunityshell.so
 PlacesGroup::OnIdleRelayout(PlacesGroup*) () from /usr/lib/compiz/libunityshell.so
 g_main_context_dispatch () from /lib/libglib-2.0.so.0
 ?? () from /lib/libglib-2.0.so.0
Title: compiz crashed with SIGSEGV in nux::Area::SetVisible()
UpgradeStatus: Upgraded to natty on 2011-03-02 (2 days ago)
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