compiz crashed with SIGSEGV in unity::FilterBar::RemoveFilter()

Bug Description

I have no idea why this happened...I was not running any overt apps, in fact was looking at the desktop, had just finished showing my wife how to toggle back and forth between apps, folders, and music at the bottom of the screen...

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity 4.14.2-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-11.49-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.22.1-0ubuntu2
Architecture: amd64
Date: Fri Sep 9 11:32:18 2011
ExecutablePath: /usr/bin/compiz
ProcCmdline: compiz
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SegvAnalysis:
Segfault happened at: 0x49aa220: add (%rax),%bl
PC (0x049aa220) in non-executable VMA region: 0x02283000-0x06917000 rw-p [heap]
source "(%rax)" (0x049af9a0) ok
destination "%bl" ok
SegvReason: executing writable VMA [heap]
Signal: 11
SourcePackage: unity
StacktraceTop:
?? ()
unity::FilterBar::RemoveFilter(std::shared_ptr<unity::dash::Filter>) () from /usr/lib/compiz/libunityshell.so
unity::dash::LensView::OnFilterRemoved(std::shared_ptr<unity::dash::Filter>) () from /usr/lib/compiz/libunityshell.so
sigc::internal::slot_call1<sigc::bound_mem_functor1<void, unity::dash::LensView, std::shared_ptr<unity::dash::Filter> >, void, std::shared_ptr<unity::dash::Filter> >::call_it(sigc::internal::slot_rep*, std::shared_ptr<unity::dash::Filter> const&) () from /usr/lib/compiz/libunityshell.so
unity::dash::Filters::OnRowRemoved(unity::dash::FilterAdaptor&) () from /usr/lib/libunity-core-4.0.so.4
Title: compiz crashed with SIGSEGV in unity::FilterBar::RemoveFilter()
UpgradeStatus: Upgraded to oneiric on 2011年09月08日 (1 days ago)
UserGroups: adm admin cdrom dialout dip fax floppy fuse lp lpadmin plugdev sambashare tape video

StacktraceTop:
?? ()
unity::FilterBar::RemoveFilter (this=0x47c08d0, filter=<optimized out>) at /build/buildd/unity-4.14.2/plugins/unityshell/src/FilterBar.cpp:74
unity::dash::LensView::OnFilterRemoved (this=<optimized out>, filter=<optimized out>) at /build/buildd/unity-4.14.2/plugins/unityshell/src/LensView.cpp:261
operator() (_A_a1=<optimized out>, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1851
operator()<const std::shared_ptr<unity::dash::Filter>&> (_A_arg1=<optimized out>, this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:84

This bug was fixed in the package unity - 4.18.0-0ubuntu1

---------------
unity (4.18.0-0ubuntu1) oneiric; urgency=low

* New upstream release.
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