compiz crashed with SIGSEGV in malloc_consolidate()

[alex sandoval]

compiz crash just load the app unknown reason

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: libnux-2.0-0 2.6.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
CrashCounter: 1
Date: Wed Mar 14 17:15:55 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
ProcCmdline: compiz
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fe54d513b40: cmp 0x18(%rdx),%rbx
 PC (0x7fe54d513b40) ok
 source "0x18(%rdx)" (0x24000060002be1c) not located in a known VMA region (needed readable region)!
 destination "%rbx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: nux
StacktraceTop:
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 unity::dash::ResultView::~ResultView() () from /usr/lib/compiz/libunityshell.so
 unity::dash::ResultViewGrid::~ResultViewGrid() () from /usr/lib/compiz/libunityshell.so
 unity::dash::ResultViewGrid::~ResultViewGrid() () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in unity::dash::ResultView::~ResultView()
UpgradeStatus: Upgraded to precise on 2012-03-12 (2 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers

[Apport retracing service (apport)]

StacktraceTop:
 malloc_consolidate (av=0x7fe54d84b720) at malloc.c:4246
 malloc_consolidate (av=0x7fe54d84b720) at malloc.c:4215
 _int_free (av=0x7fe54d84b720, p=<optimized out>, have_lock=0) at malloc.c:4146
 deallocate (__p=0x32a35f0, this=<optimized out>) at /usr/include/c++/4.6/ext/new_allocator.h:98
 _M_deallocate (__p=0x32a35f0, this=<optimized out>, __n=<optimized out>) at /usr/include/c++/4.6/bits/stl_vector.h:156

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 942286, so it 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. Feel free to continue to report any other bugs you may find.