compiz crashed with SIGSEGV in _M_range_check()

[Tony Themelis]

importing a saved compiz profile

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity 5.6.0-0ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
Date: Fri Mar 16 10:22:43 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120315)
ProcCmdline: compiz
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f17bdd273a8 <_ZN5unity2MT15GrabHandleGroup8relayoutERKN3nux4RectEb+168>: mov 0x20(%r12),%rdx
 PC (0x7f17bdd273a8) ok
 source "0x20(%r12)" (0x0000003f) not located in a known VMA region (needed readable region)!
 destination "%rdx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 unity::MT::GrabHandleGroup::relayout(nux::Rect const&, bool) () from /usr/lib/compiz/libunitymtgrabhandles.so
 UnityMTGrabHandlesWindow::relayout(CompRect const&, bool) () from /usr/lib/compiz/libunitymtgrabhandles.so
 UnityMTGrabHandlesScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libunitymtgrabhandles.so
 CompScreen::handleEvent(_XEvent*) () from /usr/lib/libcompiz_core.so.ABI-20120228
 SessionScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libsession.so
Title: compiz crashed with SIGSEGV in unity::MT::GrabHandleGroup::relayout()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm lpadmin sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 _M_range_check (this=0x3f, __n=0) at /build/buildd/unity-5.6.0/plugins/unity-mt-grab-handles/src/unity-mt-grab-handle-group.cpp:194
 at (__n=0, this=0x3f) at /usr/include/c++/4.6/bits/stl_vector.h:737
 unity::MT::GrabHandleGroup::relayout (this=0x1f, rect=..., hard=true) at /build/buildd/unity-5.6.0/plugins/unity-mt-grab-handles/src/unity-mt-grab-handle-group.cpp:126
 UnityMTGrabHandlesWindow::relayout (this=0x459b3b0, r=<optimized out>, hard=true) at /build/buildd/unity-5.6.0/plugins/unity-mt-grab-handles/src/unity-mt-grab-handles.cpp:543
 UnityMTGrabHandlesScreen::handleEvent (this=0x31d0ba0, event=0x343a060) at /build/buildd/unity-5.6.0/plugins/unity-mt-grab-handles/src/unity-mt-grab-handles.cpp:338