compiz crashed with SIGSEGV in unity::ui::EdgeBarrierController::Impl::SetupBarriers()

[Tomasz]

This problem happens with machine resume after sleep, when secondary monitor is unplugged (was pluged in while taking sleep).

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity 7.1.0+13.10.20130920-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-8.15-generic 3.11.1
Uname: Linux 3.11.0-8-generic x86_64
ApportVersion: 2.12.4-0ubuntu1
Architecture: amd64
Date: Wed Sep 25 08:57:38 2013
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2013-06-17 (99 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
ProcCmdline: compiz
SegvAnalysis:
 Segfault happened at: 0x3cc7db0: add %bh,(%rax)
 PC (0x03cc7db0) in non-executable VMA region: 0x018cb000-0x04229000 rw-p [heap]
 source "%bh" ok
 destination "(%rax)" (0x039f0e80) ok
SegvReason: executing writable VMA [heap]
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? ()
 unity::ui::EdgeBarrierController::Impl::SetupBarriers(std::vector<nux::Rect, std::allocator<nux::Rect> > const&) () from /usr/lib/compiz/libunityshell.so
 ?? () from /usr/lib/compiz/libunityshell.so
 unity::glib::Source::SourceCallback(void*) () from /usr/lib/libunity-core-6.0.so.7
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: compiz crashed with SIGSEGV in unity::ui::EdgeBarrierController::Impl::SetupBarriers()
UpgradeStatus: Upgraded to saucy on 2013-09-19 (5 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 ?? ()
 unity::ui::EdgeBarrierController::Impl::SetupBarriers(std::vector<nux::Rect, std::allocator<nux::Rect> > const&) () from /tmp/apport_sandbox_Rokhv7/usr/lib/compiz/libunityshell.so
 ?? () from /tmp/apport_sandbox_Rokhv7/usr/lib/compiz/libunityshell.so
 unity::glib::Source::SourceCallback(void*) () from /tmp/apport_sandbox_Rokhv7/usr/lib/libunity-core-6.0.so.7
 g_main_dispatch (context=0x18de170) at /build/buildd/glib2.0-2.37.93/./glib/gmain.c:3065