the issue was fixed in
"unity (3.6.4-0ubuntu1) natty; urgency=low
- compiz crashed with SIGSEGV in LauncherIcon::OpenQuicklist() (LP: #731096)"
the issue was fixed in
"unity (3.6.4-0ubuntu1) natty; urgency=low
- compiz crashed with SIGSEGV in LauncherIcon: :OpenQuicklist( )
(LP: #731096)"