It happened suddenly, I cannot reproduce it. It suddenly stuck and after 10/20 seconds Unity restarted.
ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: unity 7.1.2+14.04.20140220-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-11.31-generic 3.13.3
Uname: Linux 3.13.0-11-generic x86_64
ApportVersion: 2.13.2-0ubuntu5
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Feb 25 20:51:23 2014
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2013-12-13 (75 days ago)
InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
ProcCmdline: compiz
ProcEnviron:
LANGUAGE=en_US
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SegvAnalysis:
Segfault happened at: 0x477bec0: mov %ch,0x3c3(%rdx)
PC (0x0477bec0) in non-executable VMA region: 0x01cda000-0x04ed5000 rw-p [heap]
source "%ch" ok
destination "0x3c3(%rdx)" (0x000003c9) not located in a known VMA region (needed writable region)!
SegvReason:
executing writable VMA [heap]
writing NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
?? ()
__dynamic_cast () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
nux_base_window_accessible_check_active () from /usr/lib/compiz/libunityshell.so
?? () from /usr/lib/compiz/libunityshell.so
?? () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in __dynamic_cast()
UpgradeStatus: Upgraded to trusty on 2014-01-30 (26 days ago)
UserGroups: adm autopilot cdrom debian-tor dip ftpsecure lpadmin plugdev sambashare sudo vboxusers
StacktraceSource:
#0 0x000000000477bec0 in ?? ()
#1 0x00007f811bab931f in ?? ()
#2 0x0000000002e3d130 in ?? ()
#3 0x00007fff541bf280 in ?? ()
#4 0x0000000000000000 in ?? ()
StacktraceTop:
?? ()
?? ()
?? ()
?? ()
?? ()