In Compiz config settings manager I've just reenabled Unity plugin when crash happened.
ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity 5.6.0-0ubuntu1
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
Date: Tue Mar 13 12:53:34 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120313)
ProcCmdline: compiz
SegvAnalysis:
Segfault happened at: 0x7fda626982e0 <_ZN5unity8launcher8Launcher15DesaturateIconsEv+48>: mov (%rbx),%rax
PC (0x7fda626982e0) ok
source "(%rbx)" (0x00000061) not located in a known VMA region (needed readable region)!
destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
unity::launcher::Launcher::DesaturateIcons() () from /usr/lib/compiz/libunityshell.so
unity::launcher::Launcher::OnOverlayShown(_GVariant*) () from /usr/lib/compiz/libunityshell.so
unity::UBusManager::OnCallback(_GVariant*, void*) () from /usr/lib/compiz/libunityshell.so
?? () from /usr/lib/compiz/libunityshell.so
g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: compiz crashed with SIGSEGV in unity::launcher::Launcher::DesaturateIcons()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
StacktraceTop: 9a00) at /usr/include/ Nux-2.0/ NuxCore/ ObjectPtr. h:51 :launcher: :Launcher: :DesaturateIcon s (this=<optimized out>) at /build/ buildd/ unity-5. 6.0/plugins/ unityshell/ src/Launcher. cpp:1273 :launcher: :Launcher: :OnOverlayShown (this=0x13b1a80, data=0x26db590) at /build/ buildd/ unity-5. 6.0/plugins/ unityshell/ src/Launcher. cpp:1310 @0x7fff47279a78 , this=<optimized out>) at /usr/include/ sigc++- 2.0/sigc+ +/functors/ slot.h: 515 :UBusManager: :OnCallback (args=0x26db590, user_data= <optimized out>) at /build/ buildd/ unity-5. 6.0/plugins/ unityshell/ src/UBusWrapper .cpp:67
ObjectPtr (other=<optimized out>, this=0x7fff4727
unity:
unity:
operator() (_A_a1=
unity: