Public bug reported:
Binary package hint: unity
Compiz (or parts of it) stop working on different occasions that are not
fully reproducable to me. I was not able to provoke it on a freshly
started session, it happens after 20 minutes or more.
Symptoms:
It can be that just the decorator on the second screen is removed, or also on
the first. In this case the unity-panel is affected by not showing menu and
window close/min/normal buttons. New windows don't get decorated.
It can get as far as not being able to select windows/widgets any more.
Most extrem is when the mouse is catched.
On one occasion I was not able to CTRL+ALT+F1 out of it.
Tried solutions:
I did not find a solution yet. "compiz-decorator --replace",
"unity-window-decorator --replace", "compiz --replace", "metacity --replace",
"killall compiz" (no reaction by the process at all) did not help.
The only thing that helps is "killall gnome-session" - which loses all session
data.
Nota bene: I am on a multi-monitor-system, with 2 monitors above/below
each other. Unity injects a panel on both monitors (which is really
nice).
ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: unity 3.6.8-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-7.38-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
Architecture: i386
CrashCounter: 1
Date: Fri Mar 25 13:51:17 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
ProcCmdline: compiz
ProcEnviron:
LANGUAGE=de:en
LANG=de_DE.UTF-8
SHELL=/bin/bash
SegvAnalysis:
Segfault happened at: 0x9f30c7 <_ZNSt15_List_node_base7_M_hookEPS_+23>:
mov %edx,(%ecx)
PC (0x009f30c7) ok
source "%edx" ok
destination "(%ecx)" (0x00000002) not located in a known VMA region (needed
writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
std::_List_node_base::_M_hook(std::_List_node_base*) () from
/usr/lib/i386-linux-gnu/libstdc++.so.6
LauncherIcon::OnDelayedUpdateTimeout(void*) () from
/usr/lib/compiz/libunityshell.so
?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
Title: compiz crashed with SIGSEGV in std::_List_node_base::_M_hook()
UpgradeStatus: Upgraded to natty on 2011-03-23 (2 days ago)
UserGroups: adm admin cdrom dialout dip fax floppy fuse lpadmin plugdev
sambashare tape video
** Affects: unity (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-crash i386 natty running-unity
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https://bugs.launchpad.net/bugs/742440
Title:
compiz crashed with SIGSEGV in std::_List_node_base::_M_hook()
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