nepomukservicestub crashed with SIGSEGV in QTimer::stop()

[StuJordan]

Binary package hint: kdebase-runtime

crash occurred after logging out of KDE session and then logging into xfce

ProblemType: Crash
Architecture: i386
Date: Thu Jan 28 22:38:54 2010
DistroRelease: Ubuntu 10.04
ExecutablePath: /usr/bin/nepomukservicestub
Package: kdebase-runtime 4:4.3.95-0ubuntu1
ProcCmdline: /usr/bin/nepomukserviceusernameb nepomukstrigiservice
ProcEnviron:
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
 LANGUAGE=
ProcVersionSignature: Ubuntu 2.6.32-11.15-generic
SegvAnalysis:
 Segfault happened at: 0x82eb5a <_ZN6QTimer4stopEv+26>: mov 0x8(%esi),%eax
 PC (0x0082eb5a) ok
 source "0x8(%esi)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: kdebase-runtime
StacktraceTop:
 QTimer::stop() () from /usr/lib/libQtCore.so.4
 ?? () from /usr/lib/kde4/nepomukstrigiservice.so
 ?? () from /usr/lib/kde4/nepomukstrigiservice.so
 ?? () from /usr/lib/kde4/nepomukstrigiservice.so
 QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
Title: nepomukservicestub crashed with SIGSEGV in QTimer::stop()
Uname: Linux 2.6.32-11-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (xfce4-cpugraph-plugin:7119): Gtk-CRITICAL **: gtk_container_set_border_width: assertion `GTK_IS_CONTAINER (container)' failed
 (polkit-gnome-authentication-agent-1:7163): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed

[Apport retracing service (apport)]

StacktraceTop:
 QTimer::stop (this=0x0) at kernel/qtimer.cpp:256
 Nepomuk::StrigiService::setSuspended (this=0x93c08e0,
 Nepomuk::SystemTray::slotSuspend (this=0x93e7ec8,
 Nepomuk::SystemTray::qt_metacall (this=0x93e7ec8,
 QMetaObject::metacall (object=0x93e7ec8,

[Jonathan Thomas (echidnaman)]

Could be related to the new DBusMenu stuff. (dbusmenu stuff shows up in the backtrace.
Subscribing Aurélien for more insight

[Aurélien Gâteau (agateau)]

Unfortunately, I can't reproduce the bug and the Nepomuk code where it crashes does not exist anymore. Can you still reproduce it with Lucid?

[StuJordan (r-launchpad-stuartjordan-co-uk)]

I've tried it again since some of the new updates and it hasn't happened again since. Not sure if this means it was a one off or that it has been fixed.

[Jonathan Thomas (echidnaman)]

It probably has been fixed, then.