Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.00 (4.7.0)
Qt Version: 4.7.3
Operating System: Linux 3.0.0-7-generic x86_64
Distribution: Ubuntu oneiric (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
Log into kubuntu 4.7 (also happened with 4.6.90) start thunderbird 6.0 systematic reproducible crash at each login. Thunderbird is launched via panel icon. Ubuntu oneiric 64 bits

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fc7739437a0 (LWP 2268))]

Thread 5 (Thread 0x7fc750b06700 (LWP 2269)):
#0  0x00007fc768313d9d in __pthread_mutex_unlock_usercnt (mutex=0x236aac8) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x236aac8) at pthread_mutex_unlock.c:290
#2  0x00007fc767803b73 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc767803f89 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc77041e7ae in QEventDispatcherGlib::processEvents (this=0x235d050, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fc7703f2c62 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fc7703f2e67 in QEventLoop::exec (this=0x7fc750b05db0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007fc77030a2cf in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#8  0x00007fc7703d5c2f in QInotifyFileSystemWatcherEngine::run (this=0x235fb20) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fc77030cd55 in QThreadPrivate::start (arg=0x235fb20) at thread/qthread_unix.cpp:320
#10 0x00007fc76830fd8c in start_thread (arg=0x7fc750b06700) at pthread_create.c:304
#11 0x00007fc7732361dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fc74a1d4700 (LWP 2270)):
#0  0x00007fc7677d6280 in poll@plt () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc767803ac8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc767803f89 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc77041e7ae in QEventDispatcherGlib::processEvents (this=0x161dfa0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fc7703f2c62 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc7703f2e67 in QEventLoop::exec (this=0x7fc74a1d3db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fc77030a2cf in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007fc7703d5c2f in QInotifyFileSystemWatcherEngine::run (this=0x161a5c0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fc77030cd55 in QThreadPrivate::start (arg=0x161a5c0) at thread/qthread_unix.cpp:320
#9  0x00007fc76830fd8c in start_thread (arg=0x7fc74a1d4700) at pthread_create.c:304
#10 0x00007fc7732361dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fc744443700 (LWP 2278)):
#0  0x00007fc773229093 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fc767803ac8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc7678042f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc744f24516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fc767829086 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc76830fd8c in start_thread (arg=0x7fc744443700) at pthread_create.c:304
#6  0x00007fc7732361dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fc743459700 (LWP 2299)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1  0x00007fc77030d16e in wait (this=<value optimized out>, mutex=0x2dfd5d0, time=30000) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x2dfd5d0, time=30000) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fc77030174f in QThreadPoolThread::run (this=0x2fb5c90) at concurrent/qthreadpool.cpp:140
#4  0x00007fc77030cd55 in QThreadPrivate::start (arg=0x2fb5c90) at thread/qthread_unix.cpp:320
#5  0x00007fc76830fd8c in start_thread (arg=0x7fc743459700) at pthread_create.c:304
#6  0x00007fc7732361dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fc7739437a0 (LWP 2268)):
[KCrash Handler]
#6  0x00007fc7455e3794 in ?? () from /usr/lib/kde4/plasma_applet_message_indicator.so
#7  0x00007fc7703f3bf8 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x303ec30, event=0x7fff40105910) at kernel/qcoreapplication.cpp:846
#8  0x00007fc76f7a911f in notify_helper (this=0x15cbc10, receiver=0x303ec30, e=0x7fff40105910) at kernel/qapplication.cpp:4463
#9  QApplicationPrivate::notify_helper (this=0x15cbc10, receiver=0x303ec30, e=0x7fff40105910) at kernel/qapplication.cpp:4439
#10 0x00007fc76f7adfc1 in QApplication::notify (this=0x15bcbb0, receiver=0x303ec30, e=0x7fff40105910) at kernel/qapplication.cpp:4346
#11 0x00007fc7710a1de6 in KApplication::notify (this=0x15bcbb0, receiver=0x303ec30, event=0x7fff40105910) at ../../kdeui/kernel/kapplication.cpp:311
#12 0x00007fc7703f3a6c in QCoreApplication::notifyInternal (this=0x15bcbb0, receiver=0x303ec30, event=0x7fff40105910) at kernel/qcoreapplication.cpp:731
#13 0x00007fc76f7f2141 in sendEvent (this=0x303ec30, action=0x2734200) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#14 QWidget::removeAction (this=0x303ec30, action=0x2734200) at kernel/qwidget.cpp:3239
#15 0x00007fc76fbe10e0 in QMenu::clear (this=0x303ec30) at widgets/qmenu.cpp:1717
#16 0x00007fc768b8aaf8 in DBusMenuImporter::GetLayoutCallback(int, QDBusPendingCallWatcher*) () from /usr/lib/libdbusmenu-qt.so.2
#17 0x00007fc768b87a88 in DBusMenuImporter::dispatch(QDBusPendingCallWatcher*) () from /usr/lib/libdbusmenu-qt.so.2
#18 0x00007fc768b9030c in DBusMenuImporter::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libdbusmenu-qt.so.2
#19 0x00007fc7704066ea in QMetaObject::activate (sender=0x3035c20, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff40106130) at kernel/qobject.cpp:3278
#20 0x00007fc770782f9f in QDBusPendingCallWatcher::finished (this=<value optimized out>, _t1=0x3035c20) at .moc/release-shared/moc_qdbuspendingcall.cpp:92
#21 0x00007fc770783029 in _q_finished (this=0x3035c20, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x2876b60) at qdbuspendingcall.cpp:482
#22 QDBusPendingCallWatcher::qt_metacall (this=0x3035c20, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x2876b60) at .moc/release-shared/moc_qdbuspendingcall.cpp:80
#23 0x00007fc77040a28e in QObject::event (this=0x3035c20, e=<value optimized out>) at kernel/qobject.cpp:1217
#24 0x00007fc76f7a9154 in notify_helper (this=0x15cbc10, receiver=0x3035c20, e=0x20038b0) at kernel/qapplication.cpp:4467
#25 QApplicationPrivate::notify_helper (this=0x15cbc10, receiver=0x3035c20, e=0x20038b0) at kernel/qapplication.cpp:4439
#26 0x00007fc76f7adfc1 in QApplication::notify (this=0x15bcbb0, receiver=0x3035c20, e=0x20038b0) at kernel/qapplication.cpp:4346
#27 0x00007fc7710a1de6 in KApplication::notify (this=0x15bcbb0, receiver=0x3035c20, event=0x20038b0) at ../../kdeui/kernel/kapplication.cpp:311
#28 0x00007fc7703f3a6c in QCoreApplication::notifyInternal (this=0x15bcbb0, receiver=0x3035c20, event=0x20038b0) at kernel/qcoreapplication.cpp:731
#29 0x00007fc7703f6dff in sendEvent (receiver=0x0, event_type=0, data=0x155f430) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#30 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x155f430) at kernel/qcoreapplication.cpp:1372
#31 0x00007fc77041e2e3 in sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#32 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#33 0x00007fc7678035bd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fc767803db8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fc767803f89 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007fc77041e746 in QEventDispatcherGlib::processEvents (this=0x1560f40, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#37 0x00007fc76f85072e in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x00007fc7703f2c62 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#39 0x00007fc7703f2e67 in QEventLoop::exec (this=0x7fff401068f0, flags=...) at kernel/qeventloop.cpp:201
#40 0x00007fc7703f707b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#41 0x00007fc773537093 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#42 0x00007fc77316ee1f in __libc_start_main (main=0x400640, argc=1, ubp_av=0x7fff40106cd8, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff40106cc8) at libc-start.c:226
#43 0x0000000000400671 in _start ()

Possible duplicates by query: bug 278642, bug 278635, bug 278621, bug 278615, bug 278607.

Reported using DrKonqi