Application: plasma-desktop (0.4)
KDE Platform Version: 4.5.95 (4.6 RC2)
Qt Version: 4.7.1
Operating System: Linux 2.6.37-12-generic x86_64
Distribution: Ubuntu natty (development branch)

-- Information about the crash:
- What I was doing when the application crashed:

i had this crash when i'm switching from an activity to another.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fe098e5c7c0 (LWP 1853))]

Thread 4 (Thread 0x7fe071208700 (LWP 1999)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007fe071207aa0 in ?? ()
#2  0x00007fff1ffff7b2 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 3 (Thread 0x7fe06f1ab700 (LWP 2044)):
#0  0x00007fe094238e6d in __pthread_mutex_unlock_usercnt (mutex=0x18b45e8) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x18b45e8) at pthread_mutex_unlock.c:290
#2  0x00007fe08cadb303 in g_main_context_iterate (context=0x18b45e0, block=1, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.27.90/glib/gmain.c:3069
#3  0x00007fe08cadb789 in g_main_context_iteration (context=0x18b45e0, may_block=1) at /build/buildd/glib2.0-2.27.90/glib/gmain.c:3154
#4  0x00007fe095791a26 in QEventDispatcherGlib::processEvents (this=0x109b0c0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#5  0x00007fe095765ed2 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fe09576610c in QEventLoop::exec (this=0x7fe06f1aad90, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007fe09567d214 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#8  0x00007fe0957483df in QInotifyFileSystemWatcherEngine::run (this=0x18b38a0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fe09567f9ce in QThreadPrivate::start (arg=0x18b38a0) at thread/qthread_unix.cpp:285
#10 0x00007fe094234d8c in start_thread (arg=0x7fe06f1ab700) at pthread_create.c:304
#11 0x00007fe09857061d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fe06e9aa700 (LWP 2045)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007fe06e9a9ab0 in ?? ()
#2  0x00007fff1ffff7b2 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (Thread 0x7fe098e5c7c0 (LWP 1853)):
[KCrash Handler]
#6  0x00007fe07c1076e2 in TaskManager::GroupManagerPrivate::currentActivityChanged (this=0x13c1920, newActivity=<value optimized out>) at ../../../libs/taskmanager/groupmanager.cpp:409
#7  0x00007fe07c10ae99 in TaskManager::GroupManager::qt_metacall (this=0x13bcb40, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0x7fff1fe98220) at ./groupmanager.moc:107
#8  0x00007fe09577bbb8 in QMetaObject::activate (sender=0x12cbfb0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff1fe98220) at kernel/qobject.cpp:3280
#9  0x00007fe07c11cfd5 in TaskManager::TaskManager::activityChanged (this=<value optimized out>, _t1=<value optimized out>) at ./taskmanager.moc:207
#10 0x00007fe07c11e93d in TaskManager::TaskManager::qt_metacall (this=0x12cbfb0, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0x7fff1fe983f0) at ./taskmanager.moc:128
#11 0x00007fe09577bbb8 in QMetaObject::activate (sender=0x13c1a70, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff1fe983f0) at kernel/qobject.cpp:3280
#12 0x00007fe09747ecf2 in KActivityConsumer::currentActivityChanged (this=<value optimized out>, _t1=<value optimized out>) at moc_kactivityconsumer.cpp:126
#13 0x00007fe09747efcd in KActivityConsumer::qt_metacall (this=0x13c1a70, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fff1fe98510) at moc_kactivityconsumer.cpp:87
#14 0x00007fe09577bbb8 in QMetaObject::activate (sender=0xf5dc20, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff1fe98510) at kernel/qobject.cpp:3280
#15 0x00007fe09749dd45 in OrgKdeActivityManagerInterface::CurrentActivityChanged (this=<value optimized out>, _t1=<value optimized out>) at activitymanager_interface.moc:249
#16 0x00007fe09749e143 in OrgKdeActivityManagerInterface::qt_metacall (this=0xf5dc20, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0x7fff1fe98db0) at activitymanager_interface.moc:145
#17 0x00007fe09747eda0 in KActivityManager::qt_metacall (this=0xf5dc20, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff1fe98db0) at moc_kactivitymanager_p.cpp:75
#18 0x00007fe095abafea in QDBusConnectionPrivate::deliverCall (this=0xc1aba0, object=0xf5dc20, msg=..., metaTypes=..., slotIdx=11) at qdbusintegrator.cpp:919
#19 0x00007fe095ac5f6f in QDBusCallDeliveryEvent::placeMetaCall (this=<value optimized out>, object=<value optimized out>) at qdbusintegrator_p.h:103
#20 0x00007fe09577aa4a in QObject::event (this=0xf5dc20, e=<value optimized out>) at kernel/qobject.cpp:1219
#21 0x00007fe094b17b24 in QApplicationPrivate::notify_helper (this=0xc2e930, receiver=0xf5dc20, e=0x2af1400) at kernel/qapplication.cpp:4445
#22 0x00007fe094b1c45a in QApplication::notify (this=<value optimized out>, receiver=0xf5dc20, e=0x2af1400) at kernel/qapplication.cpp:4324
#23 0x00007fe09641d6d6 in KApplication::notify (this=0xc19b50, receiver=0xf5dc20, event=0x2af1400) at ../../kdeui/kernel/kapplication.cpp:311
#24 0x00007fe095766aec in QCoreApplication::notifyInternal (this=0xc19b50, receiver=0xf5dc20, event=0x2af1400) at kernel/qcoreapplication.cpp:732
#25 0x00007fe09576a275 in sendEvent (receiver=0x0, event_type=0, data=0xbc4800) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#26 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xbc4800) at kernel/qcoreapplication.cpp:1373
#27 0x00007fe095791833 in sendPostedEvents (s=0xc31170) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#28 postEventSourceDispatch (s=0xc31170) at kernel/qeventdispatcher_glib.cpp:277
#29 0x00007fe08cadad0d in g_main_dispatch (context=0xc31080) at /build/buildd/glib2.0-2.27.90/glib/gmain.c:2440
#30 g_main_context_dispatch (context=0xc31080) at /build/buildd/glib2.0-2.27.90/glib/gmain.c:3013
#31 0x00007fe08cadb4f8 in g_main_context_iterate (context=0xc31080, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.27.90/glib/gmain.c:3091
#32 0x00007fe08cadb789 in g_main_context_iteration (context=0xc31080, may_block=1) at /build/buildd/glib2.0-2.27.90/glib/gmain.c:3154
#33 0x00007fe0957919cf in QEventDispatcherGlib::processEvents (this=0xbc42d0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#34 0x00007fe094bbda9e in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#35 0x00007fe095765ed2 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#36 0x00007fe09576610c in QEventLoop::exec (this=0x7fff1fe99790, flags=...) at kernel/qeventloop.cpp:201
#37 0x00007fe09576a51b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#38 0x00007fe0988515d7 in kdemain (argc=1, argv=0x7fff1fe99b58) at ../../../../plasma/desktop/shell/main.cpp:118
#39 0x00007fe0984aed1e in __libc_start_main (main=0x400740 <main(int, char**)>, argc=1, ubp_av=0x7fff1fe99b58, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff1fe99b48) at libc-start.c:226
#40 0x0000000000400669 in _start ()

This bug may be a duplicate of or related to bug 258584.

Possible duplicates by query: bug 258584.

Reported using DrKonqi