Bug 300794

Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic x86_64
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- added and removed widgets to the bar. the remaining widgets to the bar remained stretched out

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7b496d57c0 (LWP 1813))]

Thread 5 (Thread 0x7f7b2493b700 (LWP 1814)):
#0  0x00007fffbc7018de in ?? ()
#1  0x00007f7b3d41515d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007f7b460acbb4 in do_gettime (frac=0x7f7b2493aa98, sec=0x7f7b2493aa90) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f7b46184b8d in QTimerInfoList::updateCurrentTime (this=0x7f7b20002860) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007f7b46184ec3 in QTimerInfoList::timerWait (this=0x7f7b20002860, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007f7b4618397c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f7b2493ab6c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f7b46183a25 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f7b3d16371e in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f7b3d163f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f7b3d164124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f7b46184426 in QEventDispatcherGlib::processEvents (this=0x7f7b200008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007f7b46153c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f7b46153ed7 in QEventLoop::exec (this=0x7f7b2493acd0, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007f7b46052fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#15 0x00007f7b461339ff in QInotifyFileSystemWatcherEngine::run (this=0x11ee700) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007f7b46055fcb in QThreadPrivate::start (arg=0x11ee700) at thread/qthread_unix.cpp:298
#17 0x00007f7b3a45db74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#18 0x00007f7b3da68e9a in start_thread (arg=0x7f7b2493b700) at pthread_create.c:308
#19 0x00007f7b48fb24bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#20 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f7b18add700 (LWP 1815)):
#0  0x00007fffbc7018de in ?? ()
#1  0x00007f7b3d41515d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007f7b460acbb4 in do_gettime (frac=0x7f7b18adca98, sec=0x7f7b18adca90) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f7b46184b8d in QTimerInfoList::updateCurrentTime (this=0x7f7b14002660) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007f7b46184ec3 in QTimerInfoList::timerWait (this=0x7f7b14002660, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007f7b4618397c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f7b18adcb6c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f7b46183a25 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f7b3d16371e in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f7b3d163f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f7b3d164124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f7b46184426 in QEventDispatcherGlib::processEvents (this=0x7f7b140008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007f7b46153c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f7b46153ed7 in QEventLoop::exec (this=0x7f7b18adccd0, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007f7b46052fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#15 0x00007f7b461339ff in QInotifyFileSystemWatcherEngine::run (this=0x1c0f5b0) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007f7b46055fcb in QThreadPrivate::start (arg=0x1c0f5b0) at thread/qthread_unix.cpp:298
#17 0x00007f7b3a45db74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#18 0x00007f7b3da68e9a in start_thread (arg=0x7f7b18add700) at pthread_create.c:308
#19 0x00007f7b48fb24bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#20 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f7b11448700 (LWP 1821)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7b42f38222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f7b42f38259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f7b3a45db74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f7b3da68e9a in start_thread (arg=0x7f7b11448700) at pthread_create.c:308
#5  0x00007f7b48fb24bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f7b0a617700 (LWP 1823)):
#0  0x00007f7b3da6af69 in __pthread_mutex_lock (mutex=0x7f7b0400c630) at pthread_mutex_lock.c:92
#1  0x00007f7b3d19f561 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7b3d163a3e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7b3d163f96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7b3d16445a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7b0b1012c6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f7b3d1859a5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f7b3a45db74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#8  0x00007f7b3da68e9a in start_thread (arg=0x7f7b0a617700) at pthread_create.c:308
#9  0x00007f7b48fb24bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7b496d57c0 (LWP 1813)):
[KCrash Handler]
#6  0x0000000000000060 in ?? ()
#7  0x00007f7b4616aa78 in QObject::connect (sender=0x42c97f0, signal=0x7f7b2ad97478 "2destroyed()", receiver=0x4066c60, method=0x7f7b2ad97467 "1widgetDeleted()", type=Qt::AutoConnection) at kernel/qobject.cpp:2551
#8  0x00007f7b2ad78e68 in SystemTray::Task::widget (this=0x4066c60, host=0x42a0e30, createIfNecessary=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/core/task.cpp:83
#9  0x00007f7b2ad93c66 in SystemTray::TaskArea::addWidgetForTask (this=0x2e762a0, task=0x4066c60) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:265
#10 0x00007f7b2ad94326 in SystemTray::TaskArea::addTask (this=0x2e762a0, task=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#11 0x00007f7b46169281 in QMetaObject::activate (sender=0x1017c20, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffbc68bac0) at kernel/qobject.cpp:3547
#12 0x00007f7b2ad779b2 in SystemTray::Manager::taskChanged (this=<optimized out>, _t1=0x4066c60) at ./manager.moc:120
#13 0x00007f7b46169281 in QMetaObject::activate (sender=0x4066c60, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffbc68bc10) at kernel/qobject.cpp:3547
#14 0x00007f7b2ad788af in SystemTray::Task::changed (this=<optimized out>, _t1=0x4066c60) at ./task.moc:128
#15 0x00007f7b4616e446 in QObject::event (this=0x4066c60, e=<optimized out>) at kernel/qobject.cpp:1195
#16 0x00007f7b454d7894 in notify_helper (e=0x3dcc8d0, receiver=0x4066c60, this=0x7952f0) at kernel/qapplication.cpp:4559
#17 QApplicationPrivate::notify_helper (this=0x7952f0, receiver=0x4066c60, e=0x3dcc8d0) at kernel/qapplication.cpp:4531
#18 0x00007f7b454dc713 in QApplication::notify (this=0x794130, receiver=0x4066c60, e=0x3dcc8d0) at kernel/qapplication.cpp:4420
#19 0x00007f7b46e31b46 in KApplication::notify (this=0x794130, receiver=0x4066c60, event=0x3dcc8d0) at ../../kdeui/kernel/kapplication.cpp:311
#20 0x00007f7b46154e9c in QCoreApplication::notifyInternal (this=0x794130, receiver=0x4066c60, event=0x3dcc8d0) at kernel/qcoreapplication.cpp:876
#21 0x00007f7b46158c6a in sendEvent (event=0x3dcc8d0, receiver=0x4066c60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x6e81f0) at kernel/qcoreapplication.cpp:1500
#23 0x00007f7b46183f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#24 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#25 0x00007f7b3d163c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f7b3d164060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f7b3d164124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f7b461843bf in QEventDispatcherGlib::processEvents (this=0x6e9ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#29 0x00007f7b4557fd5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#30 0x00007f7b46153c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#31 0x00007f7b46153ed7 in QEventLoop::exec (this=0x7fffbc68c520, flags=...) at kernel/qeventloop.cpp:204
#32 0x00007f7b46158f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#33 0x00007f7b492bea13 in kdemain (argc=1, argv=0x7fffbc68c908) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x00007f7b48ee176d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffbc68c908, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffbc68c8f8) at libc-start.c:226
#35 0x0000000000400671 in _start ()

Possible duplicates by query: bug 300680, bug 300024, bug 299063, bug 290712.

Reported using DrKonqi