Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-23-generic x86_64
Distribution: Linux Mint 13 Maya

-- Information about the crash:
- What I was doing when the application crashed:
setting up custom ui
- Unusual behavior I noticed:
system tray icons merged. looked like there was 2 there but there definately wasnt
- Custom settings of the application:
added the mini-player widget to system tray. ( i just installed mint 13 yesterday. my ui has crashed several time)

The crash can be reproduced some of the time.

-- 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 0x7f958802c7c0 (LWP 1964))]

Thread 7 (Thread 0x7f95638d6700 (LWP 1965)):
#0  0x00007f957baaf7dd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f957baaff5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f957bab0164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9584ad3426 in QEventDispatcherGlib::processEvents (this=0x7f955c0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f9584aa2c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f9584aa2ed7 in QEventLoop::exec (this=0x7f95638d5cd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f95849a1fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f9584a829ff in QInotifyFileSystemWatcherEngine::run (this=0x16a3e20) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f95849a4fcb in QThreadPrivate::start (arg=0x16a3e20) at thread/qthread_unix.cpp:298
#9  0x00007f9578da9b74 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#10 0x00007f957c3b4e9a in start_thread (arg=0x7f95638d6700) at pthread_create.c:308
#11 0x00007f958790d4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f95569e0700 (LWP 1967)):
#0  0x00007fff6f66d8de in ?? ()
#1  0x00007f957bd6115d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007f95849fbbb4 in do_gettime (frac=0x7f95569dfa98, sec=0x7f95569dfa90) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f9584ad3b8d in QTimerInfoList::updateCurrentTime (this=0x7f9550002660) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007f9584ad3ec3 in QTimerInfoList::timerWait (this=0x7f9550002660, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007f9584ad297c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f95569dfb6c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f9584ad2a25 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f957baaf846 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f957baaff5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f957bab0164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f9584ad3426 in QEventDispatcherGlib::processEvents (this=0x7f95500008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007f9584aa2c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f9584aa2ed7 in QEventLoop::exec (this=0x7f95569dfcd0, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007f95849a1fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#15 0x00007f9584a829ff in QInotifyFileSystemWatcherEngine::run (this=0x27bf390) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007f95849a4fcb in QThreadPrivate::start (arg=0x27bf390) at thread/qthread_unix.cpp:298
#17 0x00007f9578da9b74 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#18 0x00007f957c3b4e9a in start_thread (arg=0x7f95569e0700) at pthread_create.c:308
#19 0x00007f958790d4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#20 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f9555efa700 (LWP 1968)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f9581887222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f9581887259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f9578da9b74 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#4  0x00007f957c3b4e9a in start_thread (arg=0x7f9555efa700) at pthread_create.c:308
#5  0x00007f958790d4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f954f4af700 (LWP 1970)):
#0  0x00007f957c3b6f69 in __pthread_mutex_lock (mutex=0x7f954800c800) at pthread_mutex_lock.c:92
#1  0x00007f957baeb5a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f957baaff35 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f957bab049a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f954fd7a406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f957bad19e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9578da9b74 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#7  0x00007f957c3b4e9a in start_thread (arg=0x7f954f4af700) at pthread_create.c:308
#8  0x00007f958790d4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f9539090700 (LWP 4165)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f9582f6edec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f9582f6ef19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f9578da9b74 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#4  0x00007f957c3b4e9a in start_thread (arg=0x7f9539090700) at pthread_create.c:308
#5  0x00007f958790d4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f953a57b700 (LWP 4166)):
#0  0x00007fff6f66d8de in ?? ()
#1  0x00007f957bd6115d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007f95849fbbb4 in do_gettime (frac=0x7f953a57ab28, sec=0x7f953a57ab20) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f9584ad3b8d in QTimerInfoList::updateCurrentTime (this=0x7f952c002730) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007f9584ad3841 in timerSourceCheckHelper (src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:150
#6  timerSourceCheckHelper (src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:144
#7  0x00007f957baafb43 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f957baaffd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f957bab0164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f9584ad3426 in QEventDispatcherGlib::processEvents (this=0x7f952c002b00, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#11 0x00007f9584aa2c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#12 0x00007f9584aa2ed7 in QEventLoop::exec (this=0x7f953a57ad00, flags=...) at kernel/qeventloop.cpp:204
#13 0x00007f95849a1fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#14 0x00007f95849a4fcb in QThreadPrivate::start (arg=0x5608e20) at thread/qthread_unix.cpp:298
#15 0x00007f9578da9b74 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#16 0x00007f957c3b4e9a in start_thread (arg=0x7f953a57b700) at pthread_create.c:308
#17 0x00007f958790d4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#18 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f958802c7c0 (LWP 1964)):
[KCrash Handler]
#6  0x0000000000000090 in ?? ()
#7  0x00007f9584ab9a78 in QObject::connect (sender=0x2fbecc0, signal=0x7f9569d32478 "2destroyed()", receiver=0x405a0a0, method=0x7f9569d32467 "1widgetDeleted()", type=Qt::AutoConnection) at kernel/qobject.cpp:2551
#8  0x00007f9569d13e68 in SystemTray::Task::widget (this=0x405a0a0, host=0x30292d0, createIfNecessary=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/core/task.cpp:83
#9  0x00007f9569d2ec66 in SystemTray::TaskArea::addWidgetForTask (this=0x4d1d330, task=0x405a0a0) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:265
#10 0x00007f9569d2f326 in SystemTray::TaskArea::addTask (this=0x4d1d330, task=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#11 0x00007f9584ab8281 in QMetaObject::activate (sender=0x5527ef0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff6f610380) at kernel/qobject.cpp:3547
#12 0x00007f9569d129b2 in SystemTray::Manager::taskChanged (this=<optimized out>, _t1=0x405a0a0) at ./manager.moc:120
#13 0x00007f9584ab8281 in QMetaObject::activate (sender=0x405a0a0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff6f6104d0) at kernel/qobject.cpp:3547
#14 0x00007f9569d138af in SystemTray::Task::changed (this=<optimized out>, _t1=0x405a0a0) at ./task.moc:128
#15 0x00007f9584abd446 in QObject::event (this=0x405a0a0, e=<optimized out>) at kernel/qobject.cpp:1195
#16 0x00007f9583e26894 in notify_helper (e=0x2b2e830, receiver=0x405a0a0, this=0x152d570) at kernel/qapplication.cpp:4559
#17 QApplicationPrivate::notify_helper (this=0x152d570, receiver=0x405a0a0, e=0x2b2e830) at kernel/qapplication.cpp:4531
#18 0x00007f9583e2b713 in QApplication::notify (this=0x14deb40, receiver=0x405a0a0, e=0x2b2e830) at kernel/qapplication.cpp:4420
#19 0x00007f95857879e6 in KApplication::notify (this=0x14deb40, receiver=0x405a0a0, event=0x2b2e830) at ../../kdeui/kernel/kapplication.cpp:311
#20 0x00007f9584aa3e9c in QCoreApplication::notifyInternal (this=0x14deb40, receiver=0x405a0a0, event=0x2b2e830) at kernel/qcoreapplication.cpp:876
#21 0x00007f9584aa7c6a in sendEvent (event=0x2b2e830, receiver=0x405a0a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x14371f0) at kernel/qcoreapplication.cpp:1500
#23 0x00007f9584ad2f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#24 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#25 0x00007f957baafd53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f957bab00a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f957bab0164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f9584ad33bf in QEventDispatcherGlib::processEvents (this=0x1438ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#29 0x00007f9583eced5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#30 0x00007f9584aa2c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#31 0x00007f9584aa2ed7 in QEventLoop::exec (this=0x7fff6f610de0, flags=...) at kernel/qeventloop.cpp:204
#32 0x00007f9584aa7f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#33 0x00007f9587c19a13 in kdemain (argc=1, argv=0x7fff6f6111c8) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x00007f958783c76d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff6f6111c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff6f6111b8) at libc-start.c:226
#35 0x0000000000400671 in _start ()

Possible duplicates by query: bug 305012, bug 304637, bug 304060, bug 302501, bug 301768.

Reported using DrKonqi