Bug 286723

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
Closing a Java based appliation.  The application does use GTK connections.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f9fa57747c0 (LWP 3095))]

Thread 5 (Thread 0x7f9f7f61b700 (LWP 3096)):
#0  0x00007f9f9a0fc1fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x257cff8) at pthread_mutex_unlock.c:290
#2  0x00007f9f995eb3f5 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9f995ebe6a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9f995ec429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9fa2252f3e in QEventDispatcherGlib::processEvents (this=0x257c490, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f9fa2226cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f9fa2226ef7 in QEventLoop::exec (this=0x7f9f7f61acd0, flags=...) at kernel/qeventloop.cpp:201
#8  0x00007f9fa213e27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#9  0x00007f9fa2209cbf in QInotifyFileSystemWatcherEngine::run (this=0x257acf0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f9fa2140d05 in QThreadPrivate::start (arg=0x257acf0) at thread/qthread_unix.cpp:331
#11 0x00007f9f9690525a in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0x00007f9f9a0f8efc in start_thread (arg=0x7f9f7f61b700) at pthread_create.c:304
#13 0x00007f9fa506d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f9f7cde6700 (LWP 3097)):
#0  0x00007f9fa5061773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f9f995ebf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9f995ec429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9fa2252f3e in QEventDispatcherGlib::processEvents (this=0x262dfa0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f9fa2226cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f9fa2226ef7 in QEventLoop::exec (this=0x7f9f7cde5cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f9fa213e27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f9fa2209cbf in QInotifyFileSystemWatcherEngine::run (this=0x262d260) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f9fa2140d05 in QThreadPrivate::start (arg=0x262d260) at thread/qthread_unix.cpp:331
#9  0x00007f9f9690525a in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f9f9a0f8efc in start_thread (arg=0x7f9f7cde6700) at pthread_create.c:304
#11 0x00007f9fa506d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f9f72cd6700 (LWP 3105)):
#0  0x00007f9fa5061773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f9f995ebf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9f995ec792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9f737b4516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f9f996112b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9f9690525a in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007f9f9a0f8efc in start_thread (arg=0x7f9f72cd6700) at pthread_create.c:304
#7  0x00007f9fa506d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f9f70e67700 (LWP 3106)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f9f9f257fe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f9f9f258019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f9f9690525a in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f9f9a0f8efc in start_thread (arg=0x7f9f70e67700) at pthread_create.c:304
#5  0x00007f9fa506d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f9fa57747c0 (LWP 3095)):
[KCrash Handler]
#6  operator== (value=0, this=0x30a532620d) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#7  isNull (this=0x424c790) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#8  operator! (this=0x424c790) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#9  TaskManager::TaskItem::task (this=<optimized out>) at ../../../libs/taskmanager/taskitem.cpp:113
#10 0x00007f9f886bd112 in WindowTaskItem::publishIconGeometry (this=0x2e12790) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#11 0x00007f9f886cbb7c in AbstractTaskItem::timerEvent (this=0x2e12790, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#12 0x00007f9fa223e789 in QObject::event (this=0x2e12790, e=<optimized out>) at kernel/qobject.cpp:1181
#13 0x00007f9fa1bf689b in QGraphicsWidget::event (this=0x2e12790, event=0x7fffdad40b60) at graphicsview/qgraphicswidget.cpp:1455
#14 0x00007f9fa15d8424 in notify_helper (e=0x7fffdad40b60, receiver=0x2e12790, this=0x1331e30) at kernel/qapplication.cpp:4486
#15 QApplicationPrivate::notify_helper (this=0x1331e30, receiver=0x2e12790, e=0x7fffdad40b60) at kernel/qapplication.cpp:4458
#16 0x00007f9fa15dd291 in QApplication::notify (this=0x1324b60, receiver=0x2e12790, e=0x7fffdad40b60) at kernel/qapplication.cpp:4365
#17 0x00007f9fa2ed6126 in KApplication::notify (this=0x1324b60, receiver=0x2e12790, event=0x7fffdad40b60) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x00007f9fa2227afc in QCoreApplication::notifyInternal (this=0x1324b60, receiver=0x2e12790, event=0x7fffdad40b60) at kernel/qcoreapplication.cpp:787
#19 0x00007f9fa2254d62 in sendEvent (event=0x7fffdad40b60, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x1338fe0) at kernel/qeventdispatcher_unix.cpp:603
#21 0x00007f9fa2252538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#22 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#23 0x00007f9f995eba5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f9f995ec258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f9f995ec429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f9fa2252ed6 in QEventDispatcherGlib::processEvents (this=0x126ef40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#27 0x00007f9fa168007e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x00007f9fa2226cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007f9fa2226ef7 in QEventLoop::exec (this=0x7fffdad40df0, flags=...) at kernel/qeventloop.cpp:201
#30 0x00007f9fa222b789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#31 0x00007f9fa536c1a3 in kdemain (argc=1, argv=0x7fffdad411d8) at ../../../../plasma/desktop/shell/main.cpp:120
#32 0x00007f9fa4fad30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffdad411d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffdad411c8) at libc-start.c:226
#33 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 272495.

Possible duplicates by query: bug 286695, bug 286616, bug 286582, bug 286350, bug 286299.

Reported using DrKonqi