Bug 291342

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:Firefox was open with about 10 tabs. Synaptic was recently installed. Also installing/purging/reinstalling a non-functional samba. Decided to restart to see if some problems would clear up, then crash. Hope this error report gets through, many times the crash brings down system making crash reporting impossible.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f8fbab5e7c0 (LWP 2151))]

Thread 4 (Thread 0x7f8f960df700 (LWP 2152)):
#0  pthread_mutex_lock (mutex=0x22e9de8) at forward.c:182
#1  0x00007f8fae9c7fcc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8fae9c8429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8fb762ef3e in QEventDispatcherGlib::processEvents (this=0x22e97e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f8fb7602cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8fb7602ef7 in QEventLoop::exec (this=0x7f8f960decd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f8fb751a27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f8fb75e5cbf in QInotifyFileSystemWatcherEngine::run (this=0x22e7fa0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f8fb751cd05 in QThreadPrivate::start (arg=0x22e7fa0) at thread/qthread_unix.cpp:331
#9  0x00007f8fabce156c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f8faf4d4efc in start_thread (arg=0x7f8f960df700) at pthread_create.c:304
#11 0x00007f8fba44989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f8f948ea700 (LWP 2153)):
#0  0x00007f8fba43d773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8fae9c7f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8fae9c8429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8fb762ef3e in QEventDispatcherGlib::processEvents (this=0x24e4640, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f8fb7602cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8fb7602ef7 in QEventLoop::exec (this=0x7f8f948e9cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f8fb751a27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f8fb75e5cbf in QInotifyFileSystemWatcherEngine::run (this=0x24e3950) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f8fb751cd05 in QThreadPrivate::start (arg=0x24e3950) at thread/qthread_unix.cpp:331
#9  0x00007f8fabce156c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f8faf4d4efc in start_thread (arg=0x7f8f948ea700) at pthread_create.c:304
#11 0x00007f8fba44989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f8f89cb2700 (LWP 2161)):
#0  0x00007f8faf4d7034 in __pthread_mutex_lock (mutex=0x2e551f8) at pthread_mutex_lock.c:61
#1  0x00007f8fae9c6649 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8fae9c7d81 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8fae9c8792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8f8a790516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f8fae9ed2b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f8fabce156c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#7  0x00007f8faf4d4efc in start_thread (arg=0x7f8f89cb2700) at pthread_create.c:304
#8  0x00007f8fba44989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f8fbab5e7c0 (LWP 2151)):
[KCrash Handler]
#6  0x00000000025bc3aa in ?? ()
#7  0x00007f8f9f322b96 in TaskGroupItem::~TaskGroupItem (this=0x3d145f0, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f8f9f322c59 in TaskGroupItem::~TaskGroupItem (this=0x3d145f0, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:84
#9  0x00007f8fb761aa88 in QObject::event (this=0x3d145f0, e=<optimized out>) at kernel/qobject.cpp:1200
#10 0x00007f8fb6fd289b in QGraphicsWidget::event (this=0x3d145f0, event=0x36cc260) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007f8fb69b4424 in notify_helper (e=0x36cc260, receiver=0x3d145f0, this=0x18b8620) at kernel/qapplication.cpp:4486
#12 QApplicationPrivate::notify_helper (this=0x18b8620, receiver=0x3d145f0, e=0x36cc260) at kernel/qapplication.cpp:4458
#13 0x00007f8fb69b9291 in QApplication::notify (this=0x18ada00, receiver=0x3d145f0, e=0x36cc260) at kernel/qapplication.cpp:4365
#14 0x00007f8fb82b2126 in KApplication::notify (this=0x18ada00, receiver=0x3d145f0, event=0x36cc260) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007f8fb7603afc in QCoreApplication::notifyInternal (this=0x18ada00, receiver=0x3d145f0, event=0x36cc260) at kernel/qcoreapplication.cpp:787
#16 0x00007f8fb760751f in sendEvent (event=0x36cc260, receiver=0x3d145f0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x17fd430) at kernel/qcoreapplication.cpp:1428
#18 0x00007f8fb76077c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007f8fba7481a3 in kdemain (argc=1, argv=0x7fff60d569b8) at ../../../../plasma/desktop/shell/main.cpp:120
#20 0x00007f8fba38930d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff60d569b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff60d569a8) at libc-start.c:226
#21 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 291291, bug 275286.

Possible duplicates by query: bug 291291, bug 291227, bug 291155, bug 290942, bug 290911.

Reported using DrKonqi