Bug 291918

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: Closed a terminal window and plasma crashed immediately. Clementine was also scanning my library during this time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f7cfe5bc7c0 (LWP 1642))]

Thread 10 (Thread 0x7f7cd9306700 (LWP 1643)):
#0  0x00007f7cfde91773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f7cf241bf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7cf241c429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7cfb082f3e in QEventDispatcherGlib::processEvents (this=0x7f7cd40008d0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f7cfb056cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f7cfb056ef7 in QEventLoop::exec (this=0x7f7cd9305cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f7cfaf6e27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f7cfb039cbf in QInotifyFileSystemWatcherEngine::run (this=0x247a750) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f7cfaf70d05 in QThreadPrivate::start (arg=0x247a750) at thread/qthread_unix.cpp:331
#9  0x00007f7cef73556c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f7cf2f28efc in start_thread (arg=0x7f7cd9306700) at pthread_create.c:304
#11 0x00007f7cfde9d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f7cd2a18700 (LWP 1644)):
#0  0x00007f7cfde91773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f7cf241bf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7cf241c429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7cfb082f3e in QEventDispatcherGlib::processEvents (this=0x26893e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f7cfb056cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f7cfb056ef7 in QEventLoop::exec (this=0x7f7cd2a17cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f7cfaf6e27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f7cfb039cbf in QInotifyFileSystemWatcherEngine::run (this=0x26886a0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f7cfaf70d05 in QThreadPrivate::start (arg=0x26886a0) at thread/qthread_unix.cpp:331
#9  0x00007f7cef73556c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f7cf2f28efc in start_thread (arg=0x7f7cd2a18700) at pthread_create.c:304
#11 0x00007f7cfde9d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f7cccf0a700 (LWP 1652)):
#0  0x00007f7ccd992927 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#1  0x00007f7cf241aff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7cf241bdfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7cf241c792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ccd9e8516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f7cf24412b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f7cef73556c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#7  0x00007f7cf2f28efc in start_thread (arg=0x7f7cccf0a700) at pthread_create.c:304
#8  0x00007f7cfde9d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f7cc98a6700 (LWP 1665)):
#0  0x00007f7cf241afd5 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7cf241bdfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7cf241c429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7cfb082f3e in QEventDispatcherGlib::processEvents (this=0x462b610, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f7cfb056cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f7cfb056ef7 in QEventLoop::exec (this=0x7f7cc98a5d00, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f7cfaf6e27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f7cfaf70d05 in QThreadPrivate::start (arg=0x36a3620) at thread/qthread_unix.cpp:331
#8  0x00007f7cef73556c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f7cf2f28efc in start_thread (arg=0x7f7cc98a6700) at pthread_create.c:304
#10 0x00007f7cfde9d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f7ccd70b700 (LWP 1916)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7cf8087fe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f7cf8088019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f7cef73556c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f7cf2f28efc in start_thread (arg=0x7f7ccd70b700) at pthread_create.c:304
#5  0x00007f7cfde9d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f7ccae4d700 (LWP 1977)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7cfaf711ab in wait (time=18446744073709551615, this=0x24cb300) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x24cf270, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f7cf6d6b864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2551330, th=0x2a7fcc0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f7cf6d6de0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x24ce7d0, th=0x2a7fcc0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f7cf6d6cccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f7ccae4cd20, parent=0x2551330, th=0x2a7fcc0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f7cf6d6cd5b in ThreadWeaver::Thread::run (this=0x2a7fcc0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f7cfaf70d05 in QThreadPrivate::start (arg=0x2a7fcc0) at thread/qthread_unix.cpp:331
#8  0x00007f7cef73556c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f7cf2f28efc in start_thread (arg=0x7f7ccae4d700) at pthread_create.c:304
#10 0x00007f7cfde9d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f7ccf73a700 (LWP 1978)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7cfaf711ab in wait (time=18446744073709551615, this=0x24cb300) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x24cf270, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f7cf6d6b864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2551330, th=0x4548c10) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f7cf6d6de0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x24ce7d0, th=0x4548c10) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f7cf6d6cccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f7ccf739d20, parent=0x2551330, th=0x4548c10) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f7cf6d6cd5b in ThreadWeaver::Thread::run (this=0x4548c10) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f7cfaf70d05 in QThreadPrivate::start (arg=0x4548c10) at thread/qthread_unix.cpp:331
#8  0x00007f7cef73556c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f7cf2f28efc in start_thread (arg=0x7f7ccf73a700) at pthread_create.c:304
#10 0x00007f7cfde9d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f7cbec47700 (LWP 1979)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7cfaf711ab in wait (time=18446744073709551615, this=0x24cb300) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x24cf270, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f7cf6d6b864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2551330, th=0x45d0450) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f7cf6d6de0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x24ce7d0, th=0x45d0450) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f7cf6d6de24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x24ce7d0, th=0x45d0450) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f7cf6d6cccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f7cbec46d20, parent=0x2551330, th=0x45d0450) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f7cf6d6cd5b in ThreadWeaver::Thread::run (this=0x45d0450) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f7cfaf70d05 in QThreadPrivate::start (arg=0x45d0450) at thread/qthread_unix.cpp:331
#9  0x00007f7cef73556c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f7cf2f28efc in start_thread (arg=0x7f7cbec47700) at pthread_create.c:304
#11 0x00007f7cfde9d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f7cbe446700 (LWP 1980)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7cfaf711ab in wait (time=18446744073709551615, this=0x24cb300) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x24cf270, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f7cf6d6b864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2551330, th=0x23cc000) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f7cf6d6de0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x24ce7d0, th=0x23cc000) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f7cf6d6cccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f7cbe445d20, parent=0x2551330, th=0x23cc000) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f7cf6d6cd5b in ThreadWeaver::Thread::run (this=0x23cc000) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f7cfaf70d05 in QThreadPrivate::start (arg=0x23cc000) at thread/qthread_unix.cpp:331
#8  0x00007f7cef73556c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f7cf2f28efc in start_thread (arg=0x7f7cbe446700) at pthread_create.c:304
#10 0x00007f7cfde9d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7cfe5bc7c0 (LWP 1642)):
[KCrash Handler]
#6  operator== (value=0, this=0xffffffffffebebf7) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#7  isNull (this=0x36e0000) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#8  operator! (this=0x36e0000) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#9  TaskManager::TaskItem::task (this=<optimized out>) at ../../../libs/taskmanager/taskitem.cpp:113
#10 0x00007f7ce2d7d112 in WindowTaskItem::publishIconGeometry (this=0x4511980) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#11 0x00007f7ce2d8bb7c in AbstractTaskItem::timerEvent (this=0x4511980, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#12 0x00007f7cfb06e789 in QObject::event (this=0x4511980, e=<optimized out>) at kernel/qobject.cpp:1181
#13 0x00007f7cfaa2689b in QGraphicsWidget::event (this=0x4511980, event=0x7fff86a893a0) at graphicsview/qgraphicswidget.cpp:1455
#14 0x00007f7cfa408424 in notify_helper (e=0x7fff86a893a0, receiver=0x4511980, this=0x1275d60) at kernel/qapplication.cpp:4486
#15 QApplicationPrivate::notify_helper (this=0x1275d60, receiver=0x4511980, e=0x7fff86a893a0) at kernel/qapplication.cpp:4458
#16 0x00007f7cfa40d291 in QApplication::notify (this=0x1266cc0, receiver=0x4511980, e=0x7fff86a893a0) at kernel/qapplication.cpp:4365
#17 0x00007f7cfbd06126 in KApplication::notify (this=0x1266cc0, receiver=0x4511980, event=0x7fff86a893a0) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x00007f7cfb057afc in QCoreApplication::notifyInternal (this=0x1266cc0, receiver=0x4511980, event=0x7fff86a893a0) at kernel/qcoreapplication.cpp:787
#19 0x00007f7cfb084d62 in sendEvent (event=0x7fff86a893a0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x127b990) at kernel/qeventdispatcher_unix.cpp:603
#21 0x00007f7cfb082538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#22 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#23 0x00007f7cf241ba5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f7cf241c258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f7cf241c429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f7cfb082ed6 in QEventDispatcherGlib::processEvents (this=0x11c5f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#27 0x00007f7cfa4b007e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x00007f7cfb056cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007f7cfb056ef7 in QEventLoop::exec (this=0x7fff86a89630, flags=...) at kernel/qeventloop.cpp:201
#30 0x00007f7cfb05b789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#31 0x00007f7cfe19c1a3 in kdemain (argc=1, argv=0x7fff86a89a18) at ../../../../plasma/desktop/shell/main.cpp:120
#32 0x00007f7cfdddd30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff86a89a18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff86a89a08) at libc-start.c:226
#33 0x0000000000400671 in _start ()

Possible duplicates by query: bug 291911, bug 291905, bug 291893, bug 291785, bug 291689.

Reported using DrKonqi