Bug 262318

Application: plasma-netbook (0.1)
KDE Platform Version: 4.4.5 (KDE 4.4.5)
Qt Version: 4.6.3
Operating System: Linux 2.6.37-rc7-amd64 x86_64
Distribution: Debian GNU/Linux testing (squeeze)

-- Information about the crash:
I was trying to add a lock/logout widget to the panel.
It only makes plasma crash when I try to put the widget just on the immediate left of the area used for selecting windows (where it's writen "* running apps").
If I put it anywhere else, it works.

The crash can be reproduced every time.

 -- Backtrace:
Application: Plasma Netbook (plasma-netbook), signal: Segmentation fault
[Current thread is 1 (Thread 0xf1eeb720 (LWP 22688))]

Thread 7 (Thread 0xe54ffb70 (LWP 22690)):
#0  0xf7710430 in __kernel_vsyscall ()
#1  0xf4293f7f in __pthread_cond_wait (cond=0xf59fa62c, mutex=0xf59fa614) at pthread_cond_wait.c:153
#2  0xf766fe0d in __pthread_cond_wait (cond=0xf59fa62c, mutex=0xf59fa614) at forward.c:139
#3  0xf4c4a107 in ?? () from /usr/lib/libQtWebKit.so.4
#4  0xf4c4a151 in ?? () from /usr/lib/libQtWebKit.so.4
#5  0xf428f955 in start_thread (arg=0xe54ffb70) at pthread_create.c:300
#6  0xf7662e7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 6 (Thread 0xe3ba3b70 (LWP 22693)):
#0  0xf7710430 in __kernel_vsyscall ()
#1  0xf4293f7f in __pthread_cond_wait (cond=0xe61a726c, mutex=0xe61a7254) at pthread_cond_wait.c:153
#2  0xf766fe0d in __pthread_cond_wait (cond=0xe61a726c, mutex=0xe61a7254) at forward.c:139
#3  0xe60c9427 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xe61a2180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2304
#4  0xe60c9471 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xe61a2180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1438
#5  0xf428f955 in start_thread (arg=0xe3ba3b70) at pthread_create.c:300
#6  0xf7662e7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 5 (Thread 0xe006fb70 (LWP 22702)):
#0  0xf7710430 in __kernel_vsyscall ()
#1  0xf4293f7f in __pthread_cond_wait (cond=0xa2a6848, mutex=0xa2a6830) at pthread_cond_wait.c:153
#2  0xf766fe0d in __pthread_cond_wait (cond=0xa2a6848, mutex=0xa2a6830) at forward.c:139
#3  0xf68defb7 in QWaitConditionPrivate::wait (this=0xa2a65f8, mutex=0xa30b100, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0xa2a65f8, mutex=0xa30b100, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0xf49ac682 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xa2a65e0, th=0xa2d0c40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0xf49af3dc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0xa2a6a80, th=0xa2d0c40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0xf49ab24b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0xa2a65e0, th=0xa2d0c40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0xf49af4d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0xa2a6a80, th=0xa2d0c40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0xf49acbe3 in ThreadWeaver::WeaverImpl::applyForWork (this=0xa2a65e0, th=0xa2d0c40, previous=0xaf7d188) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0xf49ad57e in ThreadWeaver::ThreadRunHelper::run (this=0xe006f2e4, parent=0xa2a65e0, th=0xa2d0c40) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0xf49adc9b in ThreadWeaver::Thread::run (this=0xa2d0c40) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0xf68ddfbe in QThreadPrivate::start (arg=0xa2d0c40) at thread/qthread_unix.cpp:248
#13 0xf428f955 in start_thread (arg=0xe006fb70) at pthread_create.c:300
#14 0xf7662e7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 4 (Thread 0xdf705b70 (LWP 22703)):
#0  0xf7710430 in __kernel_vsyscall ()
#1  0xf4293f7f in __pthread_cond_wait (cond=0xa2a6848, mutex=0xa2a6830) at pthread_cond_wait.c:153
#2  0xf766fe0d in __pthread_cond_wait (cond=0xa2a6848, mutex=0xa2a6830) at forward.c:139
#3  0xf68defb7 in QWaitConditionPrivate::wait (this=0xa2a65f8, mutex=0xa30b100, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0xa2a65f8, mutex=0xa30b100, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0xf49ac682 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xa2a65e0, th=0xa4d8a20) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0xf49af3dc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0xa2a6a80, th=0xa4d8a20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0xf49ab24b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0xa2a65e0, th=0xa4d8a20) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0xf49af4d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0xa2a6a80, th=0xa4d8a20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0xf49acbe3 in ThreadWeaver::WeaverImpl::applyForWork (this=0xa2a65e0, th=0xa4d8a20, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0xf49af4f1 in ThreadWeaver::WorkingHardState::applyForWork (this=0xa2a6a80, th=0xa4d8a20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0xf49acbe3 in ThreadWeaver::WeaverImpl::applyForWork (this=0xa2a65e0, th=0xa4d8a20, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0xf49af4f1 in ThreadWeaver::WorkingHardState::applyForWork (this=0xa2a6a80, th=0xa4d8a20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#13 0xf49acbe3 in ThreadWeaver::WeaverImpl::applyForWork (this=0xa2a65e0, th=0xa4d8a20, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#14 0xf49ad57e in ThreadWeaver::ThreadRunHelper::run (this=0xdf7052e4, parent=0xa2a65e0, th=0xa4d8a20) at ../../../threadweaver/Weaver/Thread.cpp:87
#15 0xf49adc9b in ThreadWeaver::Thread::run (this=0xa4d8a20) at ../../../threadweaver/Weaver/Thread.cpp:142
#16 0xf68ddfbe in QThreadPrivate::start (arg=0xa4d8a20) at thread/qthread_unix.cpp:248
#17 0xf428f955 in start_thread (arg=0xdf705b70) at pthread_create.c:300
#18 0xf7662e7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xdef04b70 (LWP 22704)):
#0  0xf7710430 in __kernel_vsyscall ()
#1  0xf4293f7f in __pthread_cond_wait (cond=0xa2a6848, mutex=0xa2a6830) at pthread_cond_wait.c:153
#2  0xf766fe0d in __pthread_cond_wait (cond=0xa2a6848, mutex=0xa2a6830) at forward.c:139
#3  0xf68defb7 in QWaitConditionPrivate::wait (this=0xa2a65f8, mutex=0xa30b100, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0xa2a65f8, mutex=0xa30b100, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0xf49ac682 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xa2a65e0, th=0xaa0de20) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0xf49af3dc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0xa2a6a80, th=0xaa0de20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0xf49ab24b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0xa2a65e0, th=0xaa0de20) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0xf49af4d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0xa2a6a80, th=0xaa0de20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0xf49acbe3 in ThreadWeaver::WeaverImpl::applyForWork (this=0xa2a65e0, th=0xaa0de20, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0xf49af4f1 in ThreadWeaver::WorkingHardState::applyForWork (this=0xa2a6a80, th=0xaa0de20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0xf49acbe3 in ThreadWeaver::WeaverImpl::applyForWork (this=0xa2a65e0, th=0xaa0de20, previous=0xae16240) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0xf49ad57e in ThreadWeaver::ThreadRunHelper::run (this=0xdef042e4, parent=0xa2a65e0, th=0xaa0de20) at ../../../threadweaver/Weaver/Thread.cpp:87
#13 0xf49adc9b in ThreadWeaver::Thread::run (this=0xaa0de20) at ../../../threadweaver/Weaver/Thread.cpp:142
#14 0xf68ddfbe in QThreadPrivate::start (arg=0xaa0de20) at thread/qthread_unix.cpp:248
#15 0xf428f955 in start_thread (arg=0xdef04b70) at pthread_create.c:300
#16 0xf7662e7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xe5efab70 (LWP 22705)):
#0  0xf7710430 in __kernel_vsyscall ()
#1  0xf4293f7f in __pthread_cond_wait (cond=0xa2a6848, mutex=0xa2a6830) at pthread_cond_wait.c:153
#2  0xf766fe0d in __pthread_cond_wait (cond=0xa2a6848, mutex=0xa2a6830) at forward.c:139
#3  0xf68defb7 in QWaitConditionPrivate::wait (this=0xa2a65f8, mutex=0xa30b100, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0xa2a65f8, mutex=0xa30b100, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0xf49ac682 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xa2a65e0, th=0xaf5d488) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0xf49af3dc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0xa2a6a80, th=0xaf5d488) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0xf49ab24b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0xa2a65e0, th=0xaf5d488) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0xf49af4d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0xa2a6a80, th=0xaf5d488) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0xf49acbe3 in ThreadWeaver::WeaverImpl::applyForWork (this=0xa2a65e0, th=0xaf5d488, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0xf49ad57e in ThreadWeaver::ThreadRunHelper::run (this=0xe5efa2e4, parent=0xa2a65e0, th=0xaf5d488) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0xf49adc9b in ThreadWeaver::Thread::run (this=0xaf5d488) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0xf68ddfbe in QThreadPrivate::start (arg=0xaf5d488) at thread/qthread_unix.cpp:248
#13 0xf428f955 in start_thread (arg=0xe5efab70) at pthread_create.c:300
#14 0xf7662e7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xf1eeb720 (LWP 22688)):
[KCrash Handler]
#6  QCoreApplication::postEvent (receiver=0xaa8ffd8, event=0xb0d3d90, priority=0) at kernel/qcoreapplication.cpp:1127
#7  0xf69da43c in QCoreApplication::postEvent (receiver=0xaa8ffd8, event=0xb0d3d90) at kernel/qcoreapplication.cpp:1088
#8  0xf69ea2a4 in QObject::deleteLater (this=0xaa8ffd8) at kernel/qobject.cpp:2158
#9  0xf5fc2ff5 in QX11Data::xdndHandleFinished (this=0x9f2ef60, xe=0xff80ce80, passive=false) at kernel/qdnd_x11.cpp:1235
#10 0xf5fa4806 in QApplication::x11ClientMessage (this=0x9f1fb38, w=0xb251898, event=0xff80ce80, passive_only=169) at kernel/qapplication_x11.cpp:3102
#11 0xf5fb35f6 in QApplication::x11ProcessEvent (this=0x9f1fb38, event=0xff80ce80) at kernel/qapplication_x11.cpp:3645
#12 0xf5fe2372 in x11EventSourceDispatch (s=0x9f20410, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#13 0xf41ed305 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#14 0xf41f0fe8 in ?? () from /lib/libglib-2.0.so.0
#15 0xf41f11c8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#16 0xf6a06075 in QEventDispatcherGlib::processEvents (this=0x9ee9ba0, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#17 0xf5fe1ed5 in QGuiEventDispatcherGlib::processEvents (this=0x9ee9ba0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#18 0xf69d8ae9 in QEventLoop::processEvents (this=0xff80d174, flags=) at kernel/qeventloop.cpp:149
#19 0xf69d8f3a in QEventLoop::exec (this=0xff80d174, flags=...) at kernel/qeventloop.cpp:201
#20 0xf69de16f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#21 0xf5f23667 in QApplication::exec () at kernel/qapplication.cpp:3581
#22 0xf7702291 in kdemain (argc=1, argv=0xff80d3c4) at ../../../../plasma/netbook/shell/main.cpp:79
#23 0x0804861b in main (argc=1, argv=0xff80d3c4) at plasma-netbook_dummy.cpp:3

This bug may be a duplicate of or related to bug 182511.

Possible duplicates by query: bug 261887, bug 261741, bug 261405, bug 260767, bug 259248.

Reported using DrKonqi