Bug 323009

Summary: Plasma desktop crashes when creating a default panel on second monitor
Product: [Unmaintained] plasma4 Reporter: René Romero Benavides <rene.romero.b>
Component: widget-systemtrayAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DUPLICATE    
Severity: crash CC: john, risimi
Priority: NOR    
Version: 4.10.5   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description René Romero Benavides 2013-07-30 16:01:56 UTC 
Application: plasma-desktop (4.10.5)
KDE Platform Version: 4.10.5
Qt Version: 4.8.4
Operating System: Linux 3.10.3-300.fc19.x86_64 x86_64
Distribution: "Fedora release 19 (Schrödinger’s Cat)"

-- Information about the crash:
Laptop monitor on the left, vga monitor on the right, extended desktop, different resolutions, I try to create a default panel in the vga monitor, the screen becomes black for a moment and the default panel doesn't get created. This happens every now and then, sometimes the panel gets created without issues.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7fb2d00108c0 (LWP 1413))]

Thread 12 (Thread 0x7fb2bfd8d700 (LWP 1414)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000034bff8609b in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x34c0283f00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00000034bff860d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x000000349e007c53 in start_thread (arg=0x7fb2bfd8d700) at pthread_create.c:308
#4  0x000000349d8f513d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 11 (Thread 0x7fb2375e5700 (LWP 1415)):
#0  0x000000349d8eab6d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000349fc480f4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7fb230002bb0, timeout=-1, context=0x7fb2300009a0) at gmain.c:3995
#2  g_main_context_iterate (context=context@entry=0x7fb2300009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3696
#3  0x000000349fc481fc in g_main_context_iteration (context=0x7fb2300009a0, may_block=1) at gmain.c:3762
#4  0x00000034a91a6cd6 in QEventDispatcherGlib::processEvents (this=0x7fb2300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00000034a9178bdf in QEventLoop::processEvents (this=this@entry=0x7fb2375e4ce0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00000034a9178ed5 in QEventLoop::exec (this=this@entry=0x7fb2375e4ce0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00000034a907862f in QThread::exec (this=this@entry=0x202d800) at thread/qthread.cpp:542
#8  0x00000034a915a443 in QInotifyFileSystemWatcherEngine::run (this=0x202d800) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00000034a907accf in QThreadPrivate::start (arg=0x202d800) at thread/qthread_unix.cpp:338
#10 0x000000349e007c53 in start_thread (arg=0x7fb2375e5700) at pthread_create.c:308
#11 0x000000349d8f513d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 10 (Thread 0x7fb226c00700 (LWP 1473)):
#0  0x000000349fc87249 in g_mutex_lock (mutex=mutex@entry=0x7fb2200009a0) at gthread-posix.c:210
#1  0x000000349fc481e8 in g_main_context_iteration (context=0x7fb2200009a0, may_block=1) at gmain.c:3761
#2  0x00000034a91a6cd6 in QEventDispatcherGlib::processEvents (this=0x7fb2200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#3  0x00000034a9178bdf in QEventLoop::processEvents (this=this@entry=0x7fb226bffce0, flags=...) at kernel/qeventloop.cpp:149
#4  0x00000034a9178ed5 in QEventLoop::exec (this=this@entry=0x7fb226bffce0, flags=...) at kernel/qeventloop.cpp:204
#5  0x00000034a907862f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#6  0x00007fb22729f377 in KCupsConnection::run() () from /lib64/libkcupslib.so
#7  0x00000034a907accf in QThreadPrivate::start (arg=0x3f8eb50) at thread/qthread_unix.cpp:338
#8  0x000000349e007c53 in start_thread (arg=0x7fb226c00700) at pthread_create.c:308
#9  0x000000349d8f513d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 9 (Thread 0x7fb224bde700 (LWP 5962)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000034a907b1a6 in wait (time=18446744073709551615, this=0x20923e0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x212c1c8, mutex=0x207ca90, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000322f60a67c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x212c1a0, th=0x208a670) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000322f60d27b in ThreadWeaver::WorkingHardState::applyForWork (this=0x20844c0, th=0x208a670) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000322f60d294 in ThreadWeaver::WorkingHardState::applyForWork (this=0x20844c0, th=0x208a670) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x000000322f60bea9 in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7fb224bddd20, parent=0x212c1a0, th=th@entry=0x208a670) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:87
#7  0x000000322f60bf50 in ThreadWeaver::Thread::run (this=0x208a670) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:142
#8  0x00000034a907accf in QThreadPrivate::start (arg=0x208a670) at thread/qthread_unix.cpp:338
#9  0x000000349e007c53 in start_thread (arg=0x7fb224bde700) at pthread_create.c:308
#10 0x000000349d8f513d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 8 (Thread 0x7fb225df0700 (LWP 5963)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000034a907b1a6 in wait (time=18446744073709551615, this=0x20923e0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x212c1c8, mutex=0x207ca90, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000322f60a67c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x212c1a0, th=0x2177990) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000322f60d27b in ThreadWeaver::WorkingHardState::applyForWork (this=0x20844c0, th=0x2177990) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000322f60d294 in ThreadWeaver::WorkingHardState::applyForWork (this=0x20844c0, th=0x2177990) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x000000322f60bea9 in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7fb225defd20, parent=0x212c1a0, th=th@entry=0x2177990) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:87
#7  0x000000322f60bf50 in ThreadWeaver::Thread::run (this=0x2177990) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:142
#8  0x00000034a907accf in QThreadPrivate::start (arg=0x2177990) at thread/qthread_unix.cpp:338
#9  0x000000349e007c53 in start_thread (arg=0x7fb225df0700) at pthread_create.c:308
#10 0x000000349d8f513d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 7 (Thread 0x7fb2161dd700 (LWP 5964)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000034a907b1a6 in wait (time=18446744073709551615, this=0x20923e0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x212c1c8, mutex=0x207ca90, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000322f60a67c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x212c1a0, th=0x51492a0) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000322f60d27b in ThreadWeaver::WorkingHardState::applyForWork (this=0x20844c0, th=0x51492a0) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000322f60d294 in ThreadWeaver::WorkingHardState::applyForWork (this=0x20844c0, th=0x51492a0) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x000000322f60bea9 in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7fb2161dcd20, parent=0x212c1a0, th=th@entry=0x51492a0) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:87
#7  0x000000322f60bf50 in ThreadWeaver::Thread::run (this=0x51492a0) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:142
#8  0x00000034a907accf in QThreadPrivate::start (arg=0x51492a0) at thread/qthread_unix.cpp:338
#9  0x000000349e007c53 in start_thread (arg=0x7fb2161dd700) at pthread_create.c:308
#10 0x000000349d8f513d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7fb2159dc700 (LWP 5965)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000034a907b1a6 in wait (time=18446744073709551615, this=0x20923e0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x212c1c8, mutex=0x207ca90, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000322f60a67c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x212c1a0, th=0x3c45200) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000322f60d27b in ThreadWeaver::WorkingHardState::applyForWork (this=0x20844c0, th=0x3c45200) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000322f60bea9 in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7fb2159dbd20, parent=0x212c1a0, th=th@entry=0x3c45200) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:87
#6  0x000000322f60bf50 in ThreadWeaver::Thread::run (this=0x3c45200) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:142
#7  0x00000034a907accf in QThreadPrivate::start (arg=0x3c45200) at thread/qthread_unix.cpp:338
#8  0x000000349e007c53 in start_thread (arg=0x7fb2159dc700) at pthread_create.c:308
#9  0x000000349d8f513d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7fb2151db700 (LWP 5966)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000034a907b1a6 in wait (time=18446744073709551615, this=0x20923e0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x212c1c8, mutex=0x207ca90, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000322f60a67c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x212c1a0, th=0x31aad60) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000322f60d27b in ThreadWeaver::WorkingHardState::applyForWork (this=0x20844c0, th=0x31aad60) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000322f60bea9 in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7fb2151dad20, parent=0x212c1a0, th=th@entry=0x31aad60) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:87
#6  0x000000322f60bf50 in ThreadWeaver::Thread::run (this=0x31aad60) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:142
#7  0x00000034a907accf in QThreadPrivate::start (arg=0x31aad60) at thread/qthread_unix.cpp:338
#8  0x000000349e007c53 in start_thread (arg=0x7fb2151db700) at pthread_create.c:308
#9  0x000000349d8f513d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7fb2149da700 (LWP 5967)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000034a907b1a6 in wait (time=18446744073709551615, this=0x20923e0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x212c1c8, mutex=0x207ca90, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000322f60a67c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x212c1a0, th=0x430b450) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000322f60d27b in ThreadWeaver::WorkingHardState::applyForWork (this=0x20844c0, th=0x430b450) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000322f60d294 in ThreadWeaver::WorkingHardState::applyForWork (this=0x20844c0, th=0x430b450) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x000000322f60bea9 in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7fb2149d9d20, parent=0x212c1a0, th=th@entry=0x430b450) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:87
#7  0x000000322f60bf50 in ThreadWeaver::Thread::run (this=0x430b450) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:142
#8  0x00000034a907accf in QThreadPrivate::start (arg=0x430b450) at thread/qthread_unix.cpp:338
#9  0x000000349e007c53 in start_thread (arg=0x7fb2149da700) at pthread_create.c:308
#10 0x000000349d8f513d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7fb207fff700 (LWP 5968)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000034a907b1a6 in wait (time=18446744073709551615, this=0x20923e0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x212c1c8, mutex=0x207ca90, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000322f60a67c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x212c1a0, th=0x20858d0) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000322f60d27b in ThreadWeaver::WorkingHardState::applyForWork (this=0x20844c0, th=0x20858d0) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000322f60bea9 in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7fb207ffed20, parent=0x212c1a0, th=th@entry=0x20858d0) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:87
#6  0x000000322f60bf50 in ThreadWeaver::Thread::run (this=0x20858d0) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:142
#7  0x00000034a907accf in QThreadPrivate::start (arg=0x20858d0) at thread/qthread_unix.cpp:338
#8  0x000000349e007c53 in start_thread (arg=0x7fb207fff700) at pthread_create.c:308
#9  0x000000349d8f513d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7fb2077fe700 (LWP 5969)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000034a907b1a6 in wait (time=18446744073709551615, this=0x20923e0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x212c1c8, mutex=0x207ca90, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x000000322f60a67c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x212c1a0, th=0x4f6b940) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x000000322f60d27b in ThreadWeaver::WorkingHardState::applyForWork (this=0x20844c0, th=0x4f6b940) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x000000322f60bea9 in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7fb2077fdd20, parent=0x212c1a0, th=th@entry=0x4f6b940) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:87
#6  0x000000322f60bf50 in ThreadWeaver::Thread::run (this=0x4f6b940) at /usr/src/debug/kdelibs-4.10.5/threadweaver/Weaver/Thread.cpp:142
#7  0x00000034a907accf in QThreadPrivate::start (arg=0x4f6b940) at thread/qthread_unix.cpp:338
#8  0x000000349e007c53 in start_thread (arg=0x7fb2077fe700) at pthread_create.c:308
#9  0x000000349d8f513d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fb2d00108c0 (LWP 1413)):
[KCrash Handler]
#6  0x00000034a918ebb2 in QObject::connect (sender=sender@entry=0x4c2fce0, signal=signal@entry=0x7fb2c1bb4869 "2destroyed()", receiver=receiver@entry=0x4db6b50, method=method@entry=0x7fb2c1bb4858 "1widgetDeleted()", type=type@entry=Qt::AutoConnection) at kernel/qobject.cpp:2550
#7  0x00007fb2c1b9c7df in SystemTray::Task::widget (this=this@entry=0x4db6b50, host=host@entry=0x4e7a8b0, createIfNecessary=createIfNecessary@entry=true) at /usr/src/debug/kde-workspace-4.10.5/plasma/generic/applets/systemtray/core/task.cpp:80
#8  0x00007fb2c1bb06e0 in SystemTray::Applet::_onAddedTask (this=this@entry=0x4e7a8b0, task=0x4db6b50) at /usr/src/debug/kde-workspace-4.10.5/plasma/generic/applets/systemtray/ui/applet.cpp:196
#9  0x00007fb2c1bb0aab in SystemTray::Applet::_onWidgetCreationFinished (this=0x4e7a8b0) at /usr/src/debug/kde-workspace-4.10.5/plasma/generic/applets/systemtray/ui/applet.cpp:278
#10 0x00007fb2c1bb0d85 in SystemTray::Applet::qt_static_metacall (_o=0x4c2fce0, _id=-1044690839, _a=0x7fff1e8031a0, _c=<optimized out>) at /usr/src/debug/kde-workspace-4.10.5/x86_64-redhat-linux-gnu/plasma/generic/applets/systemtray/applet.moc:143
#11 0x00000034a918dadc in QMetaObject::activate (sender=0x54a5200, m=m@entry=0x3c74f17de0 <Plasma::DeclarativeWidget::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#12 0x0000003c74be0110 in Plasma::DeclarativeWidget::finished (this=<optimized out>) at /usr/src/debug/kdelibs-4.10.5/x86_64-redhat-linux-gnu/plasma/declarativewidget.moc:156
#13 0x0000003c74be086f in Plasma::DeclarativeWidgetPrivate::finishExecute (this=0x5160080) at /usr/src/debug/kdelibs-4.10.5/plasma/widgets/declarativewidget.cpp:216
#14 0x00000034a9191e4e in QObject::event (this=this@entry=0x54a5200, e=e@entry=0x43912c0) at kernel/qobject.cpp:1194
#15 0x00000038789c003b in QGraphicsWidget::event (this=0x54a5200, event=0x43912c0) at graphicsview/qgraphicswidget.cpp:1461
#16 0x00000038783c846c in QApplicationPrivate::notify_helper (this=0x17712f0, receiver=0x54a5200, e=0x43912c0) at kernel/qapplication.cpp:4562
#17 0x00000038783cea30 in QApplication::notify (this=this@entry=0x1766320, receiver=receiver@entry=0x54a5200, e=e@entry=0x43912c0) at kernel/qapplication.cpp:4348
#18 0x000000322c8415ba in KApplication::notify (this=0x1766320, receiver=0x54a5200, event=0x43912c0) at /usr/src/debug/kdelibs-4.10.5/kdeui/kernel/kapplication.cpp:311
#19 0x00000034a9179f7d in QCoreApplication::notifyInternal (this=0x1766320, receiver=receiver@entry=0x54a5200, event=event@entry=0x43912c0) at kernel/qcoreapplication.cpp:949
#20 0x00000034a917cd3f in sendEvent (event=0x43912c0, receiver=0x54a5200) at kernel/qcoreapplication.h:231
#21 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x16fd800) at kernel/qcoreapplication.cpp:1573
#22 0x00000034a917d1e3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1466
#23 0x00000034a91a72d3 in sendPostedEvents () at kernel/qcoreapplication.h:236
#24 postEventSourceDispatch (s=s@entry=0x1773630) at kernel/qeventdispatcher_glib.cpp:279
#25 0x000000349fc47e06 in g_main_dispatch (context=0x176e5f0) at gmain.c:3054
#26 g_main_context_dispatch (context=context@entry=0x176e5f0) at gmain.c:3630
#27 0x000000349fc48158 in g_main_context_iterate (context=context@entry=0x176e5f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3701
#28 0x000000349fc481fc in g_main_context_iteration (context=0x176e5f0, may_block=1) at gmain.c:3762
#29 0x00000034a91a6cb5 in QEventDispatcherGlib::processEvents (this=0x16ff160, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#30 0x0000003878464d56 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#31 0x00000034a9178bdf in QEventLoop::processEvents (this=this@entry=0x7fff1e803910, flags=...) at kernel/qeventloop.cpp:149
#32 0x00000034a9178ed5 in QEventLoop::exec (this=this@entry=0x7fff1e803910, flags=...) at kernel/qeventloop.cpp:204
#33 0x00000034a917dfbb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#34 0x00000038783c6c2c in QApplication::exec () at kernel/qapplication.cpp:3823
#35 0x0000003c75e3c47c in kdemain (argc=1, argv=0x7fff1e803b68) at /usr/src/debug/kde-workspace-4.10.5/plasma/desktop/shell/main.cpp:126
#36 0x000000349d821b75 in __libc_start_main (main=0x400940 <main(int, char**)>, argc=1, ubp_av=0x7fff1e803b68, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff1e803b58) at libc-start.c:258
#37 0x0000000000400971 in _start ()

Possible duplicates by query: bug 318414.

Reported using DrKonqi
Comment 1 Jekyll Wu 2013-07-31 00:57:02 UTC 
*** Bug 318414 has been marked as a duplicate of this bug. ***
Comment 2 Dominik Haumann 2013-08-30 22:08:14 UTC 

*** This bug has been marked as a duplicate of bug 323679 ***
Comment 3 john 2014-06-05 16:22:43 UTC 
Created attachment 87027 [details]
New crash information added by DrKonqi

plasma-desktop (4.11.9) on KDE Platform 4.13.0 using Qt 4.8.6

- What I was doing when the application crashed: Tried to create a default panel on a second monitor. 

- Unusual behavior I noticed: Desktop went black for a while, some windows changed into the foreground. No panel was created.

-- Backtrace (Reduced):
#6  0x00007ff69ef86992 in QObject::connect (sender=sender@entry=0x1465670, signal=signal@entry=0x7ff679d4f569 "2destroyed()", receiver=receiver@entry=0x1fcf910, method=method@entry=0x7ff679d4f558 "1widgetDeleted()", type=type@entry=Qt::AutoConnection) at kernel/qobject.cpp:2546
#7  0x00007ff679d3769f in SystemTray::Task::widget (this=this@entry=0x1fcf910, host=host@entry=0x14a07e0, createIfNecessary=createIfNecessary@entry=true) at ../../../../../plasma/generic/applets/systemtray/core/task.cpp:80
#8  0x00007ff679d4b010 in SystemTray::Applet::_onAddedTask (this=this@entry=0x14a07e0, task=0x1fcf910) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:196
#9  0x00007ff679d4b3cb in SystemTray::Applet::_onWidgetCreationFinished (this=0x14a07e0) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:278
#10 0x00007ff679d4b6a5 in SystemTray::Applet::qt_static_metacall (_o=0x1465670, _id=2043999593, _a=0x7fff985a8a30, _c=<optimized out>) at ./applet.moc:143