Bug 261689

Summary:	Plasma crash when alt+tabbing
Product:	[Unmaintained] plasma4	Reporter:	Anthony Foglia <afoglia>
Component:	general	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	andresbajotierra
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Anthony Foglia 2010-12-31 05:48:57 UTC

Application: plasma-desktop (0.3)
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-24-generic x86_64
Distribution: Ubuntu 10.10

-- Information about the crash:
- What I was doing when the application crashed:

I was switching from firefox to a terminal with alt+tab when the crash occurred.  The error is not consistently reproducible.  So far it has just happened the once.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fbe0e9a0780 (LWP 2376))]

Thread 10 (Thread 0x7fbde7daa700 (LWP 2379)):
#0  0x00007fbe0e2b0203 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fbe02f2e009 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007fbe02f2e45c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007fbe0b9651e6 in QEventDispatcherGlib::processEvents (this=0x15e1eb0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#4  0x00007fbe0b937a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007fbe0b937dec in QEventLoop::exec (this=0x7fbde7da9d90, flags=) at kernel/qeventloop.cpp:201
#6  0x00007fbe0b8422fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007fbe0b9175f8 in QInotifyFileSystemWatcherEngine::run (this=0x15e12e0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fbe0b84527e in QThreadPrivate::start (arg=0x15e12e0) at thread/qthread_unix.cpp:266
#9  0x00007fbe0b5ba971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#10 0x00007fbe0e2bc92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7fbde6f65700 (LWP 8263)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbe0b845e3b in wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fbe08144524 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x18db690, th=0x2681f00) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fbe0814772b in ThreadWeaver::WorkingHardState::applyForWork (this=0x18dde90, th=0x2681f00) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fbe08145c9f in ThreadWeaver::ThreadRunHelper::run (this=0x7fbde6f64de0, parent=0x18db690, th=0x2681f00) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fbe081461f8 in ThreadWeaver::Thread::run (this=0x2681f00) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fbe0b84527e in QThreadPrivate::start (arg=0x2681f00) at thread/qthread_unix.cpp:266
#8  0x00007fbe0b5ba971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#9  0x00007fbe0e2bc92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fbdddb2f700 (LWP 8264)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbe0b845e3b in wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fbe08144524 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x18db690, th=0x7fbde8002a20) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fbe0814772b in ThreadWeaver::WorkingHardState::applyForWork (this=0x18dde90, th=0x7fbde8002a20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fbe08145c9f in ThreadWeaver::ThreadRunHelper::run (this=0x7fbdddb2ede0, parent=0x18db690, th=0x7fbde8002a20) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fbe081461f8 in ThreadWeaver::Thread::run (this=0x7fbde8002a20) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fbe0b84527e in QThreadPrivate::start (arg=0x7fbde8002a20) at thread/qthread_unix.cpp:266
#8  0x00007fbe0b5ba971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#9  0x00007fbe0e2bc92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fbdde330700 (LWP 8265)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbe0b845e3b in wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fbe08144524 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x18db690, th=0x7fbde8005150) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fbe0814772b in ThreadWeaver::WorkingHardState::applyForWork (this=0x18dde90, th=0x7fbde8005150) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fbe08147744 in ThreadWeaver::WorkingHardState::applyForWork (this=0x18dde90, th=0x7fbde8005150) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fbe08145c9f in ThreadWeaver::ThreadRunHelper::run (this=0x7fbdde32fde0, parent=0x18db690, th=0x7fbde8005150) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007fbe081461f8 in ThreadWeaver::Thread::run (this=0x7fbde8005150) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007fbe0b84527e in QThreadPrivate::start (arg=0x7fbde8005150) at thread/qthread_unix.cpp:266
#9  0x00007fbe0b5ba971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#10 0x00007fbe0e2bc92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fbde1ffc700 (LWP 8266)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbe0b845e3b in wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fbe08144524 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x18db690, th=0x21f1230) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fbe0814772b in ThreadWeaver::WorkingHardState::applyForWork (this=0x18dde90, th=0x21f1230) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fbe08145c9f in ThreadWeaver::ThreadRunHelper::run (this=0x7fbde1ffbde0, parent=0x18db690, th=0x21f1230) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fbe081461f8 in ThreadWeaver::Thread::run (this=0x21f1230) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fbe0b84527e in QThreadPrivate::start (arg=0x21f1230) at thread/qthread_unix.cpp:266
#8  0x00007fbe0b5ba971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#9  0x00007fbe0e2bc92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fbddbafa700 (LWP 8267)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbe0b845e3b in wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fbe08144524 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x18db690, th=0x2436d50) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fbe0814772b in ThreadWeaver::WorkingHardState::applyForWork (this=0x18dde90, th=0x2436d50) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fbe08147744 in ThreadWeaver::WorkingHardState::applyForWork (this=0x18dde90, th=0x2436d50) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fbe08147744 in ThreadWeaver::WorkingHardState::applyForWork (this=0x18dde90, th=0x2436d50) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007fbe08145c9f in ThreadWeaver::ThreadRunHelper::run (this=0x7fbddbaf9de0, parent=0x18db690, th=0x2436d50) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007fbe081461f8 in ThreadWeaver::Thread::run (this=0x2436d50) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007fbe0b84527e in QThreadPrivate::start (arg=0x2436d50) at thread/qthread_unix.cpp:266
#10 0x00007fbe0b5ba971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#11 0x00007fbe0e2bc92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fbddb2f9700 (LWP 8268)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbe0b845e3b in wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fbe08144524 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x18db690, th=0x26c6df0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fbe0814772b in ThreadWeaver::WorkingHardState::applyForWork (this=0x18dde90, th=0x26c6df0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fbe08147744 in ThreadWeaver::WorkingHardState::applyForWork (this=0x18dde90, th=0x26c6df0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fbe08145c9f in ThreadWeaver::ThreadRunHelper::run (this=0x7fbddb2f8de0, parent=0x18db690, th=0x26c6df0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007fbe081461f8 in ThreadWeaver::Thread::run (this=0x26c6df0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007fbe0b84527e in QThreadPrivate::start (arg=0x26c6df0) at thread/qthread_unix.cpp:266
#9  0x00007fbe0b5ba971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#10 0x00007fbe0e2bc92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fbddaaf8700 (LWP 8269)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbe0b845e3b in wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fbe08144524 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x18db690, th=0x7fbde8008030) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fbe0814772b in ThreadWeaver::WorkingHardState::applyForWork (this=0x18dde90, th=0x7fbde8008030) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fbe08145c9f in ThreadWeaver::ThreadRunHelper::run (this=0x7fbddaaf7de0, parent=0x18db690, th=0x7fbde8008030) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fbe081461f8 in ThreadWeaver::Thread::run (this=0x7fbde8008030) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fbe0b84527e in QThreadPrivate::start (arg=0x7fbde8008030) at thread/qthread_unix.cpp:266
#8  0x00007fbe0b5ba971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#9  0x00007fbe0e2bc92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fbdda2f7700 (LWP 8270)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbe0b845e3b in wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x18dcd90, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fbe08144524 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x18db690, th=0x23fc0c0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fbe0814772b in ThreadWeaver::WorkingHardState::applyForWork (this=0x18dde90, th=0x23fc0c0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fbe08145c9f in ThreadWeaver::ThreadRunHelper::run (this=0x7fbdda2f6de0, parent=0x18db690, th=0x23fc0c0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fbe081461f8 in ThreadWeaver::Thread::run (this=0x23fc0c0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fbe0b84527e in QThreadPrivate::start (arg=0x23fc0c0) at thread/qthread_unix.cpp:266
#8  0x00007fbe0b5ba971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#9  0x00007fbe0e2bc92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fbe0e9a0780 (LWP 2376)):
[KCrash Handler]
#6  0x00007fbe0b0bc354 in QGraphicsProxyWidget::widget (this=0x2cce080) at graphicsview/qgraphicsproxywidget.cpp:736
#7  0x00007fbe0dedd639 in Plasma::TreeView::model (this=0x2cce080) at ../../plasma/widgets/treeview.cpp:66
#8  0x00007fbde0fe3c3f in WeatherApplet::weatherContent (this=0x25af590, data=...) at ../../../applets/weather/weatherapplet.cpp:655
#9  0x00007fbde0fe966d in WeatherApplet::dataUpdated (this=0x25af590, source=..., data=...) at ../../../applets/weather/weatherapplet.cpp:758
#10 0x00007fbde0fdfe53 in WeatherApplet::qt_metacall (this=0x25af590, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff7433db80) at ./weatherapplet.moc:81
#11 0x00007fbe0b950b27 in QMetaObject::activate (sender=0x2bf01a0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x2c80130) at kernel/qobject.cpp:3280
#12 0x00007fbe0de2f1b7 in Plasma::SignalRelay::dataUpdated (this=0x2cce080, _t1=<value optimized out>, _t2=<value optimized out>) at ./datacontainer_p.moc:85
#13 0x00007fbe0de2f31e in Plasma::SignalRelay::checkQueueing (this=0x2bf01a0) at ../../plasma/private/datacontainer_p.cpp:115
#14 0x00007fbe0ddf1e52 in Plasma::DataContainer::checkForUpdate (this=0x2cabb40) at ../../plasma/datacontainer.cpp:172
#15 0x00007fbe0ddf65f7 in Plasma::DataEngine::timerEvent (this=<value optimized out>, event=<value optimized out>) at ../../plasma/dataengine.cpp:388
#16 0x00007fbe0b94a8f9 in QObject::event (this=0x2648810, e=0x7fff7433bb50) at kernel/qobject.cpp:1183
#17 0x00007fbe0aa82fdc in QApplicationPrivate::notify_helper (this=0xeaf9d0, receiver=0x2648810, e=0x7fff7433e400) at kernel/qapplication.cpp:4396
#18 0x00007fbe0aa88aed in QApplication::notify (this=0xe9e5f0, receiver=0x2648810, e=0x7fff7433e400) at kernel/qapplication.cpp:4277
#19 0x00007fbe0c5d4156 in KApplication::notify (this=0xe9e5f0, receiver=0x2648810, event=0x7fff7433e400) at ../../kdeui/kernel/kapplication.cpp:310
#20 0x00007fbe0b938cdc in QCoreApplication::notifyInternal (this=0xe9e5f0, receiver=0x2648810, event=0x7fff7433e400) at kernel/qcoreapplication.cpp:732
#21 0x00007fbe0b9686f2 in sendEvent (this=0xeb31b0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#22 QTimerInfoList::activateTimers (this=0xeb31b0) at kernel/qeventdispatcher_unix.cpp:602
#23 0x00007fbe0b9654a4 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#24 0x00007fbe02f2a342 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#25 0x00007fbe02f2e2a8 in ?? () from /lib/libglib-2.0.so.0
#26 0x00007fbe02f2e45c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#27 0x00007fbe0b965193 in QEventDispatcherGlib::processEvents (this=0xe83070, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#28 0x00007fbe0ab35a4e in QGuiEventDispatcherGlib::processEvents (this=0x2cce080, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#29 0x00007fbe0b937a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#30 0x00007fbe0b937dec in QEventLoop::exec (this=0x7fff7433e6a0, flags=) at kernel/qeventloop.cpp:201
#31 0x00007fbe0b93bebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#32 0x00007fbe0e593a56 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:118
#33 0x00007fbe0e1f4d8e in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff7433ea68) at libc-start.c:226
#34 0x0000000000400669 in _start ()

Possible duplicates by query: bug 261461, bug 260711, bug 258412, bug 255493, bug 255473.

Reported using DrKonqi

Comment 1 Dario Andres 2010-12-31 12:26:55 UTC

[Comment from a bug triager]
This issue is related to bug 260711 / bug 221806.
Thanks

*** This bug has been marked as a duplicate of bug 221806 ***