Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.3 (4.6.3)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-9-generic i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
I was playing around with k3b but it also happens when playing audio or video

- Unusual behavior I noticed:
Plasma crashes randomly when dealing with multimedia in other apps.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb76d7980 (LWP 12730))]

Thread 4 (Thread 0xb544eb70 (LWP 12731)):
#0  0x019bfd41 in clock_gettime (clock_id=1, tp=0xb544dff0) at ../sysdeps/unix/clock_gettime.c:116
#1  0x06c68dd8 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x06d354f2 in updateCurrentTime (this=0xa0ba07c, tm=...) at kernel/qeventdispatcher_unix.cpp:339
#4  QTimerInfoList::timerWait (this=0xa0ba07c, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x06d33d32 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xb544e0cc) at kernel/qeventdispatcher_glib.cpp:136
#6  0x06d33dcd in timerSourcePrepare (source=0xa0ba048, timeout=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x08171fd4 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x08172e63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x08173524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x06d34577 in QEventDispatcherGlib::processEvents (this=0xa098f40, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x06d06289 in QEventLoop::processEvents (this=0xb544e280, flags=...) at kernel/qeventloop.cpp:149
#12 0x06d06522 in QEventLoop::exec (this=0xb544e280, flags=...) at kernel/qeventloop.cpp:201
#13 0x06c102a0 in QThread::exec (this=0xa0ba350) at thread/qthread.cpp:492
#14 0x06ce7fdb in QInotifyFileSystemWatcherEngine::run (this=0xa0ba350) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x06c12da2 in QThreadPrivate::start (arg=0xa0ba350) at thread/qthread_unix.cpp:320
#16 0x04533e99 in start_thread (arg=0xb544eb70) at pthread_create.c:304
#17 0x006cf73e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xadfdab70 (LWP 12733)):
#0  0x019bfd41 in clock_gettime (clock_id=1, tp=0xadfd9ff0) at ../sysdeps/unix/clock_gettime.c:116
#1  0x06c68dd8 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x06d354f2 in updateCurrentTime (this=0xa57fdb4, tm=...) at kernel/qeventdispatcher_unix.cpp:339
#4  QTimerInfoList::timerWait (this=0xa57fdb4, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x06d33d32 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xadfda0cc) at kernel/qeventdispatcher_glib.cpp:136
#6  0x06d33dcd in timerSourcePrepare (source=0xa57fd80, timeout=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x08171fd4 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x08172e63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x08173524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x06d34577 in QEventDispatcherGlib::processEvents (this=0xa4c8cc8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x06d06289 in QEventLoop::processEvents (this=0xadfda280, flags=...) at kernel/qeventloop.cpp:149
#12 0x06d06522 in QEventLoop::exec (this=0xadfda280, flags=...) at kernel/qeventloop.cpp:201
#13 0x06c102a0 in QThread::exec (this=0x9c85328) at thread/qthread.cpp:492
#14 0x06ce7fdb in QInotifyFileSystemWatcherEngine::run (this=0x9c85328) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x06c12da2 in QThreadPrivate::start (arg=0x9c85328) at thread/qthread_unix.cpp:320
#16 0x04533e99 in start_thread (arg=0xadfdab70) at pthread_create.c:304
#17 0x006cf73e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xac2bcb70 (LWP 12743)):
#0  0x0084b416 in __kernel_vsyscall ()
#1  0x0453848c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x006dd3fd in __pthread_cond_wait (cond=0x130d2b0, mutex=0x130d298) at forward.c:139
#3  0x011f4817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x13081c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x011f4851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x13081c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x04533e99 in start_thread (arg=0xac2bcb70) at pthread_create.c:304
#6  0x006cf73e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb76d7980 (LWP 12730)):
[KCrash Handler]
#7  0x00000000 in ?? ()
#8  0x06d0d6e9 in QMetaObject::cast (this=0xa15c9c, obj=0xb2c0000) at kernel/qmetaobject.cpp:266
#9  0x00986133 in qobject_cast<Solid::Ifaces::Device*> (this=0xbfb8bd78, type=@0xb0ad748) at /usr/include/qt4/QtCore/qobject.h:366
#10 Solid::Device::asDeviceInterface (this=0xbfb8bd78, type=@0xb0ad748) at ../../../solid/solid/device.cpp:165
#11 0x00990edd in Solid::Predicate::matches (this=0xbfe50a0, device=...) at ../../../solid/solid/predicate.cpp:203
#12 0x00991052 in Solid::Predicate::matches (this=0xb52b05c, device=...) at ../../../solid/solid/predicate.cpp:199
#13 0x0277c4cd in HotplugEngine::predicatesForDevice (this=0xaa8a378, device=...) at ../../../../../plasma/generic/dataengines/hotplug/hotplugengine.cpp:152
#14 0x0277e427 in HotplugEngine::updatePredicates (this=0xaa8a378, path=...) at ../../../../../plasma/generic/dataengines/hotplug/hotplugengine.cpp:127
#15 0x0277e66c in HotplugEngine::qt_metacall (this=0xaa8a378, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xbfb8bea8) at ./hotplugengine.moc:83
#16 0x06d0d6ba in QMetaObject::metacall (object=0xaa8a378, cl=QMetaObject::InvokeMetaMethod, idx=27, argv=0xbfb8bea8) at kernel/qmetaobject.cpp:237
#17 0x06d1d4ff in QMetaObject::activate (sender=0xaa89298, m=0x4040044, local_signal_index=0, argv=0xbfb8bea8) at kernel/qobject.cpp:3287
#18 0x03ec7cf3 in KDirWatch::dirty (this=0xaa89298, _t1=...) at ./kdirwatch.moc:99
#19 0x03ec7d24 in KDirWatch::setDirty (this=0xaa89298, _file=...) at ../../kdecore/io/kdirwatch.cpp:1865
#20 0x03ec8045 in KDirWatch::qt_metacall (this=0xaa89298, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xc1db990) at ./kdirwatch.moc:86
#21 0x06d0d6ba in QMetaObject::metacall (object=0xaa89298, cl=QMetaObject::InvokeMetaMethod, idx=8, argv=0xc1db990) at kernel/qmetaobject.cpp:237
#22 0x06d17e16 in QMetaCallEvent::placeMetaCall (this=0xc7323f8, object=0xaa89298) at kernel/qobject.cpp:535
#23 0x06d1c3b7 in QObject::event (this=0xaa89298, e=0xc7323f8) at kernel/qobject.cpp:1226
#24 0x0340ed24 in QApplicationPrivate::notify_helper (this=0x9c44850, receiver=0xaa89298, e=0xc7323f8) at kernel/qapplication.cpp:4462
#25 0x034138ce in QApplication::notify (this=0x9c21dc8, receiver=0xaa89298, e=0xc7323f8) at kernel/qapplication.cpp:3862
#26 0x00ea4dba in KApplication::notify (this=0x9c21dc8, receiver=0xaa89298, event=0xc7323f8) at ../../kdeui/kernel/kapplication.cpp:311
#27 0x06d070bb in QCoreApplication::notifyInternal (this=0x9c21dc8, receiver=0xaa89298, event=0xc7323f8) at kernel/qcoreapplication.cpp:731
#28 0x06d0ac79 in sendEvent (receiver=0x0, event_type=0, data=0x9ba2f50) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#29 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9ba2f50) at kernel/qcoreapplication.cpp:1372
#30 0x06d0ae0d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#31 0x06d343c4 in sendPostedEvents (s=0x9c3e500) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#32 postEventSourceDispatch (s=0x9c3e500) at kernel/qeventdispatcher_glib.cpp:277
#33 0x08172aa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#34 0x08173270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#35 0x08173524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#36 0x06d3453c in QEventDispatcherGlib::processEvents (this=0x9ba2aa8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#37 0x034c2775 in QGuiEventDispatcherGlib::processEvents (this=0x9ba2aa8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x06d06289 in QEventLoop::processEvents (this=0xbfb8c6c4, flags=...) at kernel/qeventloop.cpp:149
#39 0x06d06522 in QEventLoop::exec (this=0xbfb8c6c4, flags=...) at kernel/qeventloop.cpp:201
#40 0x06d0aecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#41 0x0340c8e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#42 0x004307ab in kdemain (argc=1, argv=0xbfb8c8e4) at ../../../../plasma/desktop/shell/main.cpp:120
#43 0x080485cb in main (argc=1, argv=0xbfb8c8e4) at plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 272294.

Possible duplicates by query: bug 272294.

Reported using DrKonqi