Version:            (using KDE 4.1.4)
Compiler:          gcc version 4.3.2 20081105 (Red Hat 4.3.2-7) (GCC) 
OS:                Linux
Installed from:    Fedora RPMs

Whenever New Device Notifier is on my panel AND an external encrypted USB hard drive is plugged in, plasma seg faults. I.e. it crashes when I start the New Device Notifier if the HD is already plugged in, and it crashes when i plug it in if the New Device Notifier is already running.
I have recently (about a week ago) successfully used the HD without plasma crashing, but fedora updates have run in the mean time.

The USB hard drive is partitioned as follows:
/dev/sdb1 - 498.52GB primary partition with LUCS encrypted ext3 filesystem
/dev/sdb2 - extended partition:
  /dev/sdb5 - 97.65GB logical partition with fat32 filesystem

Backtrace:

Application: Plasma Workspace (plasma), signal SIGSEGV
0x00000034c10a7f81 in nanosleep () from /lib64/libc.so.6
Current language:  auto; currently c
[Current thread is 1 (Thread 0x7f8c58e75840 (LWP 31797))]

Thread 10 (Thread 0x7f8c4ea0e950 (LWP 31798)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00000034ccc5a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82
#2  QWaitCondition::wait (this=0x1ae8468, mutex=0x1ae8460, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154
#3  0x0000000000a66a00 in RenderThread::run (this=0x1ae8450) at /usr/src/debug/kdebase-workspace-4.1.4/plasma/containments/desktop/renderthread.cpp:84
#4  0x00000034ccc59852 in QThreadPrivate::start (arg=0x1ae8450) at thread/qthread_unix.cpp:185
#5  0x00000034c1c073da in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00000034c10e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

Thread 9 (Thread 0x7f8c4dc24950 (LWP 31799)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00000034ccc5a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82
#2  QWaitCondition::wait (this=0x1ad6e88, mutex=0x1ad6e80, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154
#3  0x0000000000a66a00 in RenderThread::run (this=0x1ad6e70) at /usr/src/debug/kdebase-workspace-4.1.4/plasma/containments/desktop/renderthread.cpp:84
#4  0x00000034ccc59852 in QThreadPrivate::start (arg=0x1ad6e70) at thread/qthread_unix.cpp:185
#5  0x00000034c1c073da in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00000034c10e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
Current language:  auto; currently asm

Thread 8 (Thread 0x7f8c4ce3a950 (LWP 31800)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00000034ccc5a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82
#2  QWaitCondition::wait (this=0x7f8c51894f38, mutex=0x7f8c51894f30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154
#3  0x0000000000a66a00 in RenderThread::run (this=0x7f8c51894f20) at /usr/src/debug/kdebase-workspace-4.1.4/plasma/containments/desktop/renderthread.cpp:84
#4  0x00000034ccc59852 in QThreadPrivate::start (arg=0x7f8c51894f20) at thread/qthread_unix.cpp:185
#5  0x00000034c1c073da in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00000034c10e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

Thread 7 (Thread 0x7f8c47fff950 (LWP 31801)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00000034ccc5a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82
#2  QWaitCondition::wait (this=0x7f8c518aa178, mutex=0x7f8c518aa170, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154
#3  0x0000000000a66a00 in RenderThread::run (this=0x7f8c518aa160) at /usr/src/debug/kdebase-workspace-4.1.4/plasma/containments/desktop/renderthread.cpp:84
#4  0x00000034ccc59852 in QThreadPrivate::start (arg=0x7f8c518aa160) at thread/qthread_unix.cpp:185
#5  0x00000034c1c073da in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00000034c10e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

Thread 6 (Thread 0x7f8c46468950 (LWP 31802)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00000034ccc5a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82
#2  QWaitCondition::wait (this=0x1ba9758, mutex=0x1ba9750, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154
#3  0x0000000000a66a00 in RenderThread::run (this=0x1ba9740) at /usr/src/debug/kdebase-workspace-4.1.4/plasma/containments/desktop/renderthread.cpp:84
#4  0x00000034ccc59852 in QThreadPrivate::start (arg=0x1ba9740) at thread/qthread_unix.cpp:185
#5  0x00000034c1c073da in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00000034c10e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

Thread 5 (Thread 0x7f8c475fe950 (LWP 31803)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00000034ccc5a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82
#2  QWaitCondition::wait (this=0x7f8c51893f38, mutex=0x7f8c51893f30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154
#3  0x0000000000a66a00 in RenderThread::run (this=0x7f8c51893f20) at /usr/src/debug/kdebase-workspace-4.1.4/plasma/containments/desktop/renderthread.cpp:84
#4  0x00000034ccc59852 in QThreadPrivate::start (arg=0x7f8c51893f20) at thread/qthread_unix.cpp:185
#5  0x00000034c1c073da in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00000034c10e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

Thread 4 (Thread 0x7f8c4018b950 (LWP 31804)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00000034ccc5a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82
#2  QWaitCondition::wait (this=0x7f8c507d7d48, mutex=0x7f8c507d7d40, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154
#3  0x0000000000a66a00 in RenderThread::run (this=0x7f8c507d7d30) at /usr/src/debug/kdebase-workspace-4.1.4/plasma/containments/desktop/renderthread.cpp:84
#4  0x00000034ccc59852 in QThreadPrivate::start (arg=0x7f8c507d7d30) at thread/qthread_unix.cpp:185
#5  0x00000034c1c073da in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00000034c10e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

Thread 3 (Thread 0x7f8c3ee9f950 (LWP 31805)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00000034ccc5a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82
#2  QWaitCondition::wait (this=0x7f8c50659158, mutex=0x7f8c50659150, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154
#3  0x0000000000a66a00 in RenderThread::run (this=0x7f8c50659140) at /usr/src/debug/kdebase-workspace-4.1.4/plasma/containments/desktop/renderthread.cpp:84
#4  0x00000034ccc59852 in QThreadPrivate::start (arg=0x7f8c50659140) at thread/qthread_unix.cpp:185
#5  0x00000034c1c073da in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00000034c10e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

Thread 2 (Thread 0x7f8c3e49e950 (LWP 31870)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00000034ccc5a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82
#2  QWaitCondition::wait (this=0x7f8c40446450, mutex=0x7f8c40446448, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154
#3  0x00000034cd272eac in QHostInfoAgent::run (this=0x7f8c40446430) at kernel/qhostinfo.cpp:241
#4  0x00000034ccc59852 in QThreadPrivate::start (arg=0x7f8c40446430) at thread/qthread_unix.cpp:185
#5  0x00000034c1c073da in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00000034c10e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

Thread 1 (Thread 0x7f8c58e75840 (LWP 31797)):
[KCrash Handler]
#5  QBasicAtomicInt::ref () at ../../src/corelib/arch/qatomic_x86_64.h:117
#6  QByteArray () at ../../src/corelib/tools/qbytearray.h:401
#7  QBitArray () at ../../src/corelib/tools/qbitarray.h:60
#8  v_construct<QBitArray> () at ../../src/corelib/kernel/qvariant_p.h:100
#9  construct (x=0x7fff60eba3e0, copy=0x7f8c404d2020) at kernel/qvariant.cpp:124
#10 0x00000034d0bbecf8 in construct (x=0x7fff60eba3e0, copy=0x7f8c404d2020) at kernel/qguivariant.cpp:148
#11 0x00007f8c4524c597 in SolidDeviceEngine::populateDeviceData (this=0x7f8c404376a0, name=@0x7f8c40455ec0)
    at /usr/src/debug/kdebase-workspace-4.1.4/plasma/dataengines/soliddevice/soliddeviceengine.cpp:271
#12 0x00007f8c4524ffd9 in SolidDeviceEngine::sourceRequestEvent (this=0x7f8c404376a0, name=@0x7f8c40455ec0)
    at /usr/src/debug/kdebase-workspace-4.1.4/plasma/dataengines/soliddevice/soliddeviceengine.cpp:102
#13 0x000000398fec8e1d in Plasma::DataEnginePrivate::requestSource (this=0x7f8c40455a60, sourceName=@0x7f8c40455ec0, newSource=0x7fff60ebb667)
    at /usr/src/debug/kdebase-workspace-4.1.4/libs/plasma/dataengine.cpp:569
#14 0x000000398fec8e91 in Plasma::DataEngine::connectSource (this=0x7f8c404376a0, source=@0x80, visualization=0x7f8c40405640, pollingInterval=128, intervalAlignment=1079055552)
    at /usr/src/debug/kdebase-workspace-4.1.4/libs/plasma/dataengine.cpp:79
#15 0x00007f8c465ed42e in DeviceNotifier::onSourceAdded (this=0x7f8c40405640, name=@0x7f8c40455ec0) at /usr/src/debug/kdebase-workspace-4.1.4/plasma/applets/devicenotifier/devicenotifier.cpp:318
#16 0x00007f8c465efe24 in DeviceNotifier::qt_metacall (this=0x7f8c40405640, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff60ebb930)
    at /usr/src/debug/kdebase-workspace-4.1.4/x86_64-redhat-linux-gnu/plasma/applets/devicenotifier/devicenotifier.moc:85
#17 0x00000034ccd56764 in QMetaObject::activate (sender=0x7f8c4043a940, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x80) at kernel/qobject.cpp:3031
#18 0x000000398fec7d42 in Plasma::DataEngine::sourceAdded (this=0x7fff60eba3e0, _t1=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.1.4/x86_64-redhat-linux-gnu/libs/plasma/dataengine.moc:161
#19 0x000000398fec91c2 in Plasma::DataEngine::setData (this=0x7f8c4043a940, source=@0x7f8c40455ec0, key=@0x7fff60ebbb40, value=@0x7fff60ebba30)
    at /usr/src/debug/kdebase-workspace-4.1.4/libs/plasma/dataengine.cpp:172
#20 0x00007f8c4545c280 in HotplugEngine::onDeviceAdded (this=0x7f8c4043a940, udi=@0x7f8c40455ec0) at /usr/src/debug/kdebase-workspace-4.1.4/plasma/dataengines/hotplug/hotplugengine.cpp:80
#21 0x00007f8c4545c79c in HotplugEngine::qt_metacall (this=0x7f8c4043a940, _c=QMetaObject::InvokeMetaMethod, _id=32, _a=0x7fff60ebbcf0)
    at /usr/src/debug/kdebase-workspace-4.1.4/x86_64-redhat-linux-gnu/plasma/dataengines/hotplug/hotplugengine.moc:69
#22 0x00000034ccd56764 in QMetaObject::activate (sender=0x7f8c4043ff80, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x80) at kernel/qobject.cpp:3031
#23 0x000000398e226022 in Solid::DeviceNotifier::deviceAdded (this=0x7fff60eba3e0, _t1=<value optimized out>) at /usr/src/debug/kdelibs-4.1.4/x86_64-redhat-linux-gnu/solid/solid/devicenotifier.moc:79
#24 0x000000398e22804e in Solid::DeviceManagerPrivate::_k_deviceAdded (this=0x7f8c4043ff80, udi=@0x7f8c40455ec0) at /usr/src/debug/kdelibs-4.1.4/solid/solid/devicemanager.cpp:169
#25 0x000000398e228277 in Solid::DeviceManagerPrivate::qt_metacall (this=0x7f8c4043ff80, _c=QMetaObject::InvokeMetaMethod, _id=32, _a=0x7fff60ebbed0)
    at /usr/src/debug/kdelibs-4.1.4/x86_64-redhat-linux-gnu/solid/solid/devicemanager_p.moc:72
#26 0x00000034ccd56764 in QMetaObject::activate (sender=0x7f8c459f2e60, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x80) at kernel/qobject.cpp:3031
#27 0x000000398e2371e2 in Solid::Ifaces::DeviceManager::deviceAdded (this=0x7fff60eba3e0, _t1=<value optimized out>)
    at /usr/src/debug/kdelibs-4.1.4/x86_64-redhat-linux-gnu/solid/solid/ifaces/devicemanager.moc:79
#28 0x000000398e258f3c in Solid::Backends::Hal::HalManager::qt_metacall (this=0x7f8c459f2e60, _c=QMetaObject::InvokeMetaMethod, _id=32, _a=0x7fff60ebc1b0)
    at /usr/src/debug/kdelibs-4.1.4/x86_64-redhat-linux-gnu/solid/solid/backends/hal/halmanager.moc:70
#29 0x00000034cc422143 in QDBusConnectionPrivate::deliverCall (this=0x7f8c4043d030, object=0x7f8c459f2e60, msg=@0x7f8c4046c1f8, metaTypes=@0x7f8c4046c200, slotIdx=6) at qdbusintegrator.cpp:849
#30 0x00000034cc42934f in QDBusCallDeliveryEvent::placeMetaCall (this=0x20, object=0x80) at qdbusintegrator_p.h:130
#31 0x00000034ccd513d5 in QObject::event (this=0x7f8c459f2e60, e=0x7f8c4046c1b0) at kernel/qobject.cpp:1155
#32 0x00000034d0b828dd in QApplicationPrivate::notify_helper (this=0x19dee00, receiver=0x7f8c459f2e60, e=0x7f8c4046c1b0) at kernel/qapplication.cpp:3803
#33 0x00000034d0b8a68a in QApplication::notify (this=0x19d2710, receiver=0x7f8c459f2e60, e=0x7f8c4046c1b0) at kernel/qapplication.cpp:3768
#34 0x000000398d7fb60b in KApplication::notify (this=0x19d2710, receiver=0x7f8c459f2e60, event=0x7f8c4046c1b0) at /usr/src/debug/kdelibs-4.1.4/kdeui/kernel/kapplication.cpp:311
#35 0x00000034ccd42391 in QCoreApplication::notifyInternal (this=0x19d2710, receiver=0x7f8c459f2e60, event=0x7f8c4046c1b0) at kernel/qcoreapplication.cpp:587
#36 0x00000034ccd4302a in QCoreApplication::sendEvent () at ../../src/corelib/kernel/qcoreapplication.h:209
#37 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x19a6b00) at kernel/qcoreapplication.cpp:1198
#38 0x00000034ccd6ab13 in QCoreApplication::sendPostedEvents () at ../../src/corelib/kernel/qcoreapplication.h:214
#39 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:205
#40 0x00000034c283779b in g_main_dispatch () at gmain.c:2144
#41 IA__g_main_context_dispatch (context=0x19e2220) at gmain.c:2697
#42 0x00000034c283af6d in g_main_context_iterate (context=0x19e2220, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2778
#43 0x00000034c283b12b in IA__g_main_context_iteration (context=0x19e2220, may_block=1) at gmain.c:2841
#44 0x00000034ccd6a79f in QEventDispatcherGlib::processEvents (this=0x19dfb40, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:319
#45 0x00000034d0c1328f in QGuiEventDispatcherGlib::processEvents (this=0x7fff60eba3e0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:198
#46 0x00000034ccd40cb2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:143
#47 0x00000034ccd40e3d in QEventLoop::exec (this=0x7fff60ebcb40, flags=) at kernel/qeventloop.cpp:194
#48 0x00000034ccd432ed in QCoreApplication::exec () at kernel/qcoreapplication.cpp:845
#49 0x000000398e619943 in kdemain (argc=1, argv=0x7fff60ebceb8) at /usr/src/debug/kdebase-workspace-4.1.4/plasma/plasma/main.cpp:58
#50 0x00000034c101e576 in __libc_start_main (main=0x400910 <main>, argc=1, ubp_av=0x7fff60ebceb8, init=0x400940 <__libc_csu_init>, fini=<value optimized out>, rtld_fini=<value optimized out>, 
    stack_end=0x7fff60ebcea8) at libc-start.c:220
#51 0x0000000000400849 in _start ()
Current language:  auto; currently c