Application: plasma-desktop (0.3)
KDE Platform Version: 4.5.00 (KDE 4.5.0)
Qt Version: 4.7.0
Operating System: Linux 2.6.32-24-generic x86_64
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
- Unusual behavior I noticed:
When I clicked the show hidden icons, it opened and closed in a second, and created a weird empty, titleless and focused small window for that same amount of time. 
I kept clicking it, and once the window didn't automatically close, if I were to close it then it would crash plasma. The window is resizeable and has the common toolbars of a regular window but has no contents nor title.

- Custom settings of the application:
The system tray had under a dozen application icons, most of them hidden, some text overlap was observable, and I want to blame skype but haven't been able to reproduce it with skype alone. The applications that I can remember were kopete, tomboy, gnome's mail notification, keepassx, and all the default system tray icons that come with kde 4.5. Maybe the weather one too, unconfigured.

Again I haven't been able to reproduce, so it may be nothing to worry about.

-- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7eff44b16780 (LWP 4464))]

Thread 6 (Thread 0x7eff334ef710 (LWP 4468)):
#0  *__GI_clock_gettime (clock_id=1, tp=0x7eff334eeac0) at ../sysdeps/unix/clock_gettime.c:135
#1  0x00007eff50e08fff in do_gettime () at tools/qelapsedtimer_unix.cpp:105
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:119
#3  0x00007eff50ed4bbd in QTimerInfoList::updateCurrentTime (this=0x7eff334eeac0) at kernel/qeventdispatcher_unix.cpp:339
#4  0x00007eff50ed4be5 in QTimerInfoList::timerWait (this=0x7eff334eeac0, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x00007eff50ed2dcd in timerSourcePrepareHelper (src=<value optimized out>, timeout=0x7eff334eebfc) at kernel/qeventdispatcher_glib.cpp:136
#6  0x00007eff50ed2e75 in timerSourcePrepare (source=0x7eff334eeac0, timeout=0x7eff334eeac0) at kernel/qeventdispatcher_glib.cpp:169
#7  0x00007eff486caeb1 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#8  0x00007eff486cb318 in ?? () from /lib/libglib-2.0.so.0
#9  0x00007eff486cb8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#10 0x00007eff50ed2bd6 in QEventDispatcherGlib::processEvents (this=0x1403a10, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#11 0x00007eff50ea57b2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#12 0x00007eff50ea5b9c in QEventLoop::exec (this=0x7eff334eed90, flags=) at kernel/qeventloop.cpp:201
#13 0x00007eff50db123d in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#14 0x00007eff50e856d8 in QInotifyFileSystemWatcherEngine::run (this=0x1005ae0) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x00007eff50db41be in QThreadPrivate::start (arg=0x1005ae0) at thread/qthread_unix.cpp:266
#16 0x00007eff50b229ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#17 0x00007eff5385b72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#18 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7eff2b796710 (LWP 4887)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007eff50db4d7b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1a7ac70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1a7ac70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007eff4d681d84 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1a412b0, th=0x26d2d80) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007eff4d684f8b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1a5f2d0, th=0x26d2d80) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007eff4d6834ff in ThreadWeaver::ThreadRunHelper::run (this=0x7eff2b795de0, parent=0x1a412b0, th=0x26d2d80) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007eff4d683a58 in ThreadWeaver::Thread::run (this=0x26d2d80) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007eff50db41be in QThreadPrivate::start (arg=0x26d2d80) at thread/qthread_unix.cpp:266
#8  0x00007eff50b229ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007eff5385b72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7eff2bf97710 (LWP 4888)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007eff50db4d7b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1a7ac70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1a7ac70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007eff4d681d84 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1a412b0, th=0x2538b50) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007eff4d684f8b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1a5f2d0, th=0x2538b50) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007eff4d6834ff in ThreadWeaver::ThreadRunHelper::run (this=0x7eff2bf96de0, parent=0x1a412b0, th=0x2538b50) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007eff4d683a58 in ThreadWeaver::Thread::run (this=0x2538b50) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007eff50db41be in QThreadPrivate::start (arg=0x2538b50) at thread/qthread_unix.cpp:266
#8  0x00007eff50b229ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007eff5385b72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7eff2fc18710 (LWP 4889)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007eff50db4d7b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1a7ac70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1a7ac70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007eff4d681d84 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1a412b0, th=0x25c45c0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007eff4d684f8b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1a5f2d0, th=0x25c45c0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007eff4d6834ff in ThreadWeaver::ThreadRunHelper::run (this=0x7eff2fc17de0, parent=0x1a412b0, th=0x25c45c0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007eff4d683a58 in ThreadWeaver::Thread::run (this=0x25c45c0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007eff50db41be in QThreadPrivate::start (arg=0x25c45c0) at thread/qthread_unix.cpp:266
#8  0x00007eff50b229ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007eff5385b72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7eff28dbe710 (LWP 4890)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007eff50db4d7b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1a7ac70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1a7ac70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007eff4d681d84 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1a412b0, th=0x274be90) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007eff4d684f8b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1a5f2d0, th=0x274be90) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007eff4d6834ff in ThreadWeaver::ThreadRunHelper::run (this=0x7eff28dbdde0, parent=0x1a412b0, th=0x274be90) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007eff4d683a58 in ThreadWeaver::Thread::run (this=0x274be90) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007eff50db41be in QThreadPrivate::start (arg=0x274be90) at thread/qthread_unix.cpp:266
#8  0x00007eff50b229ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007eff5385b72d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7eff44b16780 (LWP 4464)):
[KCrash Handler]
#6  QBasicAtomicInt::deref (this=0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h:133
#7  QLibraryPrivate::release (this=0x0) at plugin/qlibrary.cpp:506
#8  0x00007eff50e8d735 in ~QFactoryLoaderPrivate (this=0xc67090, __in_chrg=<value optimized out>) at plugin/qfactoryloader.cpp:83
#9  0x00007eff50ec00ec in QScopedPointerDeleter<QObjectData>::cleanup (this=<value optimized out>, __in_chrg=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:62
#10 ~QScopedPointer (this=<value optimized out>, __in_chrg=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:100
#11 ~QObject (this=<value optimized out>, __in_chrg=<value optimized out>) at kernel/qobject.cpp:963
#12 0x00007eff50e8ca6f in ~QFactoryLoader (this=0xc611f0, __in_chrg=<value optimized out>) at plugin/qfactoryloader.cpp:209
#13 0x00007eff500b2ef5 in ~QGlobalStaticDeleter (this=0x7eff50b1b118, __in_chrg=<value optimized out>) at ../../include/QtCore/../../src/corelib/global/qglobal.h:1815
#14 0x00007eff537ae262 in __run_exit_handlers (status=1) at exit.c:78
#15 *__GI_exit (status=1) at exit.c:100
#16 0x00007eff500717a8 in qt_xio_errhandler () at kernel/qapplication_x11.cpp:745
#17 0x00007eff51b5c7c8 in KApplication::xioErrhandler (this=0xbeb3f0, dpy=0xbff8b0) at ../../kdeui/kernel/kapplication.cpp:416
#18 0x00007eff523d77fe in _XIOError (dpy=0xbff8b0) at ../../src/XlibInt.c:3138
#19 0x00007eff523df355 in process_responses (dpy=0xbff8b0, wait_for_first_event=<value optimized out>, current_error=<value optimized out>, current_request=0) at ../../src/xcb_io.c:247
#20 0x00007eff523dfc07 in _XEventsQueued (dpy=0xbff8b0, mode=<value optimized out>) at ../../src/xcb_io.c:263
#21 0x00007eff523c840b in XEventsQueued (dpy=0xbff8b0, mode=2) at ../../src/Pending.c:44
#22 0x00007eff500ac9ac in x11EventSourceCheck (s=0xbfe110) at kernel/qguieventdispatcher_glib.cpp:87
#23 0x00007eff486cab0a in g_main_context_check () from /lib/libglib-2.0.so.0
#24 0x00007eff486cb4c3 in ?? () from /lib/libglib-2.0.so.0
#25 0x00007eff486cb8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#26 0x00007eff50ed2b83 in QEventDispatcherGlib::processEvents (this=0xbcf790, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#27 0x00007eff500ac7ee in QGuiEventDispatcherGlib::processEvents (this=0xbee890, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x00007eff50ea57b2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#29 0x00007eff50ea5b9c in QEventLoop::exec (this=0x7fff6ddc60a0, flags=) at kernel/qeventloop.cpp:201
#30 0x00007eff50ea9c4b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#31 0x00007eff53b34d06 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:118
#32 0x00007eff53793c4d 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=0x7fff6ddc6468) at libc-start.c:226
#33 0x00000000004006c9 in _start ()

Reported using DrKonqi