Application: kmix (3.7)
KDE Platform Version: 4.5.3 (KDE 4.5.3) (Compiled from sources)
Qt Version: 4.7.0
Operating System: Linux 2.6.39.4 x86_64
Distribution: Ubuntu 10.04.3 LTS

-- Information about the crash:
starting bleachbit application with all Settings on, ending in a plasma crash at he end.

-- Backtrace:
Application: KMix (kmix), signal: Bus error
[KCrash Handler]
#6  pthread_mutex_timedlock (mutex=0x7f64c67a2008, abstime=0x7fff66a9abf0) at pthread_mutex_timedlock.c:40
#7  0x00007f64de26c973 in SharedMemory::lock (this=<value optimized out>) at ../../kdecore/util/kshareddatacache.cpp:797
#8  SharedMemory::clear (this=<value optimized out>) at ../../kdecore/util/kshareddatacache.cpp:813
#9  KSharedDataCache::clear (this=<value optimized out>) at ../../kdecore/util/kshareddatacache.cpp:1401
#10 0x00007f64dfd00bc3 in Plasma::ThemePrivate::discardCache (this=0x24c9f10, oldThemeName=..., keepSvgElementsCache=false) at ../../plasma/theme.cpp:242
#11 0x00007f64dfd01137 in Plasma::ThemePrivate::compositingChanged (this=0x24c9f10) at ../../plasma/theme.cpp:232
#12 0x00007f64dfd0790c in Plasma::Theme::qt_metacall (this=0x24c9e50, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff66a9ae20) at ./theme.moc:116
#13 0x00007f64dda8bda7 in QMetaObject::activate (sender=0x24cc4f0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3280
#14 0x00007f64e02f700d in KSelectionWatcher::Private::x11Event (this=<value optimized out>, ev_P=0x7fff66a9abf0) at ../../kdeui/util/kmanagerselection.cpp:395
#15 0x00007f64e027a41e in KAppX11HackWidget::publicx11Event (this=<value optimized out>, _event=0x7fff66a9b4f0) at ../../kdeui/kernel/kapplication.cpp:915
#16 KApplication::x11EventFilter (this=<value optimized out>, _event=0x7fff66a9b4f0) at ../../kdeui/kernel/kapplication.cpp:966
#17 0x00007f64de7379f1 in qt_x11EventFilter (ev=0x7fff66a9b4f0) at kernel/qapplication_x11.cpp:408
#18 0x00007f64de747671 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff66a9b4f0) at kernel/qapplication_x11.cpp:3248
#19 0x00007f64de774012 in x11EventSourceDispatch (s=0x23c4e00, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#20 0x00007f64d77fe8c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#21 0x00007f64d7802748 in ?? () from /lib/libglib-2.0.so.0
#22 0x00007f64d78028fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#23 0x00007f64ddaa0183 in QEventDispatcherGlib::processEvents (this=0x2399730, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#24 0x00007f64de77397e in QGuiEventDispatcherGlib::processEvents (this=0x7f64c67a2008, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007f64dda72dd2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#26 0x00007f64dda731bc in QEventLoop::exec (this=0x7fff66a9b820, flags=) at kernel/qeventloop.cpp:201
#27 0x00007f64dda7726b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#28 0x00007f64e0f4eb5a in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_kmix.so
#29 0x00007f64e0bc5c4d 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=0x7fff66a9bd98) at libc-start.c:226
#30 0x00000000004006b9 in _start ()

Reported using DrKonqi