Application that crashed: nspluginviewer
Version of the application: 
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.3
Operating System: Linux 2.6.32-trunk-amd64 x86_64
Distribution: Debian GNU/Linux 5.0.4 (lenny)

What I was doing when the application crashed:
The crash report window suddenly popped up. It is all ideopathic.

 -- Backtrace:
Application: nspluginviewer (nspluginviewer), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f001615e750 (LWP 4713))]

Thread 3 (Thread 0x7efffe0a9910 (LWP 4732)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f00038cbfdc in ?? () from /usr/lib/mozilla/plugins/flash-mozilla.so
#2  0x00007f00039d2f6d in ?? () from /usr/lib/mozilla/plugins/flash-mozilla.so
#3  0x00007f00038cc401 in ?? () from /usr/lib/mozilla/plugins/flash-mozilla.so
#4  0x00007f000f5bb73a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#5  0x00007f0012aee69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7efffe8aa910 (LWP 4733)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f00038cbfdc in ?? () from /usr/lib/mozilla/plugins/flash-mozilla.so
#2  0x00007f00039d2f6d in ?? () from /usr/lib/mozilla/plugins/flash-mozilla.so
#3  0x00007f00038cc401 in ?? () from /usr/lib/mozilla/plugins/flash-mozilla.so
#4  0x00007f000f5bb73a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#5  0x00007f0012aee69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 1 (Thread 0x7f001615e750 (LWP 4713)):
[KCrash Handler]
#5  0x00007f00150abe94 in g_slice_alloc () from /lib/libglib-2.0.so.0
#6  0x00007f00150ac556 in g_slice_alloc0 () from /lib/libglib-2.0.so.0
#7  0x00007f000ecd76db in g_type_create_instance () from /usr/lib/libgobject-2.0.so.0
#8  0x00007f000ecbc65c in ?? () from /usr/lib/libgobject-2.0.so.0
#9  0x00007f000ecbd83f in g_object_newv () from /usr/lib/libgobject-2.0.so.0
#10 0x00007f000ecbe1f5 in g_object_new_valist () from /usr/lib/libgobject-2.0.so.0
#11 0x00007f000ecbe34c in g_object_new () from /usr/lib/libgobject-2.0.so.0
#12 0x00007f000339f0ca in gtk_plug_new_for_display () from /usr/lib/libgtk-x11-2.0.so.0
#13 0x00007f00038c0ad8 in ?? () from /usr/lib/mozilla/plugins/flash-mozilla.so
#14 0x00007f00038b7448 in ?? () from /usr/lib/mozilla/plugins/flash-mozilla.so
#15 0x00007f00038bb5b9 in ?? () from /usr/lib/mozilla/plugins/flash-mozilla.so
#16 0x000000000040a1b5 in NSPluginInstance::NPSetWindow (this=<value optimized out>, window=0x0) at ../../../../apps/nsplugins/viewer/nsplugin.cpp:1031
#17 0x0000000000416dd6 in PluginHost::setupPluginWindow (this=<value optimized out>, plugin=<value optimized out>, winID=<value optimized out>, width=<value optimized out>, 
    height=<value optimized out>) at ../../../../apps/nsplugins/viewer/pluginhost.cpp:54
#18 0x00000000004163dc in PluginHostXEmbed::resizePlugin (this=0x1fb98a0, pluginWinId=<value optimized out>, w=190, h=305) at ../../../../apps/nsplugins/viewer/pluginhost_xembed.cpp:51
#19 0x0000000000409ca0 in NSPluginInstance::resizePlugin (this=0x1fb6c40, clientWinId=77595188, w=190, h=305) at ../../../../apps/nsplugins/viewer/nsplugin.cpp:949
#20 0x00000000004173a9 in InstanceAdaptor::resizePlugin (this=0x1ffb0e0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff1051a820) at instanceadaptor.cpp:57
#21 InstanceAdaptor::qt_metacall (this=0x1ffb0e0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff1051a820) at instanceadaptor.moc:97
#22 0x00007f0015543b83 in QDBusConnectionPrivate::deliverCall (this=0x1e51b10, object=0x1ffb0e0, msg=..., metaTypes=..., slotIdx=7) at qdbusintegrator.cpp:891
#23 0x00007f0015544d2f in QDBusConnectionPrivate::activateCall (this=0x1e51b10, object=0x1ffb0e0, flags=273, msg=...) at qdbusintegrator.cpp:796
#24 0x00007f0015545441 in QDBusConnectionPrivate::activateObject (this=0x1e51b10, node=..., msg=..., pathStartPos=<value optimized out>) at qdbusintegrator.cpp:1347
#25 0x00007f0015545758 in QDBusActivateObjectEvent::placeMetaCall (this=0x2051800) at qdbusintegrator.cpp:1464
#26 0x00007f0013df56c8 in QObject::event (this=0x1fb6c40, e=0x2051800) at kernel/qobject.cpp:1110
#27 0x00007f001325f01d in QApplicationPrivate::notify_helper (this=0x1dde810, receiver=0x1fb6c40, e=0x2051800) at kernel/qapplication.cpp:4065
#28 0x00007f001326707a in QApplication::notify (this=0x7fff1051b740, receiver=0x1fb6c40, e=0x2051800) at kernel/qapplication.cpp:4030
#29 0x00007f001478be06 in KApplication::notify (this=0x7fff1051b740, receiver=0x1fb6c40, event=0x2051800) at ../../kdeui/kernel/kapplication.cpp:302
#30 0x00007f0013de5c9c in QCoreApplication::notifyInternal (this=0x7fff1051b740, receiver=0x1fb6c40, event=0x2051800) at kernel/qcoreapplication.cpp:610
#31 0x00007f0013de68e4 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x1db2230) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#32 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1db2230) at kernel/qcoreapplication.cpp:1247
#33 0x00007f0013e0e7d3 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#34 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#35 0x00007f001508e90e in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#36 0x00007f00150922c8 in ?? () from /lib/libglib-2.0.so.0
#37 0x00007f00150923f0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#38 0x00007f0013e0e39c in QEventDispatcherGlib::processEvents (this=0x1db1e60, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:407
#39 0x00007f00132f5f1f in QGuiEventDispatcherGlib::processEvents (this=0x1fe15a0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#40 0x00007f0013de4562 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#41 0x00007f0013de4934 in QEventLoop::exec (this=0x7fff1051b610, flags=...) at kernel/qeventloop.cpp:201
#42 0x00007f0013de6ba4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#43 0x000000000041534f in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../../apps/nsplugins/viewer/viewer.cpp:144
The current source language is "auto; currently c".

This bug may be a duplicate of or related to bug 216743

Reported using DrKonqi