I tried watching a video on youtube and as soon as it loaded the KDE crash handler popped up. I copied what the backtrace that came up and here is the link to the video http://www.youtube.com/watch?v=M2GqRTgi5WI and this happens with any flash video I try to play not when trying to watch videos on youtube.
Application: nspluginviewer (nspluginviewer), signal SIGSEGV
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[Thread debugging using libthread_db enabled]
[New Thread 0xb6105940 (LWP 14850)]
[New Thread 0xb22b3b90 (LWP 14859)]
[New Thread 0xb2ab4b90 (LWP 14858)]
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[KCrash handler]
#6 0xb17dc724 in QMutexPool::get () from /usr/lib/libqt-mt.so.3
#7 0xb14e86ba in QMetaObjectCleanUp::QMetaObjectCleanUp ()
from /usr/lib/libqt-mt.so.3
#8 0xb188e679 in ?? () from /usr/lib/libqt-mt.so.3
#9 0xb188eadd in ?? () from /usr/lib/libqt-mt.so.3
#10 0xb13f6b6c in _init () from /usr/lib/libqt-mt.so.3
#11 0xb7f71ab4 in ?? () from /lib/ld-linux.so.2
#12 0xb7f71be4 in ?? () from /lib/ld-linux.so.2
#13 0xb7f75b0b in ?? () from /lib/ld-linux.so.2
#14 0xb7f716e6 in ?? () from /lib/ld-linux.so.2
#15 0xb7f752be in ?? () from /lib/ld-linux.so.2
#16 0xb742dbec in ?? () from /lib/tls/i686/cmov/libdl.so.2
#17 0xb7f716e6 in ?? () from /lib/ld-linux.so.2
#18 0xb742e01c in ?? () from /lib/tls/i686/cmov/libdl.so.2
#19 0xb742db21 in dlopen () from /lib/tls/i686/cmov/libdl.so.2
#20 0xb3c0e737 in g_module_open () from /usr/lib/libgmodule-2.0.so.0
#21 0xb3f865ee in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#22 0xb3c3f830 in g_type_module_use () from /usr/lib/libgobject-2.0.so.0
#23 0xb3f8643a in gtk_theme_engine_get () from /usr/lib/libgtk-x11-2.0.so.0
#24 0xb3f04605 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#25 0xb3f051a8 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#26 0xb3f057b7 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#27 0xb3f0596c in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#28 0xb3f054fa in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#29 0xb3f057b7 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#30 0xb3f0596c in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#31 0xb3f05d87 in gtk_rc_reparse_all_for_settings ()
from /usr/lib/libgtk-x11-2.0.so.0
#32 0xb3f250c8 in gtk_settings_get_for_screen ()
from /usr/lib/libgtk-x11-2.0.so.0
#33 0xb3f25225 in gtk_settings_get_default () from /usr/lib/libgtk-x11-2.0.so.0
#34 0xb3f40c8c in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#35 0xb3c3e873 in g_type_create_instance () from /usr/lib/libgobject-2.0.so.0
#36 0xb3c22795 in ?? () from /usr/lib/libgobject-2.0.so.0
#37 0xb3c23006 in g_object_newv () from /usr/lib/libgobject-2.0.so.0
#38 0xb3c23c17 in g_object_new_valist () from /usr/lib/libgobject-2.0.so.0
#39 0xb3c23d8e in g_object_new () from /usr/lib/libgobject-2.0.so.0
#40 0xb3f388e7 in gtk_style_new () from /usr/lib/libgtk-x11-2.0.so.0
#41 0xb3fe08cd in gtk_widget_get_default_style ()
from /usr/lib/libgtk-x11-2.0.so.0
#42 0xb3feb7fb in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#43 0xb3c3e632 in g_type_create_instance () from /usr/lib/libgobject-2.0.so.0
#44 0xb3c22795 in ?? () from /usr/lib/libgobject-2.0.so.0
#45 0xb3c23006 in g_object_newv () from /usr/lib/libgobject-2.0.so.0
#46 0xb3c23c17 in g_object_new_valist () from /usr/lib/libgobject-2.0.so.0
#47 0xb3c23d8e in g_object_new () from /usr/lib/libgobject-2.0.so.0
#48 0xb3ee74ac in gtk_plug_new_for_display () from /usr/lib/libgtk-x11-2.0.so.0
#49 0xb3ee7506 in gtk_plug_new () from /usr/lib/libgtk-x11-2.0.so.0
#50 0xb4213fcf in ?? ()
from /usr/lib/firefox/plugins/flashplugin-alternative.so
#51 0xb420a201 in ?? ()
from /usr/lib/firefox/plugins/flashplugin-alternative.so
#52 0xb420ea94 in Private_SetWindow ()
from /usr/lib/firefox/plugins/flashplugin-alternative.so
#53 0x08050268 in ?? ()
#54 0x0805e0bc in ?? ()
#55 0x0805d480 in ?? ()
#56 0x0805651a in ?? ()
#57 0x0805e7d4 in ?? ()
#58 0xb745219e in ?? () from /usr/lib/libQtDBus.so.4
#59 0xb74533d7 in ?? () from /usr/lib/libQtDBus.so.4
#60 0xb74538e1 in ?? () from /usr/lib/libQtDBus.so.4
#61 0xb7453e4a in ?? () from /usr/lib/libQtDBus.so.4
#62 0xb7684d29 in QObject::event () from /usr/lib/libQtCore.so.4
#63 0xb6ac87bc in QApplicationPrivate::notify_helper ()
from /usr/lib/libQtGui.so.4
#64 0xb6ad058e in QApplication::notify () from /usr/lib/libQtGui.so.4
#65 0xb7b4a1ad in KApplication::notify () from /usr/lib/libkdeui.so.5
#66 0xb76753a1 in QCoreApplication::notifyInternal ()
from /usr/lib/libQtCore.so.4
#67 0xb7676015 in QCoreApplicationPrivate::sendPostedEvents ()
from /usr/lib/libQtCore.so.4
#68 0xb767622d in QCoreApplication::sendPostedEvents ()
from /usr/lib/libQtCore.so.4
#69 0xb769fe6f in ?? () from /usr/lib/libQtCore.so.4
#70 0xb73af5e8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#71 0xb73b2c93 in ?? () from /usr/lib/libglib-2.0.so.0
#72 0xb73b2e51 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#73 0xb769fab8 in QEventDispatcherGlib::processEvents ()
from /usr/lib/libQtCore.so.4
#74 0xb6b62595 in ?? () from /usr/lib/libQtGui.so.4
#75 0xb7673a8a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#76 0xb7673c4a in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#77 0xb76762f5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#78 0xb6ac8637 in QApplication::exec () from /usr/lib/libQtGui.so.4
#79 0x0805c590 in ?? ()
#80 0xb6759685 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#81 0x0804e571 in _start ()
#0 0xb7f63424 in __kernel_vsyscall ()
Forgot to add somethings to bug report and I changed it from kdebase-kde4 to kde-base
4:4.0.83-0ubuntu2
Description: Ubuntu intrepid (development branch)
Release: 8.10