. Thread 2 (process 3976): #0 0xb7f01430 in __kernel_vsyscall () #1 0xb640f741 in select () from /lib/tls/i686/cmov/libc.so.6 #2 0xb6827330 in ?? () from /usr/lib/libQtCore.so.4 #3 0xb675774e in ?? () from /usr/lib/libQtCore.so.4 #4 0xb57bb4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #5 0xb64173fe in clone () from /lib/tls/i686/cmov/libc.so.6 . Thread 1 (process 3975): #0 0x00000024 in ?? () #1 0xa9afc8e6 in HalPower::slotDeviceRemoved () from /usr/lib/kde4/solid_hal_power.so #2 0xa9b0192d in HalPower::qt_metacall () from /usr/lib/kde4/solid_hal_power.so #3 0xb685cc40 in QMetaObject::activate () from /usr/lib/libQtCore.so.4 #4 0xb685d9c2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4 #5 0xb6bd47b3 in Solid::DeviceNotifier::deviceRemoved () from /usr/lib/libsolid.so.4 #6 0xb6bd669f in ?? () from /usr/lib/libsolid.so.4 #7 0xb6bd6aed in ?? () from /usr/lib/libsolid.so.4 #8 0xb685cc40 in QMetaObject::activate () from /usr/lib/libQtCore.so.4 #9 0xb685d9c2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4 #10 0xb6be82f3 in ?? () from /usr/lib/libsolid.so.4 #11 0xb6c0cd22 in ?? () from /usr/lib/libsolid.so.4 #12 0xb6c0d144 in ?? () from /usr/lib/libsolid.so.4 #13 0xb695026e in ?? () from /usr/lib/libQtDBus.so.4 #14 0xb6957627 in ?? () from /usr/lib/libQtDBus.so.4 #15 0xb6857951 in QObject::event () from /usr/lib/libQtCore.so.4 #16 0xb6d8484c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4 #17 0xb6d8c6ce in QApplication::notify () from /usr/lib/libQtGui.so.4 #18 0xb789e00d in KApplication::notify () from /usr/lib/libkdeui.so.5 #19 0xb6848021 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4 #20 0xb6848ca5 in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4 #21 0xb6848e9d in QCoreApplication::sendPostedEvents () from /usr/lib/libQtCore.so.4 #22 0xb6872a0f in ?? () from /usr/lib/libQtCore.so.4 #23 0xb56f7c38 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #24 0xb56fb2e3 in ?? () from /usr/lib/libglib-2.0.so.0 #25 0xb56fb4a1 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #26 0xb6872658 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4 #27 0xb6e1ee95 in ?? () from /usr/lib/libQtGui.so.4 #28 0xb68466ea in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4 #29 0xb68468aa in QEventLoop::exec () from /usr/lib/libQtCore.so.4 #30 0xb6848f65 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4 #31 0xb6d846c7 in QApplication::exec () from /usr/lib/libQtGui.so.4 #32 0xb7ec973f in kdemain () from /usr/lib/libkdeinit4_ksmserver.so #33 0x08048712 in _start ()