Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xb563fb00 (LWP 8093)] 0x080710bd in QString (this=0xbf850bc4, other=@0x10) at /usr/include/qt4/QtCore/qstring.h:670 670 /usr/include/qt4/QtCore/qstring.h: No such file or directory. in /usr/include/qt4/QtCore/qstring.h (gdb) thread apply all bt Thread 4 (Thread 0xb3249b90 (LWP 8100)): #0 0xb7f50430 in __kernel_vsyscall () #1 0xb5b64167 in poll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb59fec32 in ?? () from /usr/lib/libglib-2.0.so.0 #3 0xb59fef61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #4 0xb7e62478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4 #5 0xb7e3652a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4 #6 0xb7e366ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4 #7 0xb7d44419 in QThread::exec () from /usr/lib/libQtCore.so.4 #8 0x0816eeb5 in SessionThread::run (this=0x9d0f060) at /build/buildd/quassel-0.4.0/src/core/sessionthread.cpp:104 #9 0xb7d476ae in ?? () from /usr/lib/libQtCore.so.4 #10 0xb59af50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #11 0xb5b6ea0e in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 1 (Thread 0xb563fb00 (LWP 8093)): #0 0x080710bd in QString (this=0xbf850bc4, other=@0x10) at /usr/include/qt4/QtCore/qstring.h:670 #1 0x080bfe33 in IdentitiesSettingsPage::on_renameIdentity_clicked (this=0x9efb568) at /build/buildd/quassel-0.4.0/src/qtui/settingspages/identitiessettingspage.cpp:316 #2 0x080e1beb in IdentitiesSettingsPage::qt_metacall (this=0x9efb568, _c=QMetaObject::InvokeMetaMethod, _id=-1081799740, _a=0xbf850cec) at /build/buildd/quassel-0.4.0/obj-i486-linux-gnu/src/qtui/moc_identitiessettingspage.cxx:94 #3 0xb7e4ca60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4 #4 0xb7e4ce60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4 #5 0xb7aa7e61 in QAbstractButton::clicked () from /usr/lib/libQtGui.so.4 ---Type to continue, or q to quit--- #6 0xb77fb199 in ?? () from /usr/lib/libQtGui.so.4 #7 0xb77fcd94 in ?? () from /usr/lib/libQtGui.so.4 #8 0xb77fd026 in QAbstractButton::mouseReleaseEvent () from /usr/lib/libQtGui.so.4 #9 0xb78d9b0c in QToolButton::mouseReleaseEvent () from /usr/lib/libQtGui.so.4 #10 0xb7511962 in QWidget::event () from /usr/lib/libQtGui.so.4 #11 0xb77fb03e in QAbstractButton::event () from /usr/lib/libQtGui.so.4 #12 0xb78d95d4 in QToolButton::event () from /usr/lib/libQtGui.so.4 #13 0xb74b98ec in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4 #14 0xb74c20e1 in QApplication::notify () from /usr/lib/libQtGui.so.4 #15 0xb6451fed in KApplication::notify () from /usr/lib/libkdeui.so.5 #16 0xb7e37e61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4 #17 0xb74c136e in QApplicationPrivate::sendMouseEvent () from /usr/lib/libQtGui.so.4 #18 0xb752b656 in ?? () from /usr/lib/libQtGui.so.4 #19 0xb752a9e5 in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4 #20 0xb75547aa in ?? () from /usr/lib/libQtGui.so.4 #21 0xb59fb6f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #22 0xb59feda3 in ?? () from /usr/lib/libglib-2.0.so.0 #23 0xb59fef61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #24 0xb7e62478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4 #25 0xb7553ea5 in ?? () from /usr/lib/libQtGui.so.4 #26 0xb7e3652a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4 #27 0xb7e366ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4 #28 0xb7e38da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4 #29 0xb74b9767 in QApplication::exec () from /usr/lib/libQtGui.so.4 ---Type to continue, or q to quit--- #30 0x08070f05 in main (argc=Cannot access memory at address 0x10 ) at /build/buildd/quassel-0.4.0/src/common/main.cpp:123 (gdb)