. Thread 2 (Thread 0x7f322303b700 (LWP 2175)): #0 0x00007f3231fc5b03 in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f322ec1fff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007f322ec20124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f3233b633bf in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #4 0x00007f3233b32c82 in QEventLoop::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #5 0x00007f3233b32ed7 in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #6 0x00007f3233a31fa7 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #7 0x00007f3233b129ff in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #8 0x00007f3233a34fcb in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 No symbol table info available. #9 0x00007f322f4f7e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #10 0x00007f3231fd14bd in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #11 0x0000000000000000 in ?? () No symbol table info available. . Thread 1 (Thread 0x7f32358ac780 (LWP 2174)): #0 0x00007f323531255a in Tp::RequestableChannelClassSpec::textChat() () from /usr/lib/libtelepathy-qt4.so.2 No symbol table info available. #1 0x00007f323511f894 in Tp::CapabilitiesBase::textChats() const () from /usr/lib/libtelepathy-qt4.so.2 No symbol table info available. #2 0x00007f3234bfcf53 in ContactModelItem::data(int) const () from /usr/lib/libktpmodelsprivate.so.0 No symbol table info available. #3 0x00007f3234c00176 in ProxyTreeNode::data(int) const () from /usr/lib/libktpmodelsprivate.so.0 No symbol table info available. #4 0x00007f3234bfdef9 in GroupsModel::data(QModelIndex const&, int) const () from /usr/lib/libktpmodelsprivate.so.0 No symbol table info available. #5 0x00007f3232d13a1c in QSortFilterProxyModel::data(QModelIndex const&, int) const () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 No symbol table info available. #6 0x0000000000426ee4 in _start () No symbol table info available.