Thread 1 "darkradiant" received signal SIGSEGV, Segmentation fault.
0x00007ffff2db79f3 in undo::UndoSystem::undo() () from /archive/mircea/Games/Quake/TheDarkMod/DarkRadiant_GIT/build/install/bin/../lib/darkradiant/modules/libradiantcore.so                                                                          
(gdb) bt
#0  0x00007ffff2db79f3 in undo::UndoSystem::undo() ()
    at /archive/mircea/Games/Quake/TheDarkMod/DarkRadiant_GIT/build/install/bin/../lib/darkradiant/modules/libradiantcore.so                                                                                                                          
#1  0x00007ffff29f50f5 in cmd::CommandSystem::executeCommand(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<cmd::Argument, std::allocator<cmd::Argument> > const&) ()
    at /archive/mircea/Games/Quake/TheDarkMod/DarkRadiant_GIT/build/install/bin/../lib/darkradiant/modules/libradiantcore.so                                                                                                                          
#2  0x00007ffff29f93c8 in cmd::CommandSystem::execute(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) ()
    at /archive/mircea/Games/Quake/TheDarkMod/DarkRadiant_GIT/build/install/bin/../lib/darkradiant/modules/libradiantcore.so                                                                                                                          
#3  0x00005555556e7a09 in ui::EventManager::handleKeyEvent(wxKeyEvent&) ()
#4  0x0000555555706176 in ui::GlobalKeyEventFilter::FilterEvent(wxEvent&) ()
#5  0x00007ffff7a11345 in wxEvtHandler::ProcessEvent(wxEvent&) () at /usr/lib/libwx_baseu-3.0.so.0
#6  0x00007ffff7a110d7 in wxEvtHandler::SafelyProcessEvent(wxEvent&) () at /usr/lib/libwx_baseu-3.0.so.0
#7  0x00007ffff746deec in  () at /usr/lib/libwx_gtk2u_core-3.0.so.0
#8  0x00007ffff5d9e0a8 in  () at /usr/lib/libgtk-x11-2.0.so.0
#9  0x00007ffff599bddf in g_closure_invoke () at /usr/lib/libgobject-2.0.so.0
#10 0x00007ffff59c4fbd in  () at /usr/lib/libgobject-2.0.so.0
#11 0x00007ffff59b82db in g_signal_emit_valist () at /usr/lib/libgobject-2.0.so.0
#12 0x00007ffff59b9210 in g_signal_emit () at /usr/lib/libgobject-2.0.so.0
#13 0x00007ffff5ec3275 in  () at /usr/lib/libgtk-x11-2.0.so.0
#14 0x00007ffff5ed7c6a in gtk_window_propagate_key_event () at /usr/lib/libgtk-x11-2.0.so.0
--Type <RET> for more, q to quit, c to continue without paging--c
#15 0x00007ffff745cbcc in  () at /usr/lib/libwx_gtk2u_core-3.0.so.0
#16 0x00007ffff5d9e0a8 in  () at /usr/lib/libgtk-x11-2.0.so.0
#17 0x00007ffff599bddf in g_closure_invoke () at /usr/lib/libgobject-2.0.so.0
#18 0x00007ffff59c4fbd in  () at /usr/lib/libgobject-2.0.so.0
#19 0x00007ffff59b82db in g_signal_emit_valist () at /usr/lib/libgobject-2.0.so.0
#20 0x00007ffff59b9210 in g_signal_emit () at /usr/lib/libgobject-2.0.so.0
#21 0x00007ffff5ec3275 in  () at /usr/lib/libgtk-x11-2.0.so.0
#22 0x00007ffff5d9c77e in gtk_propagate_event () at /usr/lib/libgtk-x11-2.0.so.0
#23 0x00007ffff5d9cb4b in gtk_main_do_event () at /usr/lib/libgtk-x11-2.0.so.0
#24 0x00007ffff5c0b3be in  () at /usr/lib/libgdk-x11-2.0.so.0
#25 0x00007ffff7d2502c in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#26 0x00007ffff7d78b59 in  () at /usr/lib/libglib-2.0.so.0
#27 0x00007ffff7d24593 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#28 0x00007ffff5d9b9fe in gtk_main () at /usr/lib/libgtk-x11-2.0.so.0
#29 0x00007ffff7448876 in wxGUIEventLoop::DoRun() () at /usr/lib/libwx_gtk2u_core-3.0.so.0
#30 0x00007ffff78e937e in wxEventLoopBase::Run() () at /usr/lib/libwx_baseu-3.0.so.0
#31 0x00007ffff78af766 in wxAppConsoleBase::MainLoop() () at /usr/lib/libwx_baseu-3.0.so.0
#32 0x00007ffff792e199 in wxEntry(int&, wchar_t**) () at /usr/lib/libwx_baseu-3.0.so.0
#33 0x000055555569baae in main ()