Some information about the Booby Bird Trap. It seems to be a bad day for the birds as we are trapping a lot. *Find Lock Problems with Booby Trap* A Booby Trap is used in CinGG for setting a trap to catch lock problems that might have been missed. It will trap boobies only if compile by adding “--with-booby” on the configuration command line. This is the default if you compile using ./bld.sh from the GIT repository. It should not interfere with normal execution. There are 2 potential traps: 1) If you try to unlock a lock when it is not locked; 2) or if you execute a drawing operation without holding the window lock. The trap prints the following in the controlling terminal window: BOOBY! <backtrace> An example backtrace is below along with some hints on how to analyze: - - - - - - - - /home/cin5/bin/./cin(_Z5boobyv+0x3f) [0x557069fa9b2f] /home/cin5/bin/./cin(_ZN13BC_WindowBase9draw_lineEiiiiP9BC_Pixmap+0x3b)0x557069fb9a9b] /home/cin5/bin/./cin(_ZN10BC_ListBox11draw_borderEi+0x73)[0x557069f7dc73] /home/cin5/bin/./cin(+0x9707fb) [0x557069f7e7fb] /home/cin5/bin/./cin(_ZN10BC_ListBox16center_selectionEv+0x4e)[0x557069f7f2ae] /home/cin5/bin/plugins/video/sketcher.plugin(_ZN17SketcherCurveList6updateEi+0x1a0) [0x7f1b8002a4c0] /home/cin5/bin/plugins/video/sketcher.plugin(_ZN18SketcherCurveColor17handle_done_eventEi+0x76) [0x7f1b8002a5f6] /home/cin5/bin/./cin(_ZN15BC_DialogThread3runEv+0xd8)[0x557069f6fb78] /home/cin5/bin/./cin(_ZN6Thread10entrypointEPv+0x45)[0x557069fc5995] /usr/lib/libpthread.so.0(+0x7a9d) [0x7f1b91b4ea9d] /usr/lib/libc.so.6(clone+0x43) [0x7f1b90accb23] - - - - - - - - To see which routine is reporting the booby keyin: c++filt And then the 2nd line in the backtrace above: _ZN13BC_WindowBase9draw_lineEiiiiP9BC_Pixmap It comes back with the routine as: BC_WindowBase::draw_line(int, int, int, int, BC_Pixmap*)