On Mon, 07 Aug 2006 19:16:06 +0200 Andreas Niederl (AN) wrote: AN> is Fiasco-UX suited for debugging with GDB? Yes AN> [...], but it always results in segmentation faults concerning the AN> calls to the cli and sti instructions. You must tell GDB to ignore SIGSEGV signals and pass them on to Fiasco-UX. The following at the GDB prompt will do: handle 11 nostop noprint Of course you could also do this from .gdbinit. Note that when using Fiasco-UX with GDB you'll lose the ability to use Fiasco's built-in debugger JDB as SIGTRAP is used by GDB. - Udo -- Dipl.-Inf. Udo Steinberg Technische Universität Dresden http://os.inf.tu-dresden.de/~us15 Institute for System Architecture Tel: +49 351 463 38401 D-01062 Dresden Fax: +49 351 463 38284