Hello Itsuro, One additional request... Can you rebuild your patched version of crash by doing this: # touch defs.h; make warn There's a bunch of cleanup that needs to be done in task.c, x86.c, xen_hyper.c, xen_hyper_command.c and xen_hyper_global_data.c. (You can ignore the complaints from cmdline.c -- they are generated from the readline.h header file in the gdb sources.) Thanks, Dave