gal kam reisks detali instrukcija
To force a panic to test you new crash setup, compile the following code 
with cc -c -I/usr/src/linux/include panic.c . After building the panic.o 
module just insmod panic.o to panic the kernel.

  ### panic.c ###########################

  #define __KERNEL__
  # MODULE

  # include init_module(void)

  int init_module (void)
  {
      panic(" panic has been called");
      return 0;
  }




http://www.faqs.org/docs/Linux-HOWTO/Linux-Crash-HOWTO.html