Listing 1. Kernel Patch to Limit Forking

2.3.26/kernel/fork.c	Thu Oct 28 22:30:51 1999

+++ /tmp/fork.c	Tue Nov  9 01:34:36 1999

@@ -591,6 +591,14 @@

 	int retval = -ENOMEM;

 	struct task_struct *p;

 	DECLARE_MUTEX_LOCKED(sem);

+	static long last_fork;

+

+	while (time_after(last_fork+1, jiffies))

+	{

+		__set_current_state(TASK_INTERRUPTIBLE);

+		schedule_timeout(1);

+	}

+	last_fork = jiffies;

 	if (clone_flags & CLONE_PID) {

 /* This is only allowed from the boot up thread */