--- linux-2.4.22/kernel/fork.c	Mon Aug 25 13:44:44 2003
+++ linux-2.4.26/kernel/fork.c	Wed Apr 14 15:05:40 2004
@@ -114,8 +114,10 @@
 						last_pid = 300;
 					next_safe = PID_MAX;
 				}
-				if(unlikely(last_pid == beginpid))
+				if(unlikely(last_pid == beginpid)) {
+					next_safe = 0;
 					goto nomorepids;
+				}
 				goto repeat;
 			}
 			if(p->pid > last_pid && next_safe > p->pid)
@@ -266,6 +268,7 @@
 {
 	BUG_ON(mm == &init_mm);
 	pgd_free(mm->pgd);
+	check_pgt_cache();
 	destroy_context(mm);
 	free_mm(mm);
 }
@@ -668,6 +671,7 @@
 	 * than the amount of processes root is running. -- Rik
 	 */
 	if (atomic_read(&p->user->processes) >= p->rlim[RLIMIT_NPROC].rlim_cur
+		      && p->user != &root_user
 	              && !capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE))
 		goto bad_fork_free;
 
@@ -746,7 +750,8 @@
 		goto bad_fork_cleanup_fs;
 	if (copy_mm(clone_flags, p))
 		goto bad_fork_cleanup_sighand;
-	if (copy_namespace(clone_flags, p))
+	retval = copy_namespace(clone_flags, p);
+	if (retval)
 		goto bad_fork_cleanup_mm;
 	retval = copy_thread(0, clone_flags, stack_start, stack_size, p, regs);
 	if (retval)
@@ -821,6 +826,8 @@
 	exit_namespace(p);
 bad_fork_cleanup_mm:
 	exit_mm(p);
+	if (p->active_mm)
+		mmdrop(p->active_mm);
 bad_fork_cleanup_sighand:
 	exit_sighand(p);
 bad_fork_cleanup_fs: