diff -rNu linux-2.4.21-rc1/kernel/ptrace.c linux-2.4.21-rk1/kernel/ptrace.c
--- linux-2.4.21-rc1/kernel/ptrace.c	2003-05-08 00:48:39.000000000 +0200
+++ linux-2.4.21-rk1/kernel/ptrace.c	2003-05-08 00:53:02.000000000 +0200
@@ -21,9 +21,6 @@
  */
 int ptrace_check_attach(struct task_struct *child, int kill)
 {
-	mb();
-	if (!is_dumpable(child))
-		return -EPERM;
 
 	if (!(child->ptrace & PT_PTRACED))
 		return -ESRCH;
@@ -140,8 +137,6 @@
 	/* Worry about races with exit() */
 	task_lock(tsk);
 	mm = tsk->mm;
-	if (!is_dumpable(tsk) || (&init_mm == mm))
-		mm = NULL;
 	if (mm)
 		atomic_inc(&mm->mm_users);
 	task_unlock(tsk);
diff -rNu linux-2.4.21-rc1/kernel/sys.c linux-2.4.21-rk1/kernel/sys.c
--- linux-2.4.21-rc1/kernel/sys.c	2003-05-08 00:48:39.000000000 +0200
+++ linux-2.4.21-rk1/kernel/sys.c	2003-05-08 00:53:02.000000000 +0200
@@ -1246,8 +1246,7 @@
 				error = -EINVAL;
 				break;
 			}
-			if (is_dumpable(current))
-				current->mm->dumpable = arg2;
+			current->mm->dumpable = arg2;
 			break;
 
 	        case PR_SET_UNALIGN: