diff -ur linux-2.6.0-test9/fs/proc/array.c linux-2.6.0-test9-A/fs/proc/array.c
--- linux-2.6.0-test9/fs/proc/array.c	Sat Oct 25 18:21:46 2003
+++ linux-2.6.0-test9-A/fs/proc/array.c	Sat Oct 25 19:14:15 2003
@@ -295,7 +295,8 @@
 {
 	unsigned long vsize, eip, esp, wchan;
 	long priority, nice;
-	int tty_pgrp = -1, tty_nr = 0;
+	int tty_pgrp = -1;
+	volatile int tty_nr = 0;
 	sigset_t sigign, sigcatch;
 	char state;
 	int res;