--- linux/fs/proc/array.c.orig	Sun Mar 11 22:42:37 2001
+++ linux/fs/proc/array.c	Sun Mar 11 22:43:26 2001
@@ -271,6 +271,7 @@
 extern int get_wchan_stack(struct task_struct *p, unsigned long *stack, int max);
 inline char *task_stack(struct task_struct *p, char *buffer)
 {
+#ifdef CONFIG_X86
 	unsigned long stack[64];
 	int i;
 	int cnt = get_wchan_stack(p, stack, 64);
@@ -278,6 +279,7 @@
 		buffer += sprintf(buffer, "Stack[%d]: %lx\n",
 				  i, stack[i]);
 	}
+#endif
 	return buffer;
 }