diff -Naur ./arch/i386/kernel/signal.c ../linux-new/./arch/i386/kernel/signal.c
--- ./arch/i386/kernel/signal.c	Fri Sep 14 15:15:40 2001
+++ ../linux-new/./arch/i386/kernel/signal.c	Wed Jan 23 13:26:07 2002
@@ -698,7 +698,9 @@
 		 * have been cleared if the watchpoint triggered
 		 * inside the kernel.
 		 */
-		__asm__("movl %0,%%db7"	: : "r" (current->thread.debugreg[7]));
+
+		if (current->thread.debugreg[7])
+		   __asm__("movl %0,%%db7"	: : "r" (current->thread.debugreg[7]));
 
 		/* Whee!  Actually deliver the signal.  */
 		handle_signal(signr, ka, &info, oldset, regs);