[PATCH] x86_64: Report SIGSEGV for IRET faults

tcsh is not happy with the -9999 error code.

Suggested by Ernie Petrides
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/x86_64/kernel/entry.S

@@ -553,7 +553,7 @@ iret_label:
 	/* force a signal here? this matches i386 behaviour */
 	/* running with kernel gs */
 bad_iret:
-	movq $-9999,%rdi	/* better code? */
+	movq $11,%rdi	/* SIGSEGV */
 	sti
 	jmp do_exit			
 	.previous