[src/trunk]: src/sys/arch/ia64/ia64 Add volatile flag which might help with s...

[scole <scole%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e1f115d05437
branches:  trunk
changeset: 347064:e1f115d05437
user:      scole <scole%NetBSD.org@localhost>
date:      Fri Aug 12 02:08:20 2016 +0000

description:
Add volatile flag which might help with ski emulator and longjmp, ok'ed by <joerg>

diffstat:

 sys/arch/ia64/ia64/vm_machdep.c |  4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diffs (18 lines):

diff -r 70cce663967d -r e1f115d05437 sys/arch/ia64/ia64/vm_machdep.c
--- a/sys/arch/ia64/ia64/vm_machdep.c   Fri Aug 12 02:03:26 2016 +0000
+++ b/sys/arch/ia64/ia64/vm_machdep.c   Fri Aug 12 02:08:20 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vm_machdep.c,v 1.11 2011/02/10 14:46:46 pooka Exp $    */
+/*     $NetBSD: vm_machdep.c,v 1.12 2016/08/12 02:08:20 scole Exp $    */
 
 /*
  * Copyright (c) 2006 The NetBSD Foundation, Inc.
@@ -84,7 +84,7 @@
     void (*func)(void *), void *arg)
 {
        struct pcb *pcb1, *pcb2;
-       struct trapframe *tf;
+       struct trapframe * volatile tf;
 
        pcb1 = lwp_getpcb(l1);
        pcb2 = lwp_getpcb(l2);