[src/trunk]: src/sys/arch/vax/vax Kernel crash dumps are not properly impleme...

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

details:   https://anonhg.NetBSD.org/src/rev/d49535bc88ed
branches:  trunk
changeset: 781224:d49535bc88ed
user:      martin <martin%NetBSD.org@localhost>
date:      Mon Aug 27 22:25:09 2012 +0000

description:
Kernel crash dumps are not properly implemented - so do not pretend they
would exist and set dumplo to 0 if dumpsize is 0. This makes savecore
happy.
XXX - implement real dumps, most of the needed code seems to be in place
already.

diffstat:

 sys/arch/vax/vax/machdep.c |  11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diffs (32 lines):

diff -r a94e8dab3bf3 -r d49535bc88ed sys/arch/vax/vax/machdep.c
--- a/sys/arch/vax/vax/machdep.c        Mon Aug 27 21:50:19 2012 +0000
+++ b/sys/arch/vax/vax/machdep.c        Mon Aug 27 22:25:09 2012 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: machdep.c,v 1.188 2012/05/21 14:15:19 martin Exp $  */
+/* $NetBSD: machdep.c,v 1.189 2012/08/27 22:25:09 martin Exp $  */
 
 /*
  * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
@@ -83,7 +83,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.188 2012/05/21 14:15:19 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.189 2012/08/27 22:25:09 martin Exp $");
 
 #include "opt_ddb.h"
 #include "opt_compat_netbsd.h"
@@ -245,6 +245,13 @@
         */
        if (dumplo < btodb(PAGE_SIZE))
                dumplo = btodb(PAGE_SIZE);
+
+       /*
+        * If we have nothing to dump (XXX implement crash dumps),
+        * make it clear for savecore that there is no dump.
+        */
+       if (dumpsize <= 0)
+               dumplo = 0;
 }
 
 static int