[src/trunk]: src/sys/arch/usermode/usermode OK, this is a temporary patch so ...

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

details:   https://anonhg.NetBSD.org/src/rev/421989dda512
branches:  trunk
changeset: 772028:421989dda512
user:      reinoud <reinoud%NetBSD.org@localhost>
date:      Wed Dec 14 17:06:28 2011 +0000

description:
OK, this is a temporary patch so usermode can run on 5.1 or old 5.99's. The
workaround mentioned here is not needed on newer 5.99 since it has just been
patched.

diffstat:

 sys/arch/usermode/usermode/pmap.c |  11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)

diffs (32 lines):

diff -r f058e2e3016a -r 421989dda512 sys/arch/usermode/usermode/pmap.c
--- a/sys/arch/usermode/usermode/pmap.c Wed Dec 14 14:18:19 2011 +0000
+++ b/sys/arch/usermode/usermode/pmap.c Wed Dec 14 17:06:28 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.78 2011/12/14 12:29:59 jmcneill Exp $ */
+/* $NetBSD: pmap.c,v 1.79 2011/12/14 17:06:28 reinoud Exp $ */
 
 /*-
  * Copyright (c) 2011 Reinoud Zandijk <reinoud%NetBSD.org@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.78 2011/12/14 12:29:59 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.79 2011/12/14 17:06:28 reinoud Exp $");
 
 #include "opt_memsize.h"
 #include "opt_kmempages.h"
@@ -370,7 +370,12 @@
 void
 pmap_init(void)
 {
-       /* ensure signal stack is setup after urkelvisor fork */
+       /* 
+        * XXX Work around a NetBSD fork() bug that doesn't copy the alternate
+        * signal stack to the child!  so ensure signal stack is setup after
+        * urkelvisor fork
+        */
+
        thunk_sigaltstack(usermode_signal_stack(), NULL);
 }