[src/trunk]: src/sys/arch/amd64/include Add one more page for the stack, to c...

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

details:   https://anonhg.NetBSD.org/src/rev/0e7a04c9aabb
branches:  trunk
changeset: 360544:0e7a04c9aabb
user:      maxv <maxv%NetBSD.org@localhost>
date:      Fri Mar 16 08:21:56 2018 +0000

description:
Add one more page for the stack, to compensate for the fact that SVS's
stack switching mechanism consumes approximately one page.

diffstat:

 sys/arch/amd64/include/param.h |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (21 lines):

diff -r b55632e535d7 -r 0e7a04c9aabb sys/arch/amd64/include/param.h
--- a/sys/arch/amd64/include/param.h    Fri Mar 16 08:21:45 2018 +0000
+++ b/sys/arch/amd64/include/param.h    Fri Mar 16 08:21:56 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: param.h,v 1.24 2018/02/19 13:02:47 sborrill Exp $      */
+/*     $NetBSD: param.h,v 1.25 2018/03/16 08:21:56 maxv Exp $  */
 
 #ifdef __x86_64__
 
@@ -58,9 +58,9 @@
 #define        SSIZE           1               /* initial stack size/NBPG */
 #define        SINCR           1               /* increment of stack/NBPG */
 #ifdef DIAGNOSTIC
-#define        UPAGES          4               /* pages of u-area (1 for redzone) */
+#define        UPAGES          5               /* pages of u-area (1 for redzone) */
 #else
-#define        UPAGES          3               /* pages of u-area */
+#define        UPAGES          4               /* pages of u-area */
 #endif
 #define        USPACE          (UPAGES * NBPG) /* total size of u-area */