[src/trunk]: src/share/man/man4 KSTACK_CHECK_DR0 is no longer available

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

details:   https://anonhg.NetBSD.org/src/rev/b1c9bbb45c35
branches:  trunk
changeset: 349519:b1c9bbb45c35
user:      kamil <kamil%NetBSD.org@localhost>
date:      Tue Dec 13 10:55:40 2016 +0000

description:
KSTACK_CHECK_DR0 is no longer available

It used to detect stackoverflow on the i386 port.

Sponsored by <The NetBSD Foundation>

diffstat:

 share/man/man4/options.4 |  6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)

diffs (20 lines):

diff -r 63892b0f993e -r b1c9bbb45c35 share/man/man4/options.4
--- a/share/man/man4/options.4  Tue Dec 13 10:54:27 2016 +0000
+++ b/share/man/man4/options.4  Tue Dec 13 10:55:40 2016 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: options.4,v 1.455 2016/12/01 02:12:21 mrg Exp $
+.\"    $NetBSD: options.4,v 1.456 2016/12/13 10:55:40 kamil Exp $
 .\"
 .\" Copyright (c) 1996
 .\"    Perry E. Metzger.  All rights reserved.
@@ -2517,10 +2517,6 @@
 See
 .Xr pcibios 4
 for details.
-.It Cd options KSTACK_CHECK_DR0
-Detect kernel stack overflow using DR0 register.
-This option uses DR0 register exclusively so you can't use DR0 register for
-other purpose (e.g., hardware breakpoint) if you turn this on.
 .It Cd options MTRR
 Include support for accessing MTRR registers from user-space.
 See