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Diffstat (limited to 'share/man/man4/man4.socppc/mem.4')
-rw-r--r--share/man/man4/man4.socppc/mem.413
1 files changed, 9 insertions, 4 deletions
diff --git a/share/man/man4/man4.socppc/mem.4 b/share/man/man4/man4.socppc/mem.4
index 4535058ec2b..a5e6c0d4496 100644
--- a/share/man/man4/man4.socppc/mem.4
+++ b/share/man/man4/man4.socppc/mem.4
@@ -30,10 +30,10 @@
.\" SUCH DAMAGE.
.\"
.\" from: @(#)mem.4 8.1 (Berkeley) 6/5/93
-.\" $OpenBSD: mem.4,v 1.1 2008/05/14 21:08:09 miod Exp $
+.\" $OpenBSD: mem.4,v 1.2 2017/09/12 02:22:15 schwarze Exp $
.\" $NetBSD: mem.4,v 1.1 1997/06/08 17:40:57 ender Exp $
.\"
-.Dd $Mdocdate: May 14 2008 $
+.Dd $Mdocdate: September 12 2017 $
.Dt MEM 4 socppc
.Os
.Sh NAME
@@ -61,8 +61,13 @@ On this platform, physical memory is always contiguous;
kernel virtual memory begins at
.Ad 0x00000000 .
.Pp
-Writeability of these devices is controlled by the system
-.Xr securelevel 7 .
+Even with sufficient file system permissions,
+these devices can only be opened when the
+.Xr securelevel 7
+is insecure or when the
+.Va kern.allowkmem
+.Xr sysctl 3
+variable is set.
.Sh FILES
.Bl -tag -width /dev/kmem -compact
.It /dev/mem