From c8d7b01a138a09ab875b9660c27e65c369f9e03b Mon Sep 17 00:00:00 2001
From: marc <>
Date: Fri, 5 Jan 2001 04:27:22 +0000
Subject: [PATCH] Add i386 specific sysctl to modify halt -p processing,
 required to make powerdown work correctly on some processors.   Idea from
 mickey@ and smcho@tsp.korea.ac.kr.   Tested my me and angelos@.

Note: If you want to try these out you'll need to

  cd /sys/arch/i386/include &&
sudo install -m 444 -o root -g root cpu.h /usr/include/i386
cd /usr/src/sbin/sysctl && make obj && make && sudo make install

to get a sysctl that understands the new variable (machdep.apmhalt).
---
 src/etc/etc.i386/sysctl.conf | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/etc/etc.i386/sysctl.conf b/src/etc/etc.i386/sysctl.conf
index 8e96d662..4cdc72eb 100644
--- a/src/etc/etc.i386/sysctl.conf
+++ b/src/etc/etc.i386/sysctl.conf
@@ -1,3 +1,4 @@
 #machdep.allowaperture=1	# 1=permit access to aperture driver (XFree86)
 #machdep.apmwarn=10		# battery % when apm status messages enabled
+#machdep.apmhalt=0		# 1=powerdown hack, try if halt -p doesn't work
 #machdep.kbdreset=1		# permit console CTRL-ALT-DEL to do a nice halt