From: patrick <patrick@openbsd.org>
Date: Thu, 11 Jan 2018 18:58:17 +0000 (+0000)
Subject: Postpone secondary CPUs until after mounthook activities.  This is
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=c2f1302a8c4c1e471ff4f993df3830c9702085d7;p=openbsd

Postpone secondary CPUs until after mounthook activities.  This is
useful for loading CPU microcode from the disk before the CPUs are
let go.

Tested by visa@ on sgi, loongson and octeon
"don't see immediate issues" kettenis@
ok deraadt@
---

diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c
index bc936626666..270761750c8 100644
--- a/sys/kern/init_main.c
+++ b/sys/kern/init_main.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: init_main.c,v 1.272 2018/01/01 08:23:19 jsg Exp $	*/
+/*	$OpenBSD: init_main.c,v 1.273 2018/01/11 18:58:17 patrick Exp $	*/
 /*	$NetBSD: init_main.c,v 1.84.4.1 1996/06/02 09:08:06 mrg Exp $	*/
 
 /*
@@ -546,13 +546,13 @@ main(void *framep)
 		panic("fork zerothread");
 #endif
 
+	config_process_deferred_mountroot();
+
 #if defined(MULTIPROCESSOR)
 	/* Boot the secondary processors. */
 	cpu_boot_secondary_processors();
 #endif
 
-	config_process_deferred_mountroot();
-
 	/*
 	 * Okay, now we can let init(8) exec!  It's off to userland!
 	 */