git: da695970cee9 - main - UPDATING: add a note about EARLY_AP_STARTUP on x86

The branch main has been updated by emaste:

URL: https://cgit.FreeBSD.org/src/commit/?id=da695970cee95d0b460c451d5ff9c2cea04f1b73

commit da695970cee95d0b460c451d5ff9c2cea04f1b73
Author:     Ed Maste <emaste@FreeBSD.org>
AuthorDate: 2023-09-27 16:34:07 +0000
Commit:     Ed Maste <emaste@FreeBSD.org>
CommitDate: 2023-09-27 16:35:17 +0000

    UPDATING: add a note about EARLY_AP_STARTUP on x86
    
    Requested by:   wollman (in D41351)
---
 UPDATING | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/UPDATING b/UPDATING
index 38362cb86b73..a1bcecadd357 100644
--- a/UPDATING
+++ b/UPDATING
@@ -27,6 +27,11 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 15.x IS SLOW:
 	world, or to merely disable the most expensive debugging functionality
 	at runtime, run "ln -s 'abort:false,junk:false' /etc/malloc.conf".)
 
+20230927:
+	The EARLY_AP_STARTUP kernel option is mandatory on x86.  The option
+	has been added to DEFAULTS, so it should automatically be included in
+	custom kernel configurations without any additional change.
+
 20230922:
 	A new loader tunable net.pf.default_to_drop allows pf(4)’s default
 	behaviour to be changed from pass to drop. Previously this required