git: ca83345ab42b - main - UPDATING: Add note about DMAR

The branch main has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=ca83345ab42b18c876d63579d86df2521c7ff402

commit ca83345ab42b18c876d63579d86df2521c7ff402
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2024-08-14 14:52:47 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2024-08-14 15:00:37 +0000

    UPDATING: Add note about DMAR
    
    DMAR crashes my laptop on boot, I had to disable it in the boot
    laoder. Add a note until this is handled more gracefully.
    
    Sponsored by:           Netflix
---
 UPDATING | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/UPDATING b/UPDATING
index cffafdb5d247..bbcbdad9bfd7 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".)
 
+20240813:
+	DMAR is now enabled by default on Intel. If your system crashes in the
+	dmar code on boot, please set 'hw.dmar.enable=0' in /boot/loader.conf
+	and file a bug.
+
 20240729:
 	The build now defaults to WITHOUT_CLEAN - i.e., no automatic clean
 	is performed at the beginning of buildworld or buildkernel.  The