From 8725350c86f185c59b9c3a28aaa3f9710d470b2f Mon Sep 17 00:00:00 2001 From: jhb Date: Wed, 10 Dec 2003 15:59:20 +0000 Subject: Add a note about MPTABLE_FORCE_HTT. Prompted by: John Stockdale --- UPDATING | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'UPDATING') diff --git a/UPDATING b/UPDATING index 8be111b..359e4825 100644 --- a/UPDATING +++ b/UPDATING @@ -50,6 +50,14 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 5.x IS SLOW: netgraph to boot need to make sure to have world and kernel in sync before rebooting. +20031111: + Hyperthreading logical CPU's are no longer probed by default + when using the MP Table. If ACPI is being used, then logical + CPUs will be probed if hyperthreading is enabled in the BIOS. + If ACPI is not being used and hyperthreading is enabled in the + BIOS, logical CPUs can be enabled by building a custom kernel + with the option MPTABLE_FORCE_HTT enabled. + 20031103: The i386 APIC_IO kernel option has been replaced by 'device apic'. The ACPI module has also been temporarily -- cgit v1.1