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| author | jhb <jhb@FreeBSD.org> | 2003-12-10 15:59:20 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2003-12-10 15:59:20 +0000 |
| commit | 8725350c86f185c59b9c3a28aaa3f9710d470b2f (patch) | |
| tree | cd47d0cd8e039ed63b493d2fc199f9aa731ef1c4 /UPDATING | |
| parent | 996dcd98e5724c5fd1cf71a8cefda45729291d4d (diff) | |
| download | FreeBSD-src-8725350c86f185c59b9c3a28aaa3f9710d470b2f.zip FreeBSD-src-8725350c86f185c59b9c3a28aaa3f9710d470b2f.tar.gz | |
Add a note about MPTABLE_FORCE_HTT.
Prompted by: John Stockdale <jstockdale@stanford.edu>
Diffstat (limited to 'UPDATING')
| -rw-r--r-- | UPDATING | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -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 + 20031103: The i386 APIC_IO kernel option has been replaced by 'device apic'.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 |
