On Thursday 29 April 2004 05:22 pm, Julian Elischer wrote: > I have an intel server motherboard that has 2 Xeom HTT processors. > > FreeBSD correctly finds 4 processors but mptable only shows the 2 > physical processors. > > I assume this means the BIOS is buggy, as Hyperthreading is turned on > in the BIOS and I assume it should have put all 4 in the table. > > Anyone seen anything like this? > anything I should worry about? > FreeBSD 4.8++ seems to work on it just fin and sees all 4 cpus.. > Would -current have any problems? I vaguely remember that -current > might trust the Bios tables a bit more.. MP Tables almost never show logical processors. -current does a better job as it uses the MADT which does list logical processors. -current's mptable code can be forced to assume that any logical processors are enabled (which is what 4.x does) via the 'MPTABLE_FORCE_HTT' kernel option. -- John Baldwin <jhb_at_FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.orgReceived on Fri Apr 30 2004 - 05:51:36 UTC
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