Dual core CPUs support

Bruce Burden brucegb at realtime.net
Wed Dec 21 12:42:03 PST 2005

On Wed, Dec 21, 2005 at 09:12:22PM +0100, Tomas Randa wrote:
> Hello all friends of FreeBSD unix,
> I?d like to ask here, what is the actual situation with dual core CPUs - 
> Athlon 64 X2 etc. and their functionality with FreeBSD 5.X / 6.X / 7.0 
> current.
> I tried 5.4/i386 with options  SMP, 6.0/i386 with the same config, in 
> both cases system found only one CPU, but on 5.4 system wrote HTT 2 
> logical units.
	The i386 version disables HTT by default (see the security
   notices for summer 2005 or thereabouts), so I am not surprised that
   your second core is ignored/not reported. There is a switch that
   will enable the HTT (second core, in your case) if you wish.

	As another poster mentiond, the AMD64 version of FBSD will
   recognise the second core as expected.

  "I like bad!"                         Bruce Burden    Austin, TX.
        - Thuganlitha
        The Power and the Prophet
        Robert Don Hughes

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