only one logical CPU used in Xeon

Adrian Penisoara ady at
Tue Mar 10 07:28:59 PDT 2009


On Tue, Mar 10, 2009 at 11:40 AM, Robert Heron <robert at> wrote:

> Hi,
> I have FreeBSD 6.2R running on Intel SE7501HG2 motherboard with two Xeon
> installed.
> System detects 2 CPUs with 2 cores in each of them (total 4 cores) but it
> uses only one core in each Xeon (total 2 of 4 cores are used only).
> I see it in the 'top'. I tried the same hardware on FreeBSD 7.1R and this
> OS uses all of the detected cores.
> What should I do FreeBSD 6.2R to use all of the available cores?

You should post your dmesg output (eventually from both 6.2 and 7.1, kernel
booted verbosely with -v in bootloader) and/or submit a ProblemReport


> I cannot upgrade it to 7.x, must use 6.x
> Regards,
> Robert Heron
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