How many CPU cores does FreeBSD support?

Steve O'Hara-Smith steve at
Wed Jan 4 19:30:53 UTC 2017

On Wed, 04 Jan 2017 18:53:23 +0000
Eric Joyner <erj at> wrote:

> MADT: Ignoring local APIC ID 303 (too high)

	Hmm you said this machine has 272 cores so clearly the IDs have
gaps (I have no idea why there are gaps or where these IDs are allocated
though). I expect you'll find that 223 of the cores have IDs below 256 and
the remaining 49 have IDs of 256 and above and FreeBSD is not using those

Steve O'Hara-Smith <steve at>

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