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Date:      Thu, 3 Aug 2023 10:14:12 -0400
From:      Ed Maste <emaste@freebsd.org>
To:        FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Heads-up: MAXCPU increasing shortly
Message-ID:  <CAPyFy2A8zSaT=yjRWvk14Gn0oHv9gykhD_rDgaTZxfLyGyRQQg@mail.gmail.com>
In-Reply-To: <CAPyFy2DODJVhs5o8xddaj7GD8zZfC3g1zm_guWKeCmeE07wn-w@mail.gmail.com>
References:  <CAPyFy2DODJVhs5o8xddaj7GD8zZfC3g1zm_guWKeCmeE07wn-w@mail.gmail.com>

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On Fri, 5 May 2023 at 09:38, Ed Maste <emaste@freebsd.org> wrote:
>
> FreeBSD supports up to 256 CPU cores in the default kernel configuration
> (on Tier-1 architectures).  Systems with more than 256 cores are
> available now, and will become increasingly common over FreeBSD 14=E2=80=
=99s
> lifetime.  The FreeBSD Foundation is supporting the effort to increase
> MAXCPU, and PR269572[1] is open to track tasks and changes.

I intend to commit the change to increase amd64 MAXCPU to 1024 very
soon. After updating your src tree and building a new kernel you will
need to rebuild kernel modules that come from outside of the src tree
(such as drm-kmod or VirtualBox).

[1] https://bugs.freebsd.org/269572



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