From: Jonathan Gray <jsg@jsg.id.au>
Subject: Re: amd64: zero direct map page tables in pmap_bootstrap
To: Mike Larkin <mlarkin@nested.page>
Cc: Amit Kulkarni <amitkulz@gmail.com>, Chris Cunningham <chris@abditory.io>, tech@openbsd.org
Date: Mon, 6 Apr 2026 09:23:53 +1000

On Sun, Apr 05, 2026 at 12:09:15PM -0700, Mike Larkin wrote:
> On Sun, Apr 05, 2026 at 11:23:44AM -0500, Amit Kulkarni wrote:
> > >
> > > > cpu62 at mainbus0: apid 124 (application processor)
> > > > cpu62: AMD Ryzen Threadripper PRO 9995WX 96-Cores, 2497.12 MHz,
> > > 1a-08-01, patch 0b008112
> > > > cpu62: cpuid 8000001F edx=-ca00446+121a0100
> > > > cpu62: smt 0, core 62, package 0
> > > > cpu63 at mainbus0: apid 126 (application processor)
> > > > cpu63: AMD Ryzen Threadripper PRO 9995WX 96-Cores, 2497.12 MHz,
> > > 1a-08-01, patch 0b008112
> > > > cpu63: cpuid 8000001F edx=-1100900+4c446453
> > > > cpu63: smt 0, core 63, package 0
> > >
> > >
> > Is it also capped at 64 CPUs? It should show 96.
> 
> indeed. I added support for that a few months back. Maybe the tree is
> downlevel in this build?
> 
> Also i think cpu0-191 should show up here.

The dmesg is with 7.8 not -current.  That change was after 7.8.