kern/54276: ioapic can't remap

[Thomas Klausner <wiz%NetBSD.org@localhost>]

>Number:         54276
>Category:       kern
>Synopsis:       ioapic can't remap
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jun 05 23:15:00 +0000 2019
>Originator:     Thomas Klausner
>Release:        NetBSD 8.99.41
>Organization:
Curiosity is the very basis of education and if you tell me that
curiosity killed the cat, I say only that the cat died nobly.
- Arnold Edinborough
>Environment:
	
	
Architecture: x86_64
Machine: amd64
>Description:
Booting the amd64 USB install image from
https://nyftp.netbsd.org/pub/NetBSD-daily/HEAD/201905242230Z/images/
on a new Threadripper system I see:

ioapic0 at mainbus0 apid 128
ioapic0: can't remap to apid 128

(Same for 129, 130).

OpenBSD 6.5 has similar output, FreeBSD 12.0 remaps them (according to its dmesg).
>How-To-Repeat:
Boot a GENERIC kernel on this system.
>Fix:
Perhaps it's not even a bug, but it looks like one.

>Unformatted: