freebsd stable - Jun 2020 - HP Business PC - NMI problem

Hi,

today I installed FreeBSD 12,1 on HP 260 G1 DM Business PC. There were
no troubles in install phase, but after rebooting into newly installed
system I am getting repeating messages on console NMI/cpu0. When system
loads up to login prompt, everything seems working, I can Alt-F2 switch
to another screen and login, install a port (or do it through network),
just on console/first screen much messages are being output, which is
annoying and makes one screen unusable.

Sometimes it looks like boot process stops/hangs, then one must press
power to shutdown the box, then start it again.

From log:

kernel: NMI/cpu0 ... going to debugger
kernel: NMI ISA 3c, EISA ff

(number changes sometimes to 2c, less frequently compared to 3c)

Has anybody any hint how to solve this issue?

Regards,
Milan

> today I installed FreeBSD 12,1 on HP 260 G1 DM Business PC. There were
> [...]
> kernel: NMI ISA 3c, EISA ff
EISA?  How old is that machine?  Is that a i386 machine?

You could try to boot with safe settings and/or disable ACPI.
-- 
=|o)	"Stell' Dir vor es geht und keiner kriegt's hin."
(Wolfgang Neuss)