kern/53492: nouveau panics with booting from 8.0 amd64 CD

[scole_mail%gmx.com@localhost]

>Number:         53492
>Category:       kern
>Synopsis:       nouveau panics with booting from 8.0 amd64 CD
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Aug 02 02:45:00 +0000 2018
>Originator:     scole
>Release:        8.0
>Organization:
none
>Environment:
NetBSD localhost 8.0 NetBSD 8.0 (GENERIC) #0: Tue Jul 17 14:59:51 UTC 2018  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64
>Description:
Trying to boot with the install CD from
ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-8.0/amd64/installation/cdrom/boot.iso

fails with an NVIDIA GeForce 210. I see some messages about the kernel probing drm before the boot halts.  The last couple lines are (sorry these are hand copied):

drm kern info: nouveau [     DRM] DCB comm 02: 00000200
drm: Supports vblank timestamp caching Rev 2 (21.10.20130).
drm: Driver supports precise vblank timestamp query.
drm kern info: nouveau [     DRM] MM: using COPY for buffer copies
nouveaufb0 at nouveau0
nouveau0: info: registerd panic notifier

If I disable nouveau with "boot -c" it will boot fine.

I'll attach a dmesg from the disabled boot log which booted ago.
>How-To-Repeat:
Boot amd64 8.0 CD
>Fix: