toolchain/54269: crunched dmesg(8) misbehaves

[martin%NetBSD.org@localhost]

>Number:         54269
>Category:       toolchain
>Synopsis:       crunched dmesg(8) misbehaves
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jun 04 10:10:00 +0000 2019
>Originator:     Martin Husemann
>Release:        NetBSD 8.99.42
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD night-porter.duskware.de 8.99.42 NetBSD 8.99.42 (PORTER) #15: Mon Jun 3 18:52:37 CEST 2019 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/i386/compile/PORTER i386
Architecture: i386
Machine: i386
>Description:

When booted from i386 install floppies, the dmesg(8) command misbehaves.
The kernel boot messages itself are correct, e.g.:

[   1.0000000] NetBSD 8.99.42 (INSTALL) #2: Tue Jun  4 08:22:21 CEST 2019
[   1.0000000]  martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/obj/i386/work/src/sys/arch/i386/compile/INSTALL
[   1.0000000] total memory = 127 MB
[   1.0000000] avail memory = 105 MB
[   1.0000000] running cgd selftest aes-xts-256 aes-xts-512 done

but the output of dmesg (and also dmesg -t) are wrong, both show:

# dmesg|more
1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,0,
1.0000000]     2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 201 ,
1.0000000]     2018, 2019 The NetBSD Foundation, Inc.  All rights reserved.
1.0000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
1.0000000]     The Regents of the University of California.  All rights reserv. 

1.0000000] NetBSD 8.99.42 (INSTALL) #2: Tue Jun  4 08:22:21 CEST 2019
1.0000000]      martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/obj/i386/worsL
1.0000000] total memory = 127 MB
1.0000000] avail memory = 105 MB


>How-To-Repeat:
s/a
>Fix:
n/a