recent persistent boot failures

[Erik Bertelsen <bertelsen.erik%gmail.com@localhost>]

When booting recently built kernels (i.e. from sources after
2011-12-26) I have experienced boot failures like this:

Rebooting with command: boot
Boot device: disk  File and args:
NetBSD IEEE 1275 Bootblock
>> NetBSD/sparc64 OpenFirmware Boot, Revision 1.10
>> (erik%unidata.h.erikb.net@localhost, Sun Jul  8 02:00:04 CEST 2007)
=0x414228
Loading netbsd: 2303736+82408+182984=0x441330
Fast Data Access MMU Miss
ok boot netbsd.140

This happens both with kernels based on my custom configuration as
well as GENERIC.

Any explanations? hw problems?

Booting the kernel from 2011-12-26 (netbsd.140) consistently succeeds.

-
Erik