boot failure on DS 5000/133

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

With NetBSD-current on a pmax with sources of a couple days ago,
booting stops with:

KN02-BA V5.7j    (PC: 0x80100a1c, SP: 0xc3e59e00)

NetBSD/pmax 1.6ZC FFS Primary Bootstrap

NetBSD/pmax 5.99.40 Secondary Bootstrap, Revision 1.5
(root%sockdev.h.erikb.net@localhost, Sat Oct 10 23:31:25 CEST 2009)

Boot: 3/rz4/netbsd
1993232+62008 [130032+125248]=0x234804
Starting at 0x80030000

mips_fixup_stubs: 4548 fixups done in 0 cycles
mcclock: iters 11680 computed MHz 33, instrs per usec=19
panic: evcnt_attach_static: evcnt non initialized: group=<pmax> name=<serial0>
0x8002ff20: 0x800c8c78+80 (80226000,0,6,80210850) ra 0 sz 0
User-level: pid 0.1
halted.


KN02-BA V5.7j    (PC: 0xbfc00c0c, SP: 0x8002fef0)
>>


Any explanation or hints to what I can do?

kind regards
Erik