These just started appearing on my SS20.  Is this a SIMM going bad,
or something worse?  Anyone know, or have suggestions on diagnosis?
I haven't dropped the machine into the PROM yet to run the standard
memory test.

Nov 13 18:40:53 ra /netbsd: memory error:
Nov 13 18:40:53 ra /netbsd:     EFSR: 6231<CE,DW=3,SYNDROME=62>
Nov 13 18:40:54 ra /netbsd:     MBus transaction: 87ffcd30<VAH=0,TYPE=3,SIZE=5,C,VA=ff,MID=8>
Nov 13 18:40:54 ra /netbsd:     address: 0x03396920
Nov 13 18:40:54 ra /netbsd: cpu0: NMI: system interrupts: 10000000<VME=0,SBUS=0,

Jon