Subject: Re: unexpected machine checks
To: Nick <>
From: Nathan J. Williams <nathanw@MIT.EDU>
List: port-alpha
Date: 01/12/2001 20:00:58
> Unexpected Machine Check
> 	mces	= 0x1
> 	vector	= 0x660
> 	param	= 0xfffffc0000006000
> 	pc	= 0xfffffc0000302c20
> 	ra	= 0xfffffc0007372f10
> 	curproc	= 0x0
> 		pid = 362, comm = amp
> Is this indicative of bad memory?  How would I go about
> finding out what these machine checks mean?

Well, the machine check codes for the as200 are documented, and you
can get them if you examine the value at param + 0x10 from the console
when this happens. Something like "x fffffc0000006010" at the >>>

(My as200 started doing this after a particularly warm summer; turned
out to be problems with the cache RAM failing. Yuck.)

        - Nathan