[3019] in Hotline Meeting
Re: podge
daemon@ATHENA.MIT.EDU (Mark W. Eichin)
Thu Jan 3 04:47:28 1991
Date: Thu, 3 Jan 91 02:18:14 -0500
From: Mark W. Eichin <eichin@ATHENA.MIT.EDU>
To: dcctdw@ATHENA.MIT.EDU
Cc: sipb@ATHENA.MIT.EDU, hotline@ATHENA.MIT.EDU
In-Reply-To: dcctdw@ATHENA.MIT.EDU <9101021831.AA26549@hodge>
>> podge's SIMM 6 & 7 were replaced around 1ish today. if that goofs up, the
>> guy who was here says that it's probably the power supply, or our cosmic
>> ray source in the refrigerator
>> dave
Well, time to bring in the geiger counter. Podge panic'd on me
with two SIMM errors (the first was SIMM 7, I missed the other) at the
same time (or maybe it reported one twice? they got cleared too
quickly.) This occurred at 1am, Thursday January 3 (ie about an hour
ago...)
I was just able to duplicate it. Simply run /simm_test (a copy
of /mit/raeburn/time-check). SIMM 7, physical address 0xe4f2ec,
reported twice (the second time it says "Memory error in kernel mode"
or something like that.) Since it happens precisely at the same
address every time, I'd assume it was not alpha particles, but a truly
bad or misseated SIMM.
Please verify that /simm_test runs next time you work on the
machine; perhaps we should include it in /etc/rc.local to *guarantee*
that it runs :-)
_Mark_ <eichin@athena.mit.edu>
MIT Student Information Processing Board
ps. I've left it down for now - each time it crashes, it corrupts the
filesystem. I suspect that actually running will do more harm than
good.
