RL02K Pack Reliability/Characteristics
bqt at update.uu.se
Fri Apr 3 08:39:05 CDT 2015
On 2015-04-01 21:04, Paul Koning wrote:
>> On Apr 1, 2015, at 2:55 PM, Noel Chiappa <jnc at mercury.lcs.mit.edu> wrote:
>>> From: Paul Koning
>>> The general rule of device drivers is to assume that the hardware is
>>> misbehaving, and double check everything.
>> Right, but it needs to _actively log_ when it has to fix something, otherwise
>> you wind up in the situation of the semi-famous old Multics problem where
>> (IIRC) the system was running slower and slower...
> Certainly. And, for example, RSTS/E contains an error logging daemon for that reason. (Well, RSTS doesn’t call background programs daemons, but that’s what they amount to.)
Yeah. Same in all DEC OSes, one way or another.
Of course you have some proper error logging. Otherwise systems will be
very hard to diagnose when you start getting problems.
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