[LEAPSECS] Cost: getting rid of GMT & discontinuing leap seconds

[p at 2038bug.com]

> The CASIMO Flight Control software is 

> a typical example:  Every time [...]


I must say this is one example that sounds
serious. Albeit the only serious example IMO thus far.

Would love to hear from someone with inside info
on Casimo to explain what's the deal here.

-paul

------Original Message------
From: Poul-Henning Kamp
Sender: phk at critter.freebsd.dk
To: p at 2038bug.com
To: Leap Second Discussion List
Cc: ashton at ieee.org
Subject: Re: [LEAPSECS] Cost: getting rid of GMT & discontinuing leap seconds
Sent: Oct 24, 2010 13:12

In message <1275094941-1287937815-cardhu_decombobulator_blackberry.rim.net-1452
353184- at bda950.bisx.prod.on.blackberry>, p at 2038bug.com writes:


>Examples of such programs with a material manifestation of a problem?


The CASIMO Flight Control software is a typical example:  Every time
a leap second happens, the flight controllers are instructed to attain
a situation that does not require their existance around the leap second
and sit back and watch the fireworks.

Medicine production is another case:  In continuous production
setups, all materials have to be traceable to with second granualirity
(FDA, EU and other regulations), which basically means that either
nothing happens over the leap second (ie: maintenance shutdown) or
everything in the factory has to cope correctly with leap seconds.

Fortunately, leap seconds happen in the middle of the night here in Denmark.

Poul-Henning

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



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