Re: Nasty suprise with uptime

Ville Herva (vherva@niksula.hut.fi)
Tue, 30 Oct 2001 10:15:08 +0200


On Mon, Oct 29, 2001 at 11:46:15PM -0800, you [Mike Fedyk] claimed:
> On Tue, Oct 30, 2001 at 06:46:03PM +1100, Neale Banks wrote:
> >
> > You mean there was a time when uptime>496days would crash a system?
> >
> > If so, approximtely when did that get fixed?
> >
> > (I'm thinking back to an as yet unexplained crash of a 2.0.38 system at
> > ~496days uptime :-( )
>
> AFAIK, the system didn't crash, but the uptime counter went down to zero.

Oh yes, sometimes 2.0 kernel would crash at 497.1 days¹. I guess it depends
on what you were doing at the time and what drivers and options you were
using. I think most of the jiffies wraparound bugs were cleaned at the
2.1.x time (so I have been told.)

(I've experienced one such crash, I'm not sure whether it was 2.0.36 or
2.0.38.)

-- v --

v@iki.fi

¹) it is 497.10 days or 2^32 seconds, not 496 days.
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