Dear Craig, Thanks for re-opening. (Good that finally you were able to observe yourself.)
> could btime be wrong? I always suspected exactly that! Suspected, because I do not really know how any of this works. The way I understood things (this is probably totally wrong): Process times, including start times, are counted in "jiffies", some count that is monotonically increasing; and it is "known" that one jiffy is some fraction of a second. But that does not take into account time adjustments (say by ntpd). When time is adjusted, the "current jiffy" is left unchanged: not incremented when that would be appropriate, also never decremented as neither time nor jiffies are ever set backwards but some other slowdown mechanism is used. Either the set-forward should use some speedup mechanism similar to slowdown, or increment jiffies together with the time. Hope the above makes some sense. Cheers, Paul -- Paul Szabo p...@maths.usyd.edu.au www.maths.usyd.edu.au/u/psz School of Mathematics and Statistics University of Sydney Australia Join the Union and fight for a better University: www.nteu.au/join