The 64-bit conversion routine to convert 64-bit nsec time to a time spec. 
gives an unnormalized result if the value being converted is negative.  I 
think there are two ways to go about fixing this.  Most systems will give a 
negative remainder and so need to just normalize.  On the other hand, some 
systems will use div64 to do the division and, I think, it expects unsigned 
numbers.  The attached patch uses the conservative approach of expecting the 
div to be set up for unsigned numbers.

I came accross this when one of my tests set a time near 1 Jan 1970, i.e. it 
is a real problem.
-- 
George Anzinger   george@mvista.com
HRT (High-res-timers):  http://sourceforge.net/projects/high-res-timers/