[PLUG] followup note on nanosleep()

[website reader]

I carefully added extra error capture code to the timestamping
routine, nanosleep is always returning with a good "0" status.  What
is unusual is that sometimes it doesn't return when it is supposed to,
the system seems to place it on the shelf for awhile, then eventually
get back to it, sometimes 0.5 seconds later than it is supposed to.

Has anyone come across this problem before?  I am running 12 cores 64
bit smp, Ubuntu 12.04.2 LTS.

Randall