phk 1ca888b5fd Make timecounters more resistant to badly behaved SW/HW which locks
out interrupts for too long.  If you still see the "calcru: negative
time..." message you can increase NTIMECOUNTER (see LINT).

Sideeffect is that a timecounter is required to not wrap around in
less than (1 + delta) seconds instead of the (1/hz + delta) required
until now.

Many thanks to: msmith, wpaul, wosch & bde
1998-11-23 09:59:02 +00:00
..