On Tue, 19 Sep 2000, Andrey A. Chernov wrote:

> With very latest kernel I got lots of
> microuptime() went backwards (1.3624050 -> 1.998840)
> messages just before
> Mounting root from ufs:/dev/da0s1a

It really does go backwards.  This is caused by the giant lock preventing
the clock interrupt task from running soon enough.  The giant lock can
also prevent the clock interrupt task from running often enough even
after booting.  E.g., "dd if=/dev/random of=/dev/null bs=large" does
several bad things.


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