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Cc: stable@freebsd.org, freebsd-current@freebsd.org
Subject: Re: Still getting 'calcru: runtime went backwards'
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I'm getting a ton of them now, and i found a way to reproduce them. 
Basically i run a compile session in one terminal, say make buildkernel, 
and run top in another. As soon as i run top, the messages appear, and 
they seem to be synchronized with the refresh rate of top, 2 messages 
per refresh. This is on a 6.1-STABLE as of today.

---
calcru: negative runtime of -261273 usec for pid 12 (swi4: clock)
calcru: negative runtime of -261273 usec for pid 12 (swi4: clock)
calcru: negative runtime of -259691 usec for pid 12 (swi4: clock)
...