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I'm experiencing poor performance on an old FreeBSD system and the only anomaly I see so far are syslog messages of the form:

Jul  1 12:10:50 myserverXXX kernel: 16.0ccdd219377c0d80 too long
Jul  1 12:11:06 myserverXXX kernel: 15.eb6402ce33a49600 too short
Jul  1 12:11:23 myserverXXX kernel: 16.23e50a5d764d9b80 too long
Jul  1 12:11:38 myserverXXX kernel: 15.ea4694f5f1d81d00 too short

These seem to be pretty close to four per minute but not precisely at 15 second intervals.

This sort of message should win a special prize for being uniquely useless as a search phrase.

What does it mean? Is it likely related to the source of my performance issues? What should I do to mitigate this?

(Can we create a "mysterious-messages" tag for, umm, mysterious syslog messages, error or warning messages etc?)

share|improve this question
No, we cannot create a mysterious-messages tag. This would be horribly abused. – voretaq7 Jul 1 '13 at 19:41
What does this server do? It doesn't happen to have wireless network controller(s) does it? – Chris S Jul 1 '13 at 19:48
These appear to be a variant of the old t_delta errors which can usually be safely ignored. They come up when the kernel timers are set to a very low frequency (or on VMs that are starved for CPU time). You say you're experiencing poor performance, and I assume that's a new condition, so tell us: What Changed? :-) – voretaq7 Jul 1 '13 at 19:49
I've now rebooted that system and the service seems to be nominal again. It's running a proprietary service. We have hundreds of other nodes running the same OS/software combination and this is the only machine we've seen this on thus far. We'll look for any other symptoms. – Jim Dennis Jul 1 '13 at 20:28

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