Very strange vmstat issue

From: John Malick (john@starinc.com)
Date: Thu Apr 07 2005 - 10:12:33 EDT


Running Solaris 8 with latest recommended patches from 1 month ago.

Also running Veritas VM 3.5 and Veritas FileSystem 3.5.

Vmstat's "b" column, for kernel threads blocked for resources keeps,
keeps climbing.

Below is just one line of many:

r b w swap free re mf pi po fr de sr s0 sd sd
1 38877704 0 4857296 1137056 262 1380 0 4 4 0 0 0 0 0 0

As you can see, the 'b' column is currently 38+ million and climbing.
What is more strange is that I would expect these numbers to manifest
themselves as a system that would be completely unusable. The fact is
that the system does not seem to be taking any kind of performance hit
and is running along great.

Obviously this number is incorrect but I can't find anything indicating
why this number would be so high and growing.

I have an identical system (V480) running the same version of Solaris
and Veritas and with exactly the same patch levels which is not showing
this strange behaviour.

Strange?

Any ideas?

Thanks

-- 
John Malick
Star Systems Engineering
232-236 West Market St.
York, PA. 17401
john@starinc.com    www.starinc.com
ph:717-854-5911     fx:717-852-9421
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