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Date: Fri, 28 May 2010 15:09:19 +0100
From: Bruce Cran <bruce@cran.org.uk>
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To: Jeremy Chadwick <freebsd@jdc.parodius.com>
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Cc: amd64@freebsd.org, freebsd-fs@freebsd.org, Andriy Gapon <avg@icyb.net.ua>
Subject: Re: FreeBSD 8.1-Prerelease Panic amd64 w/ZFS..
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On 28/05/2010 14:45, Jeremy Chadwick wrote:
> It is?  On amd64, vm.kmem_size (not vm.kmem_size_max) is what has to be
> increased.  I can point folks to the "official" statement from pjd@ and
> some others if need be.  For a very long time I questioned this because
> for an even longer amount of time we were being told to increase
> vm.kmem_size_max.
>    

It seems the wiki should probably be updated - it still says 8.0 and 
9-CURRENT shouldn't require
tuning - http://wiki.freebsd.org/ZFSTuningGuide says:
"FreeBSD 7.2+ has improved kernel memory allocation strategy and no 
tuning may be necessary on systems with more than 2 GB of RAM."

-- 
Bruce Cran