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Date: Thu, 1 Mar 2012 18:28:26 +0400
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: Peter Jeremy <peterjeremy@acm.org>
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Cc: freebsd-fs@freebsd.org, Luke Marsden <luke-lists@hybrid-logic.co.uk>,
	"freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org>,
	team@hybrid-logic.co.uk
Subject: Re: Another ZFS ARC memory question
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On Tue, Feb 28, 2012 at 05:14:37AM +1100, Peter Jeremy wrote:

> >      * what is the community's advice for production machines running
> >        ZFS on FreeBSD, is manually limiting the ARC cache (to ensure
> >        that there's enough actually free memory to handle a spike in
> >        application memory usage) the best solution to this
> >        spike-in-memory-means-crash problem?
> 
> Are you swapping onto a ZFS vdev?  If so, change back to a raw (or
> geom) device - swapping to ZFS is known to be problematic.  If you

I see kernel stuck when swapping to ZFS. This is only known problem?