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Date: Wed, 12 May 2010 17:25:22 -0300 (ADT)
From: Andrew Hamilton-Wright <AHamiltonWright@MtA.ca>
To: Mike Tancsa <mike@sentex.net>
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Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
Subject: Re: Long I/O pauses on same mass storage
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Sorry to follow myself up . . .

On Wed, 12 May 2010, A. Wright wrote:

> I just noticed, however, the following two interesting lines that
> /var/log/messages seems to have acquired:
> 	May 12 15:44:00 qemg kernel: ad8: FAILURE - SMART status=51<READY,DSC,ERROR> error=4<ABORTED>
> 	May 12 16:05:27 qemg kernel: swap_pager: indefinite wait buffer: bufobj: 0, blkno: 294, size: 8192
>

It turns out that dmesg output has a number of these, scattered over the
last day; there were a bunch at 02:30 this morning; which at least
indicates that the SMART logging has triggered this behaviour.

A.