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Date: Mon, 20 Jun 2005 12:12:06 +0100
From: Tony Byrne <freebsd-current@byrnehq.com>
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To: Bob Bishop <rb@gid.co.uk>
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Cc: freebsd-stable@freebsd.org, Tony Byrne <freebsd@byrnehq.com>
Subject: Re[3]: ATA_DMA errors (and fs corruption!)
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Hello Bob,


>>can be hardware reasons for timeouts such as a dying disk or cable,
>>but I think we've eliminated these in our case. [etc]

BB> Don't ignore the possibility of failing controller hardware. We had
BB> comparable mysterious problems on a client system, causing a lot of
BB> head-scratching. Eventually the failure went hard and we had to replace the
BB> motherboard.

I hear ya!  However, moving back to an older kernel changes the
severity of the problem from a timeout every 2 to three minutes during
heavy activity to about 4 or 5 in a 24 hour period.  That doesn't
sound like hardware to me.

Regards,

Tony.

-- 
Tony Byrne