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Date: Wed, 16 Aug 2006 16:30:18 +0100
From: "James Seward" <jamesoff@gmail.com>
To: Vlad <marchenko@gmail.com>
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References: <cd70c6810608160825u2b55103ey240ce0e803725c42@mail.gmail.com>
Cc: freebsd-stable@freebsd.org
Subject: Re: 6.1-RELEASE: TIMEOUT - WRITE_DMA retrying
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On 8/16/06, Vlad <marchenko@gmail.com> wrote:
> I get this type of messages in on my FreeBSD.
> ad4: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=70938623
> Under steady IO load it panics, that started when we changed SATA
> controller (FreeBSD detects it as SiI 3512). I've tried to switch
> ports, cable, move card into a different PCI slot, disable ata dma in
> /boot/loader.conf - nothing helps.

I had similar problems under 5.x and 6.x with a SI3112. My testing and
investigations back then suggested that some combinations of hardware
and the SI3112 just "don't get along" and I solved it by getting rid
of it.

/JMS