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Date: Wed, 15 Sep 2004 01:11:41 -0400 (EDT)
From: "Mike Jakubik" <mikej@rogers.com>
To: "FUJITA Kazutoshi" <fujita@soum.co.jp>
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cc: freebsd-current@freebsd.org
Subject: Re: ad0: TIMEOUT - READ_DMA retrying (2 retries left) LBA=207594611
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FUJITA Kazutoshi said:

> Hi,
>
> My 6.0-CURRENT box says, such as
>
> ad0: TIMEOUT - READ_DMA retrying (2 retries left) LBA=207594611
> ad0: WARNING - READ_DMA no interrupt but good status
>
> I replaced the ad0 with brand-new HDD, but I still got same messages.
>
> The box has 3 HDDs(ad0,ad1,ad3) and DVD(acd0) drive, but the messages
> comes only from ad0.
>
> What is happening?
> Cable problem or ATA controller problem?

"Me too!" I belive this is a problem in the -current code, as my box has
been running for years with no problems, untill recently. Here is my info:

---

Sep 13 03:01:11 fbsd kernel: ad0: TIMEOUT - READ_DMA retrying (2 retries
left) LBA=56510247
Sep 13 03:01:11 fbsd kernel: ad0: WARNING - READ_DMA no interrupt but good
status
ep 14 00:05:45 fbsd kernel: ad2: TIMEOUT - READ_DMA retrying (2 retries
left) LBA=94967007
Sep 14 00:06:16 fbsd kernel: ad2: WARNING - removed from configuration

After this i could no longer access ad2, and i had to reboot. The reboot
was unable to fully sync the disks, and ad0 had to be fscked on restart.

I am running: FreeBSD 6.0-CURRENT #0: Thu Sep  9 18:56:56 EDT 2004

On a single amd athlon, asus a7v133 mb. Generic kernel - devices i dont have.