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Date: Sun, 18 Aug 2002 10:50:41 -0700
To: Ed Sweetman <safemode@speakeasy.net>, linux-kernel@vger.kernel.org
From: Jonathan Lundell <linux@lundell-bros.com>
Subject: Re: cerberus errors on 2.4.19 (ide dma related)
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At 3:26 AM -0400 8/18/02, Ed Sweetman wrote:
>It appears then that there are some DMA issues with the promise 
>controller i have with the driver.  My swap used to be on the drive 
>on the promise controller before which would explain fs corruption 
>on both drives (swap cached and such).

FWIW, this is a semi-well-known phenomenon with the IDE controller in 
the ServerWorks OSB4 south bridge. As I recall from our testing, a 
word appears to be dropped in the DMA transfer to the disk. We found 
that both PIO and multi-word DMA worked OK.

What's your chipset?
-- 
/Jonathan Lundell.
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