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Date: Mon, 25 Feb 2002 15:06:03 -0500 (EST)
From: Bill Davidsen <davidsen@tmr.com>
To: Cesar Suga <sartre@linuxbr.com>
cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: HPT366: DMA errors?
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On Thu, 21 Feb 2002, Cesar Suga wrote:

> 	And, in kernel messages, whilst doing hdparm -tT /dev/hde3:
> 
> ->	invalidate: busy buffer
> 	(from fs/buffer.c)
> 
> 	(yes, it is wrong to use hde3, but when I use hde, but whatever;
> using hda3 or hda did not matter when I used this *same* HDD with normal
> IDE cable (not using HPT366))
> 
> 	I am not using *any* special features (untuned HDD), drive was set
> to DMA mode 4 at the HPT BIOS.

  My though would be that when something is working right, the first step
is to check that you are doing things in a known safe way. Therefore I
would (a) use /dev/hde, and (b) set -X34 with hdparm.

  I do those things, I have two internal systems working and two at
client sites, which I assume are working since they aren't teling me
otherwise.

-- 
bill davidsen <davidsen@tmr.com>
  CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.

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