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Date: Fri, 28 Feb 2003 21:30:20 +0800
From: "rain.wang" <rain.wang@mic.com.tw>
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
CC: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: system hang on HDIO_DRIVE_RESET! help!
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Alan Cox wrote:

> On Fri, 2003-02-28 at 05:04, rain.wang wrote:
> > > Does this still occur on 2.4.21pre. It should be fixed now
> >
> > I had tested 'hdparm -w /dev/hda' under 2.4.21-pre4, but problem sill exist,
> >
> > just same message as in 2.4.20.
>
> What controller are you using and I'll look into it a bit further

Intel 82801AA host controller,  and I found when I disabled DMA before doing
drive reset, system wouldn't hang at most time.  It seemed not tight related with

host chip, does it?

rain.w