linux-kernel - Re: ATA device reset, shoud I be concerned?

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Message-ID: <4795488E.30706@gmail.com>
Date:	Tue, 22 Jan 2008 10:36:14 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
CC:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Georgi Chulkov <g.chulkov@...obs-university.de>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	Mark Lord <liml@....ca>
Subject: Re: ATA device reset, shoud I be concerned?

Bartlomiej Zolnierkiewicz wrote:
> On Monday 21 January 2008, Tejun Heo wrote:
> 
> [...]
> 
>>> Old IDE says it works for PATA. For SATA I can see it might need more
>>> care and you might simply not be able to get the info.
>> Old IDE often locks up the machine hard after timeouts.  I'm all for
> 
> Could you point me to some bugreports?
> 
> I would like to know more about hosts/conditions for which it happens.

It's jmicron and all on-board jmicrons I have show the same problem.
Connect harddrrive to the controller and drive it via jmicron, hot plug
unplug SATA drives continuously, after a while, jmicron says it lost
interrupt and the machine locks up hard.

Thanks.

-- 
tejun
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