linux-kernel - Re: [PATCH] libata: Handle bay devices in dock stations

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Message-ID: <20080609014818.GA32083@srcf.ucam.org>
Date:	Mon, 9 Jun 2008 02:48:18 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Tejun Heo <htejun@...il.com>
Cc:	Jeff Garzik <jeff@...zik.org>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, linux-acpi@...r.kernel.org,
	akpm@...ux-foundation.org
Subject: Re: [PATCH] libata: Handle bay devices in dock stations

On Mon, Jun 09, 2008 at 10:44:01AM +0900, Tejun Heo wrote:

> TF-based ATA controllers are very sensitive to how the registers are 
> accessed and sometimes lock up the whole machine when they are not happy 
> by indefinitely holding the PCI bus.  This could have been the case if 
> IOs were in flight when the dock event occurred.  Were they?

I'd stopped hal, so I can't imagine that userspace was causing any to be 
generated at that point.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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