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Message-ID: <4DDD823F.5090904@teksavvy.com>
Date: Wed, 25 May 2011 18:27:11 -0400
From: Mark Lord <kernel@...savvy.com>
To: Bruce Stenning <b.stenning@...igovision.com>
CC: Tejun Heo <htejun@...il.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>
Subject: Re: sata_mv port lockup on hotplug (kernel 2.6.38.2)
On 11-05-25 09:36 AM, Bruce Stenning wrote:
>> This is a different issue. libata EH plugs the port if reset fails
>> repeatedly. This behavior was implemented to avoid causing continuous
>> resets on a port in case it has flaky PHY state reporting; however, it
>> seems to cause more trouble than fixing issues - ie. plugging in a
>> broken device may end up plugging the port even after the offending
>> device is removed until manual rescan or reboot. I've been pondering
>> about changing the behavior like the following.
>
> Thanks for the explanation, Tejun, and for sending those changes upstream.
> I shall incorporate these patches into my kernel and keep you informed as
> to how they behave.
>
> Mark, did you get a chance to clean up the sata_mv spinlock addition in
> mv_set_main_irq_mask?
Not yet. I've been waiting to hear back from you as to
whether they visibly fix anything or not.
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