linux-kernel - Re: sata_mv port lockup on hotplug (kernel 2.6.38.2)

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Date:	Mon, 30 May 2011 22:04:58 -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 11-05-30 09:07 AM, Bruce Stenning wrote:
>>> 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.
> 
> Having now tested with Tejun's two patches and without the spinlock in
> mv_set_main_irq_mask for a reasonable time, the hotplug seems to be very
> reliable.  So I think it's probably best to leave the spinlock out and
> continue to observe the behaviour with further testing.

Peachy.  I'll have another look at some point -- I think I thought
the spinlock was still needed for ATAPI under some conditions.
Gotta look closer to make sure.

Thanks.
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