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Date:	Tue, 06 Mar 2007 09:09:30 -0800
From:	"Kok, Auke" <auke-jan.h.kok@...el.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"Michael S. Tsirkin" <mst@...lanox.co.il>,
	Pavel Machek <pavel@....cz>,
	Jens Axboe <jens.axboe@...cle.com>,
	Adrian Bunk <bunk@...sta.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-pm@...ts.osdl.org,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	Jeff Garzik <jgarzik@...ox.com>
Subject: Re: SATA resume slowness, e1000 MSI warning

Linus Torvalds wrote:
> 
> On Tue, 6 Mar 2007, Thomas Gleixner wrote:
>> SATA has another nice feature. Somehow there is an interrupt pending on
>> the SATA controller, which comes in somewhere in the middle of resume.
>> If it happens before the SATA code resumed, the SATA code ignores the
>> interrupt and the interrupt is disabled due to "nobody cared", which in
>> turn prevents SATA to ever become functional again. >

> And if you don't want to do any of these things (or are unable to, because 
> of some ordering constraint or bad design), then you simply need to 
> unregister and re-register the interrupt handler over sleep.
> 
>> Any idea on that one ?
> 
> Jeff, Auke, does this ring any bells?

For the e1000 issue, the problem is solved with Eric Biederman's 3-patch msi 
cleanups. You should have another message in your mailbox confirming that I 
tested his patches and the MSI warning for e1000 suspend-resume is gone with them.

Cheers,

Auke
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