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Subject: Re: swsusp: don't eat ide disks
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Pavel Machek <pavel@ucw.cz>
Cc: benh@kernel.crashing.org, Linus Torvalds <torvalds@transmeta.com>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Sun, 2002-11-03 at 20:12, Pavel Machek wrote:
> > 		Throw out the pages we can evict
> 
> ...DMA from disk may be still running here...

Only if a request is still active and therfore the queue is not quiesced

> ...and at resume you find out that your memory is not consistent
> because DMA was still running when you were doing copy.

I can see how that can be a problem for some other things but not block
devices.

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