From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <htejun@gmail.com>
Subject: Re: Disk spin down issue on shut down/suspend to disk
Date: Thu, 09 Aug 2007 01:20:24 +0900
Message-ID: <46B9ED48.1010901@gmail.com>
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To: Mark Lord <liml@rtr.ca>
Cc: Michael Sedkowski <sedmich@gmail.com>, trenn@suse.de, Robert Hancock <hancockr@shaw.ca>, "Rafael J. Wysocki" <rjw@sisk.pl>, Henrique de Moraes Holschuh <hmh@hmh.eng.br>, linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, linux-acpi@vger.kernel.org
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Mark Lord wrote:
> Further to this, if I have an active-writer running at the time of suspend,
> then even my scripted "sleep 1" is not good enough, as additional writes
> are still happening before/after the flush.
> 
> Now I'll reboot and try it with the "sleep 1" hardcoded inside
> sd_suspend().

Hmmm... queue quiescing might be broken.  Can you verify there's no
command issued between STANDBYNOW1 and suspending?

-- 
tejun