From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <htejun@gmail.com>
Subject: Re: Warnings on shutdown (Debian Etch and Kernel 2.6.22.9)
Date: Wed, 24 Oct 2007 22:39:29 +0900
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To: "Renato S. Yamane" <renatoyamane@mandic.com.br>
Cc: Jim Paris <jim@jtan.com>, Jeff Garzik <jeff@garzik.org>, debian-devel@lists.debian.org, linux-ide@vger.kernel.org, miquels@cistron.nl

Renato S. Yamane wrote:
> Jim Paris escreveu:
>> Tejun Heo wrote:
>>> Ehh... I meant something along the line of...
>>>
>>> "Info for Debian VERSION users : if you see this warning there are
>>> several solutions... blah blah".
>>
>> For Debian, I don't think there are any complete solutions yet.
>> The related bug is  =20
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D426224
>=20
> I think that we can fix this if someone can answer this:
>=20
> $ man halt
> "-h flag: This is important for IDE drives, since the kernel doesn=92=
t=20
> flush the write cache itself before power-off.."
>=20
> How can I know if kernel write cache itself? :-)

Kernel has been flushing write cache for many many years now.  Man page=
=20
needs update.  Also, flushing cache from halt is okay.  What's hurting=20
is spinning down the drive from halt.

--=20
tejun