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From: Andrew Morton <akpm@osdl.org>
To: ncunningham@users.sourceforge.net
Cc: john@grabjohn.com, linux-kernel@vger.kernel.org
Subject: Re: PATCH: Shutdown IDE before powering off.
Date: Thu, 22 Jan 2004 00:45:54 -0800	[thread overview]
Message-ID: <20040122004554.26536158.akpm@osdl.org> (raw)
In-Reply-To: <1074759964.12536.65.camel@laptop-linux>

Nigel Cunningham <ncunningham@users.sourceforge.net> wrote:
>
> Hi.
> 
> On Thu, 2004-01-22 at 21:13, John Bradford wrote:
> > > This spins down the disk(s) when you're just doing do a reboot.  That's
> > > fairly irritating and could affect reboot times if one has many disks.
> > 
> > I think it is an attempt to force some broken drives to flush their
> > cache, but I wonder whether it will simply move the problem from one
> > set of broken drives to another :-).
> 
> Yes, they were trying to get caches flushed. If this attempt is
> misguided, that's fine. Is there a better way?

A couple of thoughts come to mind:

a) Don't do it if the user typed reboot - only do it if we're powering down.

b) Try to do a cache flush instead.  If that fails (do we know?) then
   power down the disk instead.


  reply	other threads:[~2004-01-22  8:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-22  1:42 PATCH: Shutdown IDE before powering off Nigel Cunningham
2004-01-22  7:49 ` Andrew Morton
2004-01-22  8:13   ` John Bradford
2004-01-22  8:26     ` Nigel Cunningham
2004-01-22  8:45       ` Andrew Morton [this message]
2004-01-22  9:10         ` Nigel Cunningham
2004-01-22 16:02         ` Jeff Garzik
2004-01-22 17:13           ` Bartlomiej Zolnierkiewicz
2004-01-22 10:08       ` John Bradford
2004-01-22 19:19     ` James H. Cloos Jr.
2004-01-22 19:36       ` Nigel Cunningham
2004-01-22 19:52         ` James H. Cloos Jr.
2004-01-22 21:07       ` Jeff Garzik
     [not found] <1gC8S-6UB-5@gated-at.bofh.it>
     [not found] ` <1gIHq-3JU-23@gated-at.bofh.it>
     [not found]   ` <1gPzb-1OM-17@gated-at.bofh.it>
     [not found]     ` <1gQET-2Qn-9@gated-at.bofh.it>
2004-03-11 21:46       ` Karol Kozimor

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