From: "Andries E. Brouwer" <Andries.Brouwer@cwi.nl>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Frans Pop <elendil@planet.nl>,
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] ide: add "ignore_hpa" module parameter
Date: Tue, 26 May 2009 20:08:21 +0200 [thread overview]
Message-ID: <20090526180821.GB13276@ub> (raw)
In-Reply-To: <20090526140132.19e8bc13@lxorguk.ukuu.org.uk>
On Tue, May 26, 2009 at 02:01:32PM +0100, Alan Cox wrote:
> > Naive thought: wouldn't it be possible to check whether a partition
> > overlaps the HPA boundary and warn or even bug out in that case?
>
> No - believe me we all thought about that. The PC partition format has
> starts but not ends so you need detailed internal file system knowledge
> to play guessing games (which thus needs to be user space). Some of the
> non PC formats use the middle or end of disk so if you don't know the
> size you can't *find* the partition data.
>
> Alan
Hi Alan,
Probably I am missing some context, but the above seems to be
a false statement. The PC partition format does give you
start and size, and no filesystem knowledge is needed to
find out where a partition ends.
Andries
next prev parent reply other threads:[~2009-05-26 18:08 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-25 21:44 [PATCH 1/3] ide: add "ignore_hpa" module parameter Bartlomiej Zolnierkiewicz
2009-05-25 22:27 ` Frans Pop
2009-05-25 22:36 ` Alan Cox
2009-05-25 23:06 ` Frans Pop
2009-05-26 12:23 ` Bartlomiej Zolnierkiewicz
2009-05-26 12:53 ` Frans Pop
2009-05-26 13:01 ` Alan Cox
2009-05-26 18:08 ` Andries E. Brouwer [this message]
2009-05-27 9:49 ` Alan Cox
2009-05-26 17:32 ` Bartlomiej Zolnierkiewicz
2009-05-26 23:49 ` Robert Hancock
2009-05-26 12:53 ` Alan Cox
2009-05-26 17:15 ` Bartlomiej Zolnierkiewicz
2009-05-27 10:38 ` Alan Cox
2009-05-27 11:41 ` Bartlomiej Zolnierkiewicz
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