linux-kernel - Re: A kexec approach to hibernation

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Message-Id: <1181601870.5064.5.camel@nigel.suspend2.net>
Date:	Tue, 12 Jun 2007 08:44:29 +1000
From:	Nigel Cunningham <nigel@...el.suspend2.net>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Matthew Garrett <mjg59@...f.ucam.org>, Pavel Machek <pavel@....cz>,
	Jeremy Maitin-Shepard <jbms@....edu>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...l.org>
Subject: Re: A kexec approach to hibernation

Hi.

On Sun, 2007-06-10 at 19:02 -0700, H. Peter Anvin wrote:
> Matthew Garrett wrote:
> > No, it only supports ext2 (and reading ext3 as if it's ext2). Right now, 
> > the assumption that syncing during suspend will cause data to hit 
> > something grub can read isn't a safe one.
> 
> I brought this issue up quite a few years ago at an OLS BOF.  We pretty
> much need a "supersync" system call; you can do this by bmapping any
> file on ext3, but having something supported across filesystems would be
> good.

Sounds like a good idea to me.

Regards,

Nigel

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