linux-kernel - Re: A kexec approach to hibernation

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 4 Jun 2007 14:16:24 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Pavel Machek <pavel@....cz>
Cc:	Jeremy Maitin-Shepard <jbms@....edu>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...l.org>,
	Nigel Cunningham <nigel@...el.suspend2.net>
Subject: Re: A kexec approach to hibernation

On Mon, Jun 04, 2007 at 03:10:00PM +0200, Pavel Machek wrote:
> On Mon 2007-06-04 13:20:54, Matthew Garrett wrote:
> > On Mon, Jun 04, 2007 at 12:46:21PM +0200, Pavel Machek wrote:
> > 
> > > sync is perfectly safe way of telling the fs to store data on disk.
> > 
> > On disk, yes. On the filesystem, no. It's valid for the data to be left 
> > in the journal, for instance.
> 
> Yep... then grub needs to grok the journal. It does for ext3, IIRC.

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.
-- 
Matthew Garrett | mjg59@...f.ucam.org
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/