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Re: [linux-lvm] 2.6.22-rc5 XFS fails after hibernate/resume

To: David Greaves <david@xxxxxxxxxxxx>
Subject: Re: [linux-lvm] 2.6.22-rc5 XFS fails after hibernate/resume
From: "Rafael J. Wysocki" <rjw@xxxxxxx>
Date: Mon, 2 Jul 2007 17:12:49 +0200
Cc: Tejun Heo <htejun@xxxxxxxxx>, David Chinner <dgc@xxxxxxx>, David Robinson <zxvdr.au@xxxxxxxxx>, LVM general discussion and development <linux-lvm@xxxxxxxxxx>, "'linux-kernel@xxxxxxxxxxxxxxx'" <linux-kernel@xxxxxxxxxxxxxxx>, xfs@xxxxxxxxxxx, linux-pm <linux-pm@xxxxxxxxxxxxxx>, LinuxRaid <linux-raid@xxxxxxxxxxxxxxx>
In-reply-to: <46890C7A.5040008@dgreaves.com>
References: <46744065.6060605@dgreaves.com> <200707021608.56616.rjw@sisk.pl> <46890C7A.5040008@dgreaves.com>
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On Monday, 2 July 2007 16:32, David Greaves wrote:
> Rafael J. Wysocki wrote:
> > On Monday, 2 July 2007 12:56, Tejun Heo wrote:
> >> David Greaves wrote:
> >>>> Tejun Heo wrote:
> >>>>> It's really weird tho.  The PHY RDY status changed events are coming
> >>>>> from the device which is NOT used while resuming
> >>> There is an obvious problem there though Tejun (the errors even when sda
> >>> isn't involved in the OS boot) - can I start another thread about that
> >>> issue/bug later? I need to reshuffle partitions so I'd rather get the
> >>> hibernate working first and then go back to it if that's OK?
> >> Yeah, sure.  The problem is that we don't know whether or how those two
> >> are related.  It would be great if there's a way to verify memory image
> >> read from hibernation is intact.  Rafael, any ideas?
> > 
> > Well, s2disk has an option to compute an MD5 checksum of the image during
> > the hibernation and verify it while reading the image.
> (Assuming you mean the mainline version)
> 
> Sounds like a good think to try next...
> Couldn't see anything on this in ../Documentation/power/*
> How do I enable it?

Add 'compute checksum = y' to the s2disk's configuration file.

Greetings,
Rafael


-- 
"Premature optimization is the root of all evil." - Donald Knuth


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