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

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Message-Id: <200707021712.50323.rjw@sisk.pl>
Date:	Mon, 2 Jul 2007 17:12:49 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	David Greaves <david@...eaves.com>
Cc:	Tejun Heo <htejun@...il.com>, David Chinner <dgc@....com>,
	David Robinson <zxvdr.au@...il.com>,
	LVM general discussion and development 
	<linux-lvm@...hat.com>,
	"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>,
	xfs@....sgi.com, linux-pm <linux-pm@...ts.osdl.org>,
	LinuxRaid <linux-raid@...r.kernel.org>
Subject: Re: [linux-lvm] 2.6.22-rc5 XFS fails after hibernate/resume

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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