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

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]

Message-ID: <4689298B.2000407@dgreaves.com>
Date:	Mon, 02 Jul 2007 17:36:27 +0100
From:	David Greaves <david@...eaves.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
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

Rafael J. Wysocki wrote:
> 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.

Ah, right - that's uswsusp isn't it? Which isn't what I'm having problems with 
AFAIK?

My suspend procedure is:

xfs_freeze -f /scratch
sync
echo platform > /sys/power/disk
echo disk > /sys/power/state
xfs_freeze -u /scratch

Which should work (actually it should work without the sync/xfs_freeze too).

So to debug the problem I'd like to minimally extend this process rather than 
replace it with another approach.

I take it there isn't an 'echo y > /sys/power/do_image_checksum'?

David


-
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/