From mboxrd@z Thu Jan  1 00:00:00 1970
From: Neil Brown <neilb@suse.de>
Subject: Re: Weird Issue with raid 5+0
Date: Sun, 21 Feb 2010 19:16:40 +1100
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To: chris <tknchris@gmail.com>
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On Sun, 21 Feb 2010 02:26:42 -0500
chris <tknchris@gmail.com> wrote:

> That is exactly what I didn't want to hear :( I am running
> 2.6.26-2-xen-amd64. Are you sure its a kernel problem and nothing to
> do with my chunk/block sizes? If this is a bug what versions are
> affected, I'll build a new domU kernel and see if I can get it working
> there.
> 
> - chris

I'm absolutely sure it is a kernel bug.
I have no idea what version might be affected.  Probably all, but 
as xen isn't fully in main line it isn't easy for me to explore.

I suggest you contact the xen developers (or whoever you got xen from).
I'm happy to discuss the problem with someone who knows about xen block
device access, but I don't want to go hunting to find such a person.

NeilBrown