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Re: [Xen-ia64-devel] Unaligned access when doing things through ssh sess

from [Tristan Gingold]

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To:	Piotr Siwczak <psiwczak@xxxxxxxxxxxxx>, xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
Subject:	Re: [Xen-ia64-devel] Unaligned access when doing things through ssh session
From:	Tristan Gingold <Tristan.Gingold@xxxxxxxx>
Date:	Thu, 31 Aug 2006 16:57:04 +0200
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Le Jeudi 31 Août 2006 16:42, Piotr Siwczak a écrit :
> Hi,
>
> For several hours I've been tracking this problem with no luck. I manage
> to create and successfully boot domU no HP rx2600 Itanium machine.
> When I do things through system console (attached via "xm console
> <dom_id>"), the system runs smoothly. On the other hand, when I attach
> through ssh, then many "kernel unaligned access" messages appear on dom0
> system and domU slows down when I enter commands via ssh session.
> Anyone knows reason for this problem?
Yes.

This is due to unaligned memory accesses in the kernel network code.
The issue is not really xen-related and until now nobody has tried to fix this 
issue.  Unfortunatly it doesn't seem trivial.

Tristan.

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