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Date: Wed, 22 Mar 2006 23:38:54 -0600
To: Haren Myneni <haren@us.ibm.com>
Subject: Re: [PATCH] kdump: Fix for machine checkstop on DMA fault
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From: Olof Johansson <olof@lixom.net>
Cc: linuxppc-dev@ozlabs.org, ellerman@au1.ibm.com,
	Paul Mackerras <paulus@samba.org>,
	Milton Miller <miltonm@bga.com>, Olaf Hering <olh@suse.de>
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On Wed, Mar 22, 2006 at 08:30:26PM -0800, Haren Myneni wrote:
> Paul, If you are OK with this fix, please send it upstream.
> 
> Thanks
> Haren
> 
> - Some machines checkstop on dma protection fault for ongoing DMA left 
> in the first kernel. Since, we do not shutdown devices before the kdump 
> boot, let them continue DMA to old kernel space.

How is this solved for regular kexec, doesn't the same problem exist
there?


-Olof