Message-ID: <44605396.40507@shadowen.org>
Date: Tue, 09 May 2006 09:32:22 +0100
From: Andy Whitcroft <apw@shadowen.org>
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To: Michael Ellerman <michael@ellerman.id.au>
CC: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org,
       haveblue@us.ibm.com, kravetz@us.ibm.com
Subject: Re: [PATCH] SPARSEMEM + NUMA can't handle unaligned memory regions?
References: <20060509070343.57853679F2@ozlabs.org>
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Michael Ellerman wrote:
> I can't believe I'm the first person to see this, so I imagine I'm missing
> something. Perhaps it's only an issue on powerpc?
> 
> I have a machine with some memory at 0, then a hole, and then some more memory
> which doesn't start on a section boundary. This is causing the following
> crash:
> 
> add_region nid 1 start_pfn 0x77c0 pages 0x840
> add_region nid 1 start_pfn 0x0 pages 0x6000

Nasty, could you send me your full boot log and your config and I'll
have a look at it.  I can say this code has been booted on a lot of
power boxes and I've never seen that before!  :)

Anyhow, will take a look and see if we can avoid iterating over the area
to find it.

-apw
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