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Message-ID: <44848283.3000207@google.com>
Date: Mon, 05 Jun 2006 12:14:11 -0700
From: Martin Bligh <mbligh@google.com>
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To: Christoph Lameter <clameter@sgi.com>
CC: Arjan van de Ven <arjan@infradead.org>, Andy Whitcroft <apw@shadowen.org>,
        "Martin J. Bligh" <mbligh@mbligh.org>, Andrew Morton <akpm@osdl.org>,
        linux-kernel@vger.kernel.org, ak@suse.de,
        Hugh Dickins <hugh@veritas.com>
Subject: Re: 2.6.17-rc5-mm1
References: <447DEF49.9070401@google.com>  <20060531140652.054e2e45.akpm@osdl.org> <447E093B.7020107@mbligh.org>  <20060531144310.7aa0e0ff.akpm@osdl.org> <447E104B.6040007@mbligh.org>  <447F1702.3090405@shadowen.org> <44842C01.2050604@shadowen.org>  <Pine.LNX.4.64.0606051137400.17951@schroedinger.engr.sgi.com> <1149533399.3111.120.camel@laptopd505.fenrus.org> <Pine.LNX.4.64.0606051151150.18056@schroedinger.engr.sgi.com>
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Christoph Lameter wrote:
> On Mon, 5 Jun 2006, Arjan van de Ven wrote:
> 
> 
>>>Swap migration uses the two higest numbers of swap types (30 and 31). If 
>>>those are generated by something then we could have trouble but I do not 
>>>see how the patches could hurt otherwise.
>>
>>ltp has many weird swap tests
>>
>>(and I assume you're not talking about the pte's that are swapped, but
>>only the file type in the swap signature; since the higher bits in the
>>pte are used by the non-linear vma feature afaik)
> 
> 
> How was the kernel compiled? It must have been running on a NUMA system 
> for page migration to be enabled. Otherwise the fallback definitions in 
> include/linux/swapops.h should remove all the swap migration entry 
> handling.

x86_64 NUMA. Config is here:
http://ftp.kernel.org/pub/linux/kernel/people/mbligh/config/abat/amd64

mtest01 was what killed it, IIRC.