From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Andrew Morton <akpm@osdl.org>
Cc: apw@shadowen.org, mel@csn.ul.ie, stable@kernel.org, linux-mm@kvack.org
Subject: Re: [patch 2/2] mm: handle unaligned zones
Date: Sun, 21 May 2006 21:44:17 +1000 [thread overview]
Message-ID: <44705291.9070105@yahoo.com.au> (raw)
In-Reply-To: <20060521035906.3a9997b0.akpm@osdl.org>
Andrew Morton wrote:
> How about just throwing the pages away? It sounds like a pretty rare
> problem.
Well that's what many architectures will end up doing, yes. But on
small or embedded platforms, 4MB - 1 is a whole lot of memory to be
throwing away.
Also, I'm not sure it is something we can be doing in generic code,
because some architectures apparently have very strange zone setups
(eg. zones from several pages interleaved within a single zone's
->spanned_pages). So it doesn't sound like a simple matter of trying
to override the zones' intervals.
--
SUSE Labs, Novell Inc.
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next prev parent reply other threads:[~2006-05-21 11:44 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-21 8:22 [patch 1/2] mm: detect bad zones Nick Piggin
2006-05-21 8:22 ` [patch 2/2] mm: handle unaligned zones Nick Piggin
2006-05-21 9:19 ` Andrew Morton
2006-05-21 10:31 ` Nick Piggin
2006-05-21 10:59 ` Andrew Morton
2006-05-21 11:44 ` Nick Piggin [this message]
2006-05-21 11:52 ` Nick Piggin
2006-05-22 9:24 ` Mel Gorman
2006-05-22 9:28 ` Mel Gorman
2006-05-22 9:06 ` Mel Gorman
2006-05-22 9:51 ` Nick Piggin
2006-05-21 11:53 ` Nick Piggin
2006-05-22 8:18 ` Andy Whitcroft
2006-05-22 9:37 ` Nick Piggin
2006-05-22 9:52 ` [PATCH 0/2] Zone boundary alignment fixes, default configuration Andy Whitcroft
2006-05-22 9:53 ` [PATCH 1/2] zone allow unaligned zone boundaries add configuration Andy Whitcroft
2006-05-22 9:53 ` [PATCH 2/2] x86 add zone alignment qualifier Andy Whitcroft
2006-05-25 11:19 ` [PATCH 0/2] Zone boundary alignment fixes, default configuration Andy Whitcroft
2006-05-31 0:13 ` [stable] " Chris Wright
2006-05-31 11:41 ` Nick Piggin
2006-05-31 12:08 ` Andy Whitcroft
2006-05-31 17:42 ` Greg KH
2006-05-31 17:16 ` Andy Whitcroft
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