linux-kernel - Re: [RFC] Reproducible OOM with just a few sleeps

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Message-Id: <201302242210.r1OMADAd021416@como.maths.usyd.edu.au>
Date:	Mon, 25 Feb 2013 09:10:13 +1100
From:	paul.szabo@...ney.edu.au
To:	dave@...ux.vnet.ibm.com, simon.jeons@...il.com
Cc:	695182@...s.debian.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [RFC] Reproducible OOM with just a few sleeps

Dear Simon,

> So if he config sparse memory, the issue can be solved I think.

In my config file I have:

CONFIG_HAVE_SPARSE_IRQ=y
CONFIG_SPARSE_IRQ=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_SPARSEMEM_STATIC=y
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_SPARSE_RCU_POINTER is not set

Is that sufficient for sparse memory, or should I try something else?
Or maybe, you meant that some kernel source patches might be possible
in the sparse memory code?

Thanks, Paul

Paul Szabo   psz@...hs.usyd.edu.au   http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics   University of Sydney    Australia
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