linux-kernel - How to immunize a process from the OOM Killer

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Message-ID: <d0626390910291201m6e8121abq831867715f5d7d5@mail.gmail.com>
Date:	Thu, 29 Oct 2009 15:01:22 -0400
From:	Juan Miscaro <jmiscaro@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: How to immunize a process from the OOM Killer

Hi, I'm running 2.6.24 on Ubuntu.

I've got a OOM Killer gone wild.  I have plenty of free memory (over
40 GB) and lots of processes are being murdered.  Anyway, I would like
to first prevent a few processes from being killed in the hopes of
buying me time (users can work) to discover why the killer is being
invoked in the first place.

I've read in a few places [1] that in order to immunize a process you
need to modify the value of /proc/PID/oom_adj.  Thing is, such files
cannot be edited directly.  How do I achieve my goal?

Thank you,

--
jm

[1]
http://linux-mm.org/OOM_Killer
http://lwn.net/Articles/317814/
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