Re: Linux2.6 overcommit behaviour

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Linux2.6 overcommit behaviour
Date: 2003-09-01 02:40:33
Message-ID: 200309010240.h812eXt29901@candle.pha.pa.us
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Andrew Dunstan wrote:
> It sends a SIGKILL (9) unless the process is doing raw io, in which case
> it sends SIGTERM (15). It can't really wait - at this stage the kernel
> is in trouble - it can either kill processes or panic. The whole idea of
> strict accounting is not to let it get to this stage in the first place.
>
> see mm/oom_kill.c

So it brings down all the backends --- I see. :-(

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