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From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Out of memory, but no OOM Killer? (2.6.9-ac11)
Date: Sat, 27 Nov 2004 10:56:58 +1100	[thread overview]
Message-ID: <41A7C2CA.1030008@yahoo.com.au> (raw)
In-Reply-To: <20041126224722.GK30987@charite.de>

Ralf Hildebrandt wrote:
> rsync seems to want lots of memory, yet the OOM killer doesn't strike.
> Subsequently, that machine died an ugly death until delivered by a
> power-cycle.
> 
> Why doesn't the OOM killer reap rsync?

This could be the problem where fragmented memory causes atomic higher
order allocations to fail, for which there is a fix in -mm, which should
make its way into 2.6.11.

Also, the increased atomic memory reserves in current 2.6-bk should
alleviate the problem.

As a temporary workaround, you can increase /proc/sys/vm/min_free_kbytes

BTW. what does `free` say when the allocation failures are happening?

  reply	other threads:[~2004-11-27  0:05 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-26 22:47 Out of memory, but no OOM Killer? (2.6.9-ac11) Ralf Hildebrandt
2004-11-26 23:56 ` Nick Piggin [this message]
2004-11-27  0:33   ` Ralf Hildebrandt
2004-11-27  1:10     ` Nick Piggin
2004-11-27  8:03       ` Ralf Hildebrandt
2004-11-28 17:29 ` Alan Cox

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