linux-kernel - Re: 2.6.23-mm1

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Message-Id: <20071013111853.7e67c6c3.akpm@linux-foundation.org>
Date:	Sat, 13 Oct 2007 11:18:53 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Torsten Kaiser" <just.for.lkml@...glemail.com>
Cc:	"Jeff Garzik" <jeff@...zik.org>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, "Kuan Luo" <kluo@...dia.com>,
	"Peer Chen" <pchen@...dia.com>
Subject: Re: 2.6.23-mm1

On Sat, 13 Oct 2007 20:05:19 +0200 "Torsten Kaiser" <just.for.lkml@...glemail.com> wrote:

> The only thing I noted during load testing (updating Gentoo ==
> compiling and installing) was, that there seems to be memory leak.
> After ~2h 2.5 of my 4Gb where gone. But there where to many things
> going on to pinpoint it... (NFSv4 over eth1394?)

Please send /proc/meminfo and /proc/slabinfo after the leak has been
happening for a while.

Sometimes `echo m > /proc/sysrq_trigger ; dmesg -s 1000000' will
provide useful info.

The page-owner code can pinpoint a leak source.  See
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.23/2.6.23-mm1/broken-out/page-owner-tracking-leak-detector.patch

Enable CONFIG_DEBUG_SLAB_LEAK, check out /proc/slab_allocators
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