linux-kernel - Re: Out of memory on 3.5 kernels

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Message-ID: <20121003212311.GA14018@schottelius.org>
Date:	Wed, 3 Oct 2012 23:23:11 +0200
From:	Nico Schottelius <nico-kernel20120920@...ottelius.org>
To:	Nico Schottelius <nico-kernel20120920@...ottelius.org>,
	David Rientjes <rientjes@...gle.com>,
	Arend van Spriel <arend@...adcom.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	Dave Kleikamp <shaggy@...nel.org>,
	jfs-discussion@...ts.sourceforge.net
Subject: Re: Out of memory on 3.5 kernels

Hello,

does anyone of you have a clue so far what may be causing the huge
slab usage?

I've just found an interesting detail: umounting and cryptsetup
luksClosing frees up the used memory (not sure which one was freeing
up)

Attached are dmesg, slabtop output during the backup and after umounting.

Cheers,

Nico


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View attachment "dmesg" of type "text/plain" (491902 bytes)

View attachment "slabtop" of type "text/plain" (2012 bytes)

View attachment "slabtop-post-umount" of type "text/plain" (2008 bytes)