Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754297Ab1DVDDa (ORCPT ); Thu, 21 Apr 2011 23:03:30 -0400 Received: from trent.utfs.org ([194.246.123.103]:43699 "EHLO trent.utfs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753881Ab1DVDD3 (ORCPT ); Thu, 21 Apr 2011 23:03:29 -0400 Date: Thu, 21 Apr 2011 20:03:27 -0700 (PDT) From: Christian Kujau To: Minchan Kim cc: LKML , xfs@oss.sgi.com Subject: Re: 2.6.39-rc4+: oom-killer busy killing tasks In-Reply-To: Message-ID: References: User-Agent: Alpine 2.01 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-AV-Checked: ClamAV using ClamSMTP (127.0.0.1) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1112 Lines: 31 On Fri, 22 Apr 2011 at 11:58, Minchan Kim wrote: > But I wonder why VM can't reclaim the pages. As I see the log, there > are lots of slab pages(710M) in DMA zone while LRU pages are very > small. SLAB pages are things VM has a trouble to reclaim. I am not > sure 710M of SLAB is reasonable size. Don't you have experience same > problem in old kernel? No, I forgot to add 2.6.38 (and before) did not show that behaviour. > If you see the problem first in 2.6.39-rc4, maybe it would be a > regression(ex, might be slab memory leak) I would think so. I'll try to bisect, but with one compilation taking ~20min on this box, this might take a while. > Could you get the information about slabinfo(ex, cat /proc/slabinfo) > right before OOM happens. When it happens again, I'll try to get this. Thanks for replying, Christian. -- BOFH excuse #73: Daemons did it -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/