From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx110.postini.com [74.125.245.110]) by kanga.kvack.org (Postfix) with SMTP id 1ACA26B02DF for ; Fri, 3 May 2013 11:34:53 -0400 (EDT) Date: Fri, 3 May 2013 17:34:50 +0200 From: Michal Hocko Subject: Re: OOM-killer and strange RSS value in 3.9-rc7 Message-ID: <20130503153450.GA18709@dhcp22.suse.cz> References: <0000013e427023d7-9456c313-8654-420c-b85a-cb79cc3c4ffc-000000@email.amazonses.com> <20130426062436.GB4441@localhost.localdomain> <0000013e46cba821-d5c54c99-3b5c-4669-9a54-9fb8f4ee516f-000000@email.amazonses.com> <20130427112418.GC4441@localhost.localdomain> <0000013e5645b356-09aa6796-0a95-40f1-8ec5-6e2e3d0c434f-000000@email.amazonses.com> <20130429145711.GC1172@dhcp22.suse.cz> <20130502105637.GD4441@localhost.localdomain> <0000013e65cb32b3-047cd2d6-dfc8-41d2-a792-9b398f9a1baf-000000@email.amazonses.com> <20130503030345.GE4441@localhost.localdomain> <0000013e6aff6f95-b8fa366e-51a5-4632-962e-1b990520f5a8-000000@email.amazonses.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0000013e6aff6f95-b8fa366e-51a5-4632-962e-1b990520f5a8-000000@email.amazonses.com> Sender: owner-linux-mm@kvack.org List-ID: To: Christoph Lameter Cc: Han Pingtian , LKML , penberg@kernel.org, rientjes@google.com, linux-mm@kvack.org On Fri 03-05-13 15:25:25, Christoph Lameter wrote: > On Fri, 3 May 2013, Han Pingtian wrote: > > > On Thu, May 02, 2013 at 03:10:15PM +0000, Christoph Lameter wrote: > > > On Thu, 2 May 2013, Han Pingtian wrote: > > > > > > > Looks like "ibmvscsi" + "slub" can trigger this problem. > > > > > > And the next merge of the slab-next tree will also cause SLAB to trigger > > > this issue. I would like to have this fixes. The slab allocator purpose is > > > to servr objects that are a fraction of a page and not objects that are > > > larger than the maximum allowed sizes of the page allocator. > > > > So the problem is in memory management code, not in ibmvscis? And looks > > like there is a fix already? > > Both should be fixed. Could you point to the specific commit(s), please? > Making requests for large amounts of memory from an allocator that is > supposed to hand out fraction of a page does not make sense. AFAIR there were lots of objects in size-512 as well. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org