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Message-ID: <20130503153450.GA18709@dhcp22.suse.cz> Date: Fri, 3 May 2013 17:34:50 +0200 From: Michal Hocko <mhocko@...e.cz> To: Christoph Lameter <cl@...ux.com> Cc: Han Pingtian <hanpt@...ux.vnet.ibm.com>, LKML <linux-kernel@...r.kernel.org>, penberg@...nel.org, rientjes@...gle.com, linux-mm@...ck.org Subject: Re: OOM-killer and strange RSS value in 3.9-rc7 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 from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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