From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f54.google.com (mail-pb0-f54.google.com [209.85.160.54]) by kanga.kvack.org (Postfix) with ESMTP id AE9A46B0035 for ; Wed, 22 Jan 2014 18:45:22 -0500 (EST) Received: by mail-pb0-f54.google.com with SMTP id uo5so1061815pbc.41 for ; Wed, 22 Jan 2014 15:45:22 -0800 (PST) Received: from e23smtp09.au.ibm.com (e23smtp09.au.ibm.com. [202.81.31.142]) by mx.google.com with ESMTPS id if4si11579700pbc.346.2014.01.22.15.45.19 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Wed, 22 Jan 2014 15:45:21 -0800 (PST) Received: from /spool/local by e23smtp09.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 23 Jan 2014 09:45:18 +1000 Received: from d23relay04.au.ibm.com (d23relay04.au.ibm.com [9.190.234.120]) by d23dlp02.au.ibm.com (Postfix) with ESMTP id 17C9B2BB0053 for ; Thu, 23 Jan 2014 10:45:16 +1100 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay04.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id s0MNQC5x5964098 for ; Thu, 23 Jan 2014 10:26:12 +1100 Received: from d23av01.au.ibm.com (localhost [127.0.0.1]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id s0MNjFZw019954 for ; Thu, 23 Jan 2014 10:45:15 +1100 Date: Thu, 23 Jan 2014 07:45:13 +0800 From: Wanpeng Li Subject: Re: OOM-killer and strange RSS value in 3.9-rc7 Message-ID: <52e05811.a4c3440a.6f6c.1db4SMTPIN_ADDED_BROKEN@mx.google.com> Reply-To: Wanpeng Li References: <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> <20130503153450.GA18709@dhcp22.suse.cz> <0000013e6b2e06ab-a26ffcc5-a52d-4165-9be0-025ae813da00-000000@email.amazonses.com> <52bd58da.2501440a.6368.16ddSMTPIN_ADDED_BROKEN@mx.google.com> <52caac5c.27cb440a.533d.ffffbbd2SMTPIN_ADDED_BROKEN@mx.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: David Rientjes Cc: Christoph Lameter , Michal Hocko , Han Pingtian , linux-kernel@vger.kernel.org, Pekka Enberg , linux-mm@kvack.org Hi David, On Tue, Jan 21, 2014 at 02:12:45PM -0800, David Rientjes wrote: >On Mon, 6 Jan 2014, Wanpeng Li wrote: > >> >Is there any progress against slub's fix? >> > >> >MemTotal: 7760960 kB >> >Slab: 7064448 kB >> >SReclaimable: 143936 kB >> >SUnreclaim: 6920512 kB >> > >> >112084 10550 9% 16.00K 3507 32 1795584K kmalloc-16384 >> >2497920 48092 1% 0.50K 19515 128 1248960K kmalloc-512 >> >6058888 89363 1% 0.19K 17768 341 1137152K kmalloc-192 >> >114468 13719 11% 4.58K 2082 55 532992K task_struct >> > >> >> This machine has 200 CPUs and 8G memory. There is an oom storm, we are >> seeing OOM even in boot process. >> > >Is this still a problem with 3.9 and later kernels? Please try to >reproduce it on 3.13. > >If it does reproduce, could you try to pinpoint the problem with kmemleak? >Look into Documentation/kmemleak.txt which should identify where these >leaks are coming from with your slab allocator of choice. We figure out the root issue caused by memoryless node and the patch is under testing. Regards, Wanpeng Li -- 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