From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f44.google.com (mail-pa0-f44.google.com [209.85.220.44]) by kanga.kvack.org (Postfix) with ESMTP id 2998C6B0038 for ; Tue, 3 Mar 2015 10:40:05 -0500 (EST) Received: by pabli10 with SMTP id li10so24939192pab.13 for ; Tue, 03 Mar 2015 07:40:04 -0800 (PST) Received: from mailout4.w1.samsung.com (mailout4.w1.samsung.com. [210.118.77.14]) by mx.google.com with ESMTPS id d4si1637060pat.7.2015.03.03.07.40.03 for (version=TLSv1 cipher=RC4-MD5 bits=128/128); Tue, 03 Mar 2015 07:40:04 -0800 (PST) Received: from eucpsbgm2.samsung.com (unknown [203.254.199.245]) by mailout4.w1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NKN00LAC7P92C30@mailout4.w1.samsung.com> for linux-mm@kvack.org; Tue, 03 Mar 2015 15:43:57 +0000 (GMT) Message-id: <54F5D5CC.6070901@samsung.com> Date: Tue, 03 Mar 2015 18:39:56 +0300 From: Andrey Ryabinin MIME-version: 1.0 Subject: Re: [RFC] slub memory quarantine References: <54F57716.80809@samsung.com> In-reply-to: Content-type: text/plain; charset=utf-8 Content-transfer-encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Dmitry Vyukov Cc: Andrew Morton , Christoph Lameter , David Rientjes , Joonsoo Kim , Pekka Enberg , Linux Memory Management List , Sasha Levin , Dmitry Chernenkov , Konstantin Khlebnikov , LKML On 03/03/2015 12:10 PM, Dmitry Vyukov wrote: > Please hold on with this. > Dmitry Chernenkov is working on a quarantine that works with both slub > and slab, does not cause spurious OOMs and does not depend on > slub-debug which has unacceptable performance (acquires global lock). I think that it's a separate issue. KASan already depend on slub_debug - it required for redzones/user tracking. I think that some parts slub debugging (like user tracking and this quarantine) could be moved (for CONFIG_KASAN=y) to the fast path without any locking. > Me or Dmitry C will send an email to kasan-dev@googlegroups.com to > discuss quarantine development direction. > -- 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