From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2A4BC10F00 for ; Sat, 7 Mar 2020 03:26:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 87E342070A for ; Sat, 7 Mar 2020 03:26:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726751AbgCGD0z (ORCPT ); Fri, 6 Mar 2020 22:26:55 -0500 Received: from out30-43.freemail.mail.aliyun.com ([115.124.30.43]:37343 "EHLO out30-43.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726237AbgCGD0z (ORCPT ); Fri, 6 Mar 2020 22:26:55 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R171e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04420;MF=alex.shi@linux.alibaba.com;NM=1;PH=DS;RN=16;SR=0;TI=SMTPD_---0TrsR0i9_1583551608; Received: from IT-FVFX43SYHV2H.local(mailfrom:alex.shi@linux.alibaba.com fp:SMTPD_---0TrsR0i9_1583551608) by smtp.aliyun-inc.com(127.0.0.1); Sat, 07 Mar 2020 11:26:49 +0800 Subject: Re: [failures] mm-vmscan-remove-unnecessary-lruvec-adding.patch removed from -mm tree To: Qian Cai Cc: LKML , Andrew Morton , aarcange@redhat.com, daniel.m.jordan@oracle.com, hannes@cmpxchg.org, hughd@google.com, khlebnikov@yandex-team.ru, kirill@shutemov.name, kravetz@us.ibm.com, mhocko@kernel.org, mm-commits@vger.kernel.org, tj@kernel.org, vdavydov.dev@gmail.com, willy@infradead.org, yang.shi@linux.alibaba.com References: <20200306025041.rERhvnYmB%akpm@linux-foundation.org> <211632B1-2D6F-4BFA-A5A0-3030339D3D2A@lca.pw> <792CE873-A64B-4FA6-A258-A8B6B951E698@lca.pw> From: Alex Shi Message-ID: <7149d2fb-2ff2-d251-2ed1-b4e6d81748ee@linux.alibaba.com> Date: Sat, 7 Mar 2020 11:26:47 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <792CE873-A64B-4FA6-A258-A8B6B951E698@lca.pw> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 在 2020/3/7 上午10:27, Qian Cai 写道: >> Compare to this patch's change, the 'c8cba0cc2a80 mm/thp: narrow lru locking' is more >> likely bad. Maybe it's due to lru unlock was moved before ClearPageCompound() from >> before remap_page(head); guess this unlock should be move after ClearPageCompound or >> move back to origin place. > I can only confirmed that after reverted those 6 patches, I am no long be able to reproduce it. > Hi Qian, Thanks for response! Could you like just try to revert the patch: 'mm/thp: narrow lru locking'? or would you like to share me info of your tests and let me reproduce it? like kernel config, system ENV, machine type. I had run hundreds cycle of oom01, but akpm kernel(f2cbd107a99b) still survived. I got my ltp mm testing results, it run total 75 cases, failed 2, skip 9 and others are success and kernel works well after test on yesterday's akmp head: f2cbd107a99b. Many Thanks for help! Alex ===== Test Start Time: Fri Mar 6 20:49:59 2020 ----------------------------------------- Testcase Result Exit Value -------- ------ ---------- mm01 PASS 0 mm02 PASS 0 mtest01 PASS 0 mtest01w PASS 0 mtest05 PASS 0 mtest06 PASS 0 mtest06_2 PASS 0 mtest06_3 PASS 0 mem01 PASS 0 mem02 PASS 0 mem03 PASS 0 page01 PASS 0 page02 PASS 0 data_space PASS 0 stack_space PASS 0 shmt02 PASS 0 shmt03 PASS 0 shmt04 PASS 0 shmt05 PASS 0 shmt06 PASS 0 shmt07 PASS 0 shmt08 PASS 0 shmt09 PASS 0 shmt10 PASS 0 shm_test01 PASS 0 mallocstress01 PASS 0 mmapstress01 PASS 0 mmapstress02 PASS 0 mmapstress03 PASS 0 mmapstress04 PASS 0 mmapstress05 PASS 0 mmapstress06 PASS 0 mmapstress07 PASS 0 mmapstress08 PASS 0 mmapstress09 PASS 0 mmapstress10 PASS 0 mmap10 PASS 0 mmap10_1 PASS 0 mmap10_2 PASS 0 mmap10_3 PASS 0 mmap10_4 PASS 0 ksm01 FAIL 2 ksm01_1 FAIL 1 ksm02 CONF 32 ksm02_1 CONF 32 ksm03 PASS 0 ksm03_1 PASS 0 ksm04 CONF 32 ksm04_1 CONF 32 ksm05 PASS 0 ksm06 CONF 32 ksm06_1 CONF 32 ksm06_2 CONF 32 oom01 PASS 0 oom02 CONF 32 oom03 PASS 0 oom04 PASS 0 oom05 PASS 0 swapping01 PASS 0 thp01 PASS 0 thp02 PASS 0 thp03 PASS 0 vma01 PASS 0 vma02 PASS 0 vma03 CONF 32 vma04 PASS 0 vma05 PASS 0 overcommit_memory01 PASS 0 overcommit_memory02 PASS 0 overcommit_memory03 PASS 0 overcommit_memory04 PASS 0 overcommit_memory05 PASS 0 overcommit_memory06 PASS 0 max_map_count PASS 0 min_free_kbytes PASS 0 ----------------------------------------------- Total Tests: 75 Total Skipped Tests: 9 Total Failures: 2 Kernel Version: 5.6.0-rc4-06724-gf2cbd107a99b Machine Architecture: x86_64 Hostname: alexshi-test