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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,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 A2C56C433E0 for ; Fri, 29 Jan 2021 01:14:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5508B64DE2 for ; Fri, 29 Jan 2021 01:14:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231846AbhA2BOV (ORCPT ); Thu, 28 Jan 2021 20:14:21 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:11470 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229596AbhA2BOL (ORCPT ); Thu, 28 Jan 2021 20:14:11 -0500 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4DRfT64SfszjCt2; Fri, 29 Jan 2021 09:12:26 +0800 (CST) Received: from [10.136.110.154] (10.136.110.154) by smtp.huawei.com (10.3.19.212) with Microsoft SMTP Server (TLS) id 14.3.498.0; Fri, 29 Jan 2021 09:13:25 +0800 Subject: Re: [f2fs-dev] [PATCH v3 1/5] f2fs: compress: add compress_inode to cache compressed blocks To: Jaegeuk Kim CC: Chao Yu , , References: <37ba41db-2589-e155-c416-d0c8832026cb@huawei.com> <8e88b1e2-0176-9487-b925-9c7a31a7e5cd@huawei.com> <20a1dbd3-808e-e62a-53f3-7f1e2a316b3c@kernel.org> <068da0d3-18c9-53f7-0f24-63b07e1af272@huawei.com> <9b982458-57e1-a04d-c5d4-f5ca775af1e7@huawei.com> From: Chao Yu Message-ID: Date: Fri, 29 Jan 2021 09:13:24 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.136.110.154] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2021/1/29 0:12, Jaegeuk Kim wrote: > On 01/28, Chao Yu wrote: >> On 2021/1/22 10:17, Chao Yu wrote: >>>> No, it seems this is not the case. >>> Oops, could you please help to remove all below codes and do the test again >>> to check whether they are the buggy codes? as I doubt there is use-after-free >>> bug. >> >> Any test result? :) > > It seems I don't see the errors anymore. Will you post another version? No, your test result only indicate that bug was caused by race condition of that line with high possibility, however I've no idea how that happen after several round code review. Still struggling in troubleshooting this issue. Thanks, > >> >> Thanks, > . >