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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 1F9E2C19759 for ; Mon, 5 Aug 2019 02:44:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ED52220B1F for ; Mon, 5 Aug 2019 02:44:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726805AbfHECoB (ORCPT ); Sun, 4 Aug 2019 22:44:01 -0400 Received: from mail.cn.fujitsu.com ([183.91.158.132]:12794 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726666AbfHECoB (ORCPT ); Sun, 4 Aug 2019 22:44:01 -0400 X-IronPort-AV: E=Sophos;i="5.64,348,1559491200"; d="scan'208";a="72965382" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 05 Aug 2019 10:43:57 +0800 Received: from G08CNEXCHPEKD03.g08.fujitsu.local (unknown [10.167.33.85]) by cn.fujitsu.com (Postfix) with ESMTP id 3BA784CDB941 for ; Mon, 5 Aug 2019 10:44:00 +0800 (CST) Received: from [10.167.226.33] (10.167.226.33) by G08CNEXCHPEKD03.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.439.0; Mon, 5 Aug 2019 10:44:03 +0800 To: CC: From: Su Yanjun Subject: BUG, Message-ID: Date: Mon, 5 Aug 2019 10:42:31 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.167.226.33] X-yoursite-MailScanner-ID: 3BA784CDB941.AB978 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: suyj.fnst@cn.fujitsu.com Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Hi, When I tested xfstests generic/465 with NFS, there was something unexpected. When memory of NFS server was 10G, test passed. But when memory of NFS server was 4G, test failed. Fail message was as below.     non-aio dio test     encounter an error: block 4 offset 0, content 62     aio-dio test     encounter an error: block 1 offset 0, content 62 All of the NFS versions(v3 v4.0 v4.1 v4.2) have  this problem. Maybe something is wrong about NFS's I/O operation. Thanks in advance.