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=-2.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,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 1A1C6C433FF for ; Mon, 29 Jul 2019 14:51:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D412C206E0 for ; Mon, 29 Jul 2019 14:51:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="VMQXFQWR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728489AbfG2Ovq (ORCPT ); Mon, 29 Jul 2019 10:51:46 -0400 Received: from mout.gmx.net ([212.227.17.21]:47649 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728377AbfG2Ovq (ORCPT ); Mon, 29 Jul 2019 10:51:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1564411904; bh=2EQhR092z+XsdcbY+bzRzhvWh0v0I4Qy0PIWUjLHaf8=; h=X-UI-Sender-Class:Subject:To:References:From:Date:In-Reply-To; b=VMQXFQWR7cZHETroxtPFx0E8jVPjx6yjDKNXR/UL6MkHrV0zkLBrZM5VOs9eECnnZ aq9AFLgxMLeAflMJhWvGFy0vulVXwGggtKIsBeiS7lxQCX7PKG/hwNWB//iF2IYjge xA9XbxQSHyzJ2Md/8w5qFapIiWXeSGLuxmjgsr0M= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [0.0.0.0] ([54.250.245.166]) by mail.gmx.com (mrgmx105 [212.227.17.174]) with ESMTPSA (Nemesis) id 1N4zAy-1iZFDm2UAG-010rxo; Mon, 29 Jul 2019 16:51:44 +0200 Subject: Re: Massive filesystem corruption since kernel 5.2 (ARCH) To: =?UTF-8?Q?Sw=c3=a2mi_Petaramesh?= , linux-btrfs@vger.kernel.org References: <0ce15d14-9f30-ac83-0964-8e695eca8cbd@gmx.com> <325a96b2-e6a4-91e3-3b07-1d20a5a031af@petaramesh.org> <49785aa8-fb71-8e0e-bd1d-1e3cda4c7036@gmx.com> <39d43f92-413c-2184-b8da-2c6073b5223f@petaramesh.org> <71bc824e-1462-50ef-19b1-848c5eb0439d@gmx.com> <4aa57293-3f60-8ced-db14-ed38dff7644b@petaramesh.org> <43dc92e7-cd13-81db-bbe5-68affcdd317b@gmx.com> From: Qu Wenruo Openpgp: preference=signencrypt Autocrypt: addr=quwenruo.btrfs@gmx.com; prefer-encrypt=mutual; keydata= mQENBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAG0IlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT6JAVQEEwEIAD4CGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCWdWCnQUJCWYC bgAKCRDCPZHzoSX+qAR8B/94VAsSNygx1C6dhb1u1Wp1Jr/lfO7QIOK/nf1PF0VpYjTQ2au8 ihf/RApTna31sVjBx3jzlmpy+lDoPdXwbI3Czx1PwDbdhAAjdRbvBmwM6cUWyqD+zjVm4RTG rFTPi3E7828YJ71Vpda2qghOYdnC45xCcjmHh8FwReLzsV2A6FtXsvd87bq6Iw2axOHVUax2 FGSbardMsHrya1dC2jF2R6n0uxaIc1bWGweYsq0LXvLcvjWH+zDgzYCUB0cfb+6Ib/ipSCYp 3i8BevMsTs62MOBmKz7til6Zdz0kkqDdSNOq8LgWGLOwUTqBh71+lqN2XBpTDu1eLZaNbxSI ilaVuQENBFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcga CbPEwhLj1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj /IrRUUka68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fN GSsRb+pKEKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0 q1eW4Jrv0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEv ABEBAAGJATwEGAEIACYWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCWdWBrwIbDAUJA8JnAAAK CRDCPZHzoSX+qA3xB/4zS8zYh3Cbm3FllKz7+RKBw/ETBibFSKedQkbJzRlZhBc+XRwF61mi f0SXSdqKMbM1a98fEg8H5kV6GTo62BzvynVrf/FyT+zWbIVEuuZttMk2gWLIvbmWNyrQnzPl mnjK4AEvZGIt1pk+3+N/CMEfAZH5Aqnp0PaoytRZ/1vtMXNgMxlfNnb96giC3KMR6U0E+siA 4V7biIoyNoaN33t8m5FwEwd2FQDG9dAXWhG13zcm9gnk63BN3wyCQR+X5+jsfBaS4dvNzvQv h8Uq/YGjCoV1ofKYh3WKMY8avjq25nlrhzD/Nto9jHp8niwr21K//pXVA81R2qaXqGbql+zo Message-ID: Date: Mon, 29 Jul 2019 22:51:37 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:NkRX1oiKSIZSGWQok2kAGQqIeIGXMUHfmtyxxyyEp92wOv+SOTE 5tPBVgue7b9NU1SCWjVrZW55WDQi4LaY33fdSqXWz+onfBp7SBaZY65MCW+kV537Qu0Ur9C 10ujJUJxnUj1Zchw8vW4rI9RbmWkRHjUIKSMoQmmJvQ0xS1J4BS9CtU0roN9Z+aYDV27HMl 8Mb+RoqioNlJs7D9pt7sg== X-UI-Out-Filterresults: notjunk:1;V03:K0:8DRoOW67YMk=:SvYmr/7m4+2Ncpo1m7Bm2z kEcPN0svzf/mrMCsU69NEW4QlYCfs8WOtF7VLUJbMcfFSncVDhha5rfVBku/f61+ZzvaYtVEY 12+YFjuunZeL127YWI6j8c0NijovDpLgp849RvLPoVSLjhvI5lcz5WobPGZRHHD1rytnaj1ow n/gRD4tjnoe+zB47pn70rwTBru+hT70cbsO0XlO4PmgeQRsTQp7+VBmX7Fv/KfUDtE/Bx9Ryn XH3igb6Ubxz6smV8p09dSQowXhGxbgeKanNPqEmp4m/cLrIw6fyLaDlglsjzQqqptg7xpZP9k 7Zh0bshmLVdpVeKljA51zJ/PIOBbq4LDa2wXY8QANljLt8Gx8dsZWaEnm7nFbI6a+UnGzeQLw jxWeFlJejk7ifLsXjnRTUI/6h1OOfcOts/eif7uiOB3qQXEKU8Zj+2cQKW0E81lTxCoN/ERE1 8OL3rmSgJeIqIblzIrgPoZK5bG4o/prgcclIXXrVMXxDhaOdxcCX7757QNocsG6H0FtresXAp SKQlMQbY2Mcaory9nMyA71ySqEVxvvCC8OTIcxXcciZQHH4Jjq9a9IgATrY8DIw+kxTCdgm94 CcPrQZwfTdzQmfg2rfdqEui6VQrQBbYzDRf2/kdNDEkQ88atkOEsaBNBWLKGobkj9p21nUCte CyikrQCfqMF+MR9xv+g0KfjTDFDBQw4Xr+7xYyRp+Zx0ij8Wym4gNqZgVkjH0TmffgtYJ0+4n Wq+yFfdzNCqKXRk3grGnzNshGsFMLAQipTk32nFLlawvuTrGSru8KskeagM9HCOuYxJnTifOB L9QKLjFnSNRZyidZVTfx/4oBTCMkC68M2VeY/mEP0ysi9T3/J0mtB8bFPQ9cZlJNnR9TdWv4v sqJlABV3G8Y3OPKcIPb954QVEs504GFcLCDVtRjAYY4Um8Uo0n9ZReiWIN66UZ70CIU66K3da 0N4GW0naIBInC48B6Eb8nOfjq2EA41hIC8LnFfycvTXdQiJSc1m7bfSdypTvFeVR4vrwg2Ay2 Sq7GH2MteGt7oGTsi+gmhcKRWS46ZBxIr3RRW3Bl0HrII5IP+QCcQKdfAVKY2QcVRmMbXjdI+ d2wH8x6jSSdtjfrfPS5d/lJbe2ZW1y8KMZL Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On 2019/7/29 =E4=B8=8B=E5=8D=8810:46, Sw=C3=A2mi Petaramesh wrote: > Le 29/07/2019 =C3=A0 16:40, Qu Wenruo a =C3=A9crit=C2=A0: >> At least from what I see in this transid error, unless you ruled out th= e >> possibility of bad disk firmware and LVM/LUKS, it's hard to say it's >> btrfs causing the problem. > > Well it would be such a coincidence that a machine that has been 100% > stable since 2014 suddently crashes 2 filesystems on 2 different disks > justy after upgrading to 5.2 and both things would be unrelated. > > Can happen, but the chances... If I understand your two threads correctly, one is this transid error, the other one is tree-checker, which is completely different from this one= . The tree-checker one is mostly caused by older fs, and as you mentioned, reverting to 5.1 solves that problem. This transid won't be resolved whatever kernel version you use, it's a real corruption in extent tree, caused by incorrect metadata CoW. So they are two different problems, and this transid error can be completely unrelated to 5.2 kernel. Thanks, Qu > >> In fact, we have a more experienced sysadmin, Zygo, sharing his >> experience of bad *HARDWARE* causing various Flush/FUA problem, which i= s >> not easy to hit in normal use case, but only after power loss. > >> So for your transid error, it's really hard to pin down the cause, >> unless you have deployed hundreds btrfs... > > For the record I am a professional sysadmin with 20+ years Linux > experience and I have deployed BTRFS on dozens of systems (OK maybe not > hundreds, not sure)...> > Kind regards. > > =E0=A5=90 >