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=-0.5 required=3.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 09C9CC5ACC6 for ; Wed, 17 Oct 2018 01:06:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A461F214C3 for ; Wed, 17 Oct 2018 01:06:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A461F214C3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gmx.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-btrfs-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726955AbeJQI7x (ORCPT ); Wed, 17 Oct 2018 04:59:53 -0400 Received: from mout.gmx.net ([212.227.15.19]:33513 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726430AbeJQI7x (ORCPT ); Wed, 17 Oct 2018 04:59:53 -0400 Received: from [0.0.0.0] ([149.28.201.231]) by mail.gmx.com (mrgmx002 [212.227.17.184]) with ESMTPSA (Nemesis) id 0M3zne-1fLASk2x7q-00rVpz; Wed, 17 Oct 2018 03:06:45 +0200 Received: from [0.0.0.0] ([149.28.201.231]) by mail.gmx.com (mrgmx002 [212.227.17.184]) with ESMTPSA (Nemesis) id 0M3zne-1fLASk2x7q-00rVpz; Wed, 17 Oct 2018 03:06:45 +0200 Subject: Re: brtfs warning at ctree.h:1564 btrfs_update_device+0x220/0x230 To: Dmitry Katsubo , linux-btrfs References: From: Qu Wenruo Openpgp: preference=signencrypt Autocrypt: addr=quwenruo.btrfs@gmx.com; prefer-encrypt=mutual; keydata= xsBNBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAHNIlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT7CwJQEEwEIAD4CGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCWdWCnQUJCWYC bgAKCRDCPZHzoSX+qAR8B/94VAsSNygx1C6dhb1u1Wp1Jr/lfO7QIOK/nf1PF0VpYjTQ2au8 ihf/RApTna31sVjBx3jzlmpy+lDoPdXwbI3Czx1PwDbdhAAjdRbvBmwM6cUWyqD+zjVm4RTG rFTPi3E7828YJ71Vpda2qghOYdnC45xCcjmHh8FwReLzsV2A6FtXsvd87bq6Iw2axOHVUax2 FGSbardMsHrya1dC2jF2R6n0uxaIc1bWGweYsq0LXvLcvjWH+zDgzYCUB0cfb+6Ib/ipSCYp 3i8BevMsTs62MOBmKz7til6Zdz0kkqDdSNOq8LgWGLOwUTqBh71+lqN2XBpTDu1eLZaNbxSI ilaVzsBNBFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcga CbPEwhLj1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj /IrRUUka68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fN GSsRb+pKEKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0 q1eW4Jrv0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEv ABEBAAHCwHwEGAEIACYWIQQt33LlpaVbqJ2qQuHCPZHzoSX+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: Wed, 17 Oct 2018 09:06:41 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="hqf5k8S9QD8ONLwGU0e09iTemmEq3gfDs" X-Provags-ID: V03:K1:ItB8pl9ijhTOPYU+EBpIjAlLTnBWrnHJgC2dMeJSeswlKCFM5mb fTsTNJlSqQaeNR46ARdR5LzB4DxNMZU2DJl39RRg8WRWPyONvaE2CLIVoAH1ukg9ZFq/gy8 Tt+ekadir8n/fcRyFTFNIQbMvFC6o7S1bJp794IbVCmwPNsYin/uMrkBXxG6/TuktIHlW0x nNf9F3rzWox1xD7TCQAQg== X-UI-Out-Filterresults: notjunk:1;V01:K0:riPYvGpz0og=:ajBTfhgZqTSore+egmezRx h1AOIL1HtyRfweQLdoml70XddqVrjSr2wFw4cxR7GmGMiIi77UYPbJVlPw0LO6eWW0k8fcC+8 DzMLh0uvrgGjpXLlkxFF/Gas0mPiDJ/khqt1fGplp1v1W3rDNbqvNuCtYq5YgiuCzfDKwehIr /DkmMfCD1acSkdueE7N5CtMNsgV2QkvLi3zE2mrESlzAAm/7BHBrqwdwC8rAdG4jaJD4nrQz6 60ObWN2+StSJL2op0K/banbu/p1qp3bcckptpQ9FBQXMRarQoJn/NucmxrGOpPt1l6MDnw7ZW pOirQcbI2FFYahf3dRzcggmFCvDGHe5tmRWGBDO54QNH+WpnjDl1TKGC7UAh4KvrgBZjs8ZMG erkl6TLTkcSDaolb240mIu5B/AT3jVPV/3pV0RGyic+XbSfpsR/gVP2RQnl+geqC8nbkymcq0 f/avszGnMWYx0lfcVB7n+6pg6imI3AwQ9rdMZIwMzu+Z2N4i5CTniyRcv47Mr4p2KZA/NgVl0 Hs7ro7i5SxD35KDCUM6HnDtRrMfaSLzcArvDh8+NBgoXzQfwo31CNgj/OlBUIvctodkXpfB/y N3HewmxO2J3TA3uilGzZeiqT4npMj3/AzgLHRfyHGYwT/smLYFjnyrCTfE9xEExoRKy3kldY+ g99wDrck3oz/lhEGSVMJtDDTgpT6N9EWPv24ns+Hv/dc5UmQxLWjzhfhRtfRBaqaLBsAOPSi0 lgYww4ca0GAbptqSw4xcGnQlrcCQPt2AyhLn8y3d/tGRjJizFM0A8gQCmNpX0nag4nuURjJbm D6rn8tJt8+yfWaNv3zg9aRXar82fg== Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --hqf5k8S9QD8ONLwGU0e09iTemmEq3gfDs Content-Type: multipart/mixed; boundary="ZXP76XwJ2ubIFp2QQBdTVNApRxmHJYJKN"; protected-headers="v1" From: Qu Wenruo To: Dmitry Katsubo , linux-btrfs Message-ID: Subject: Re: brtfs warning at ctree.h:1564 btrfs_update_device+0x220/0x230 References: In-Reply-To: --ZXP76XwJ2ubIFp2QQBdTVNApRxmHJYJKN Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2018/10/17 =E4=B8=8A=E5=8D=885:27, Dmitry Katsubo wrote: > Dear btrfs team, >=20 > I often observe kernel traces on linux-4.14.0 (mostly likely due to bac= kground > "btrfs scrub") which contain the following "characterizing" line (for t= he rest > see attachments): >=20 > btrfs_remove_chunk+0x26a/0x7e0 [btrfs] >=20 > I wonder if somebody from developers team knows anything about this pro= blem. It > seems like after such dump btfs volume continues to function OK. It's a known minor problem. "btrfs rescue fix-device-size " could fix it offline (unmounted) Or if you're using the fs as root fs, resize the fs by removing 4K would also solve the problem: # btrfs filesystem resize :-4K The cause is old mkfs/kernel isn't aligning device size correctly, while later kernel is pretty picky about that alignment. It's mostly a developer oriented warning, no harm except a lot of scary kernel warning and may slow down log system. Thanks, Qu >=20 > Thanks for any information! >=20 --ZXP76XwJ2ubIFp2QQBdTVNApRxmHJYJKN-- --hqf5k8S9QD8ONLwGU0e09iTemmEq3gfDs Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAlvGiyEACgkQwj2R86El /qiAMwf9Fw8ArKaYfv93N2Og9Es7duW/C2CtVABFqS8R5y9LE36RFKPJvgZaLg5z OqyLGiKJPNd1ZvYi0J0uHqfVM0xXWIMfXWYWrTrBltoBldZ/iUw2flqiYSHXBq61 fkZL3CuHx0jJo0PlNNFR+8MCggB/P8sodQmumEVllOEO7IiqnAc80XgDpl6Nj3s2 37j4LzZsfWByZnQnB5EAEKPevBS2sbCMQ9c+wLOhaHCwuykHEaDO7OlGMuEsEOFF R6MPUYOcSVxmm8Aqv99O77GYrt8SWxEW1kpa0L91J1u15Kabg2p/WxCIfsnyM3fc 66B63QbXm3uuV2vPOnT8LR8ukjqxXA== =AcGj -----END PGP SIGNATURE----- --hqf5k8S9QD8ONLwGU0e09iTemmEq3gfDs--