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 991AAC433E1 for ; Thu, 11 Jun 2020 12:37:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 760482078D for ; Thu, 11 Jun 2020 12:37:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="IQ4j0f+T" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727913AbgFKMhZ (ORCPT ); Thu, 11 Jun 2020 08:37:25 -0400 Received: from mout.gmx.net ([212.227.17.21]:56885 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726708AbgFKMhY (ORCPT ); Thu, 11 Jun 2020 08:37:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1591879040; bh=z27qfCeepoOPzfXTjX4pAsDubYGF2p15ErX+alE4CEc=; h=X-UI-Sender-Class:Subject:To:References:From:Date:In-Reply-To; b=IQ4j0f+TWpDTpAPVA3iv5bLNKZ9u9wCgPVBCHdjIjuR+c1L9PRB/JxXWlWnWiGHy1 WDV/X+JFYR7GCsvEyzqI9SIzv+6j4C6zHkmuZTiEhmvDp7+WoUIyMkHTfF0vxKV5ST UJEkZnHn2G62Hugcsda9R8yMWPGKQ5Fds9xKDDds= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [0.0.0.0] ([149.28.201.231]) by mail.gmx.com (mrgmx104 [212.227.17.174]) with ESMTPSA (Nemesis) id 1Mnpnm-1j7Xqn3B6o-00pMPG; Thu, 11 Jun 2020 14:37:20 +0200 Subject: Re: BTRFS: Transaction aborted (error -24) To: dsterba@suse.cz, Greed Rong , linux-btrfs@vger.kernel.org References: <20200611112031.GM27795@twin.jikos.cz> From: Qu Wenruo Autocrypt: addr=quwenruo.btrfs@gmx.com; prefer-encrypt=mutual; keydata= mQENBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAG0IlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT6JAU4EEwEIADgCGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCXZw1oQAKCRDC PZHzoSX+qCY6CACd+mWu3okGwRKXju6bou+7VkqCaHTdyXwWFTsr+/0ly5nUdDtT3yEVggPJ 3VP70wjlrxUjNjFb6iIvGYxiPOrop1NGwGYvQktgRhaIhALG6rPoSSAhGNjwGVRw0km0PlIN D29BTj/lYEk+jVM1YL0QLgAE1AI3krihg/lp/fQT53wLhR8YZIF8ETXbClQG1vJ0cllPuEEv efKxRyiTSjB+PsozSvYWhXsPeJ+KKjFen7ebE5reQTPFzSHctCdPnoR/4jSPlnTlnEvLeqcD ZTuKfQe1gWrPeevQzgCtgBF/WjIOeJs41klnYzC3DymuQlmFubss0jShLOW8eSOOWhLRuQEN BFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcgaCbPEwhLj 1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj/IrRUUka 68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fNGSsRb+pK EKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0q1eW4Jrv 0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEvABEBAAGJ ATwEGAEIACYCGwwWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCXZw1rgUJCWpOfwAKCRDCPZHz oSX+qFcEB/95cs8cM1OQdE/GgOfCGxwgckMeWyzOR7bkAWW0lDVp2hpgJuxBW/gyfmtBnUai fnggx3EE3ev8HTysZU9q0h+TJwwJKGv6sUc8qcTGFDtavnnl+r6xDUY7A6GvXEsSoCEEynby 72byGeSovfq/4AWGNPBG1L61Exl+gbqfvbECP3ziXnob009+z9I4qXodHSYINfAkZkA523JG ap12LndJeLk3gfWNZfXEWyGnuciRGbqESkhIRav8ootsCIops/SqXm0/k+Kcl4gGUO/iD/T5 oagaDh0QtOd8RWSMwLxwn8uIhpH84Q4X1LadJ5NCgGa6xPP5qqRuiC+9gZqbq4Nj Message-ID: Date: Thu, 11 Jun 2020 20:37:11 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <20200611112031.GM27795@twin.jikos.cz> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="ovDaEfCIOk84jQHUke4WHuDgB5DctYrZh" X-Provags-ID: V03:K1:+OPd1aqDMhpGPw87AmMnqidl3U/MbHK75y2FUOLETuJNDk4hHiu q5Xrm7Q3mHg72CvvHTET+DKRv2eUaa08ack0pyWxdJUGcYxJc4yTkfXe1DUMt7nvYnj2yih oIvoMEgz4kLhz7nBTjTloPqkJ8oeqxV1kr09yaMt3gcN+3TZYh80X2nlN+HWIBgten/lwnX XI+/FCLUyrhm1LC5RvLsg== X-UI-Out-Filterresults: notjunk:1;V03:K0:d6Dvicpjvrk=:cyVA3/ViuNaSrfGk6se9Q3 9k21TQ0eOI3ccJ84Lw1qT3BR9jmN+s3EPfZLwiqN5UE6gSkTcPpN0Jxdf3aj/Y2/IpSe0gP4F gGzWH9t6p7gmtLd9JmX3Bt6Ds5LNx7EJxjPzjZnJ4CjMbEiKuRFy0ajak7cv1hOtfd/KBXn// wyWIqUFFDHiFYKDYMj2mVTpxAaY1kh3+X5daV3q3lPf9wdPQp9AeXmpD7DDMQrjNHmBMvYgik n7Iqs3AG/YKVqPcizK8e2XhU1qGuSCzyt4IS+0EFIT2RV8WstkVN6VTOjxqLSsv/0Dfts4SEl d9qauPkjhPXUTZyc3h6B4tNp3wWY04LS/KM1ZLd9pogzsb8Fx4HUTdA21ZqczBwaRoJxX7kw+ +MzMYbJ6zg8v+UaLYZ9gm4g2ugGEy0EuEJSoGRgQPNxuCkqVVwicbYkJiPc+cjN2qFti/IJgB BR6B89pzpRgz+cGMOeTAlutId8+LxdjDK0F6nWKYoSXBqj1VR5s/AR9Z8039r7km6znUZB4Sc Z4UG8x1v0DUp7uDB89x+fUiWX56Zz0juquaAp/2H5x8ydQJ2cLaeUqN6Eat/H3Jh/dF9dMKXo BqDcqzuBaBBRH5IexiTfH1GgOuf1b0Tw/ddP02tMM+k5b2CMmSYEX897Hs/tWyq4Lvcb/fyXp QuCsdjgJsLkJyRGEQLX7kp3ZGoq99Ik2tzaSPf12pj5kcWXAs1QLSphjcxL7tmy+SATH5hGkm c78zIuejXxuQVx9e93e8nWPouRM+7218t2z8E8jlQogKk1gUPhs12W/8gAVthVJ8pQvdcjA1C ST1LHUyH2rtaz3abMdAzqDe+Vza2dU92PVewpAxz1N/PcNM3KgoV6xEVxu5iBCSqP4vU1zT+8 U4lCHkG4D/PiVij65vHzGCPZiohFTigTQw6e/MsoBvAw7gUARECQzVChbunYP8RuLwWfF32z+ 6ECNGBVK9WKBu5xTWhBYr2MppIvcORsM17HxQfhT9I1Mjf5Og6zguIYttIblmkY8bqwwGMCko OnAxhUHgAdaO8YhqobVh5/RZByZmPzFDpLBJaw3jEJ9Pu17pfk/Yi3eCy3rYDgIkRkg5J5Vdx G71sworffH/D7rQ+n77Abb4AuzxoHbNhHAz//e4Ity01k/YOmb7euD50a7OYDqu6cUrBMs8XZ 85ns/xB9VKOJBkF41cOQbz3E7okBmZP+bBewYxhCMlEaYDy1VAH8JEA180hoH5eSt/Cs8TtA6 9/hLvKT0H6BnIceki 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) --ovDaEfCIOk84jQHUke4WHuDgB5DctYrZh Content-Type: multipart/mixed; boundary="Qtu5pF2XTFhzrYKc95KPjpxDa0bM8hnt8" --Qtu5pF2XTFhzrYKc95KPjpxDa0bM8hnt8 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2020/6/11 =E4=B8=8B=E5=8D=887:20, David Sterba wrote: > On Thu, Jun 11, 2020 at 06:29:34PM +0800, Greed Rong wrote: >> Hi, >> I have got this error several times. Are there any suggestions to avoi= d this? >> >> # dmesg >> [7142286.563596] ------------[ cut here ]------------ >> [7142286.564499] BTRFS: Transaction aborted (error -24) >=20 > EMFILE 24 /* Too many open files */ >=20 > you can increase the open file limit but it's strange that this happens= , > first time I see this. Not something from btrfs code, thus it must come from the VFS/MM code. The offending abort transaction is from btrfs_read_fs_root_no_name(), which is updated to btrfs_get_fs_root() in upstream kernel. Overall, it's not much different between the upstream and the 5.0.10 kern= el. But with latest btrfs_get_fs_root(), after a quick glance, there isn't any obvious location to introduce the EMFILE error. Any extra info about the worload to trigger the bug? Thanks, Qu >=20 >> 5.0.10-050010-generic #201904270832 >=20 > 5.0.10 is quite old, but that shouldn't affect it. >=20 --Qtu5pF2XTFhzrYKc95KPjpxDa0bM8hnt8-- --ovDaEfCIOk84jQHUke4WHuDgB5DctYrZh Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAl7iJXcACgkQwj2R86El /qjXggf8DzlIAU3Vd4F1Iz/PHBKKJabhi4wZaFJ0rdIf0iIHTqVOnantbJVtbKbB 2XMRI4dgD8aTL9SbhO/mthqJkxCvHJEpztCVqveD9MlDMbCfRfmbv8v8fgVX5n4C BNGIg+8t/TigPfcfLsQfA3/4KnAtBX9+3eNak5i2wDEGMe5rK0VotDJgtxMeYZsN xxrzdEZj0nZWR8CjVbulQ0X5nH458fYyhfVYLCD/IiAn1zPRS2hhqna/pkkzutUb nm0y+c/cBsfQT/6hdmXaTiGtn8zwVCgtrp1gh0UJmeTHFCrDyfEm6/RbHhnPTSxt 4ywwRJYCuYgsmxrUc4KrMRHXu4i87w== =J6ZR -----END PGP SIGNATURE----- --ovDaEfCIOk84jQHUke4WHuDgB5DctYrZh--