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=BAYES_00,DKIM_SIGNED, DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 C3D33C4743C for ; Mon, 21 Jun 2021 23:36:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A8C5660FE7 for ; Mon, 21 Jun 2021 23:36:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231926AbhFUXiW (ORCPT ); Mon, 21 Jun 2021 19:38:22 -0400 Received: from mout.gmx.net ([212.227.17.22]:49099 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231823AbhFUXiV (ORCPT ); Mon, 21 Jun 2021 19:38:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1624318565; bh=92axqBEmF/2bAbaPbL2qGxqRptKZMoVuTwN6HtA9TyY=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=gIC5Om8CxvtLCWgJeiMRhT8P9EFfKNYsdMbCVZbur4F8g+yY/wSoNw9P0Hr8HHeRo nYAIKfpNdFl3mVInytKIY+jN/ZlLTZzZw9Fz7C1JXPiknBAPL3gNGSl7dELVr5lNaX 75NKBhbcTAwEMSvEfebJfYnASYEU+QCYDIgYPdaA= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [0.0.0.0] ([149.28.201.231]) by mail.gmx.net (mrgmx104 [212.227.17.174]) with ESMTPSA (Nemesis) id 1MYeR1-1libGp1DPv-00Ve22; Tue, 22 Jun 2021 01:36:05 +0200 Subject: Re: Filesystem goes readonly soon after mount, cannot free space or rebalance To: Asif Youssuff Cc: Btrfs BTRFS References: <2bb832db-3c33-d3ba-d9ae-4ebd44c1c7f3@gmail.com> <1b89f8a3-42a4-3c6d-aec8-1b91a7b43713@gmx.com> From: Qu Wenruo Message-ID: <60a9b119-c842-9fea-3fb3-5cd29a8869ef@gmx.com> Date: Tue, 22 Jun 2021 07:36:01 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:WlEwQX3G+6svrW4kzA0NeV8P7LwNnj4As1OSn+PQTLgN5FWBNdH G6aQz3EZdZ3FQZ3daagGlFfV6cRkYS131Yn5JR0UclKbznE0cW/lKZFyrzuhiykt2EMV9Tr KOjskAwby0fLPJxbbJff20hsQdwb6t50TIuL+6IXV/lwjbg+BJnTNZ0tzIeXrsfUfyysk5I 9G8C0Gtv/HiPCLRl+8jWg== X-UI-Out-Filterresults: notjunk:1;V03:K0:Hcz2KGnOHU0=:MNRZGtV2zGRAFiW9+v4IHn vL9Munqu/8WZ33BZ8+cseI2QhGFSvztaqxXi0ihDjJ4siQxgip7/PPvU51J1dfetFQX+S3Beo r75ck9u6HZgojNbMLa0hcxmkQWvOsfxgNsG3/6gIff4W1W90e/IO6DAEAw5GK3JyI31i1O2Qt qltCcT18b5Y+adyBd+xxdDf5drjG2ke6qSFwpQSD5djRdiatWLliWgtLOZ7rAxmZqBqbQw54H L6kblGOXAwWcuh4odR9g+FB3qWQ/f9H13j27zUFT7BugYLKBhbT6VInr6mtD0zCbSP3hXhRUW FsDAxkEkKeIG1fsKCkX47vEIWvxc02y6b31JeKkiYKatDp4N/R1+D2xFzKBEllsExkAEGmhbI CHiHFNs10gRsUO1vRgeKDcQn9seoruKUirTHwJYtomuB1JqoBHi9datWwkx+1wFyeqrfD7K9C zjs0jsewhD2tgZ0avSSVbkSKSYOnYYi/CErdr/s7AyH3PrIWrIOQDNQoaQlb6Kz3s+rkY66oS CpLgpgYqvOALYCTwDl9njAoGt1ZdvHjw9GW9+QE+ekAWlUiKXQ4UPvHgMBjSXiT81UYxLFXc1 lRXVCI+jI/tNU+Rk91HJViHxqLaD5E2h3yqPv/BOFa7OvnY7UO3iycFcn0dgQ2ho7bCk2Fy9o tnOgfMFSFd8FXfvy0MIOQoDcQ7QerMxB1HlKvfzV9RinDDr7u8d8fczdVx0e7jag5p7UnLGMC 9MbwuaILecevfhTcRBAv0AGHxB25xSylnomtNiSgtg3TMEcW7a0mdh59DquPuKKBBmHhiCyLF EMkyh8Qa+dqEyOR/FbRANrTX/ey4l6Q1PXdGJ0ZXdF5Jmr7g6G4fDwDQ3TiCcVUSbRvqvEKfl sTrS12co+GI6z4kAkA0eqnbvZwEk/7Fx/gqPx1cKjdXodx4izFyoL+8Taou4Ai08ez7eF95hi XSUjdE1YVnR2yUbR4UQ7tL49tdtLJUGfEPjXfqBuJu0wjxCR2YBOwOf5QYZ7HjRyoF1k//KAz yvKoaQ0p4/qFUuGIWtoNYqvbuD3E5/VYMdX7SClhe9/3u1DDALB76n5uwJnszSCDxmOQ3cwIk 85Q35Zvml6qfBrAI6TzGoRjY7M2j3e+Fin7/GWkXp6477TVwtFfPAh4Og== Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On 2021/6/22 =E4=B8=8A=E5=8D=887:14, Asif Youssuff wrote: > Qu, thanks for responding. > > On Mon, Jun 21, 2021 at 3:42 AM Qu Wenruo wrote= : > >> Can you delete some subvolumes/snapshot to free some space? >> >> In such critical case, I don't believe balance will do any help. >> >> Regular file deletion also needs extra metadata, thus maybe only >> subvolumes/snapshots deletion can help. > > I have tried removing snapshots, but the disk continues to go ro - > after remount, the subvolumes are still there. Is there a way to force > a sync of the subvolume removal before the fs goes ro? Maybe you can try "btrfs fi sync" before remount? Thanks, Qu > >