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=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 3940BC10F25 for ; Tue, 10 Mar 2020 01:41:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EBBD620637 for ; Tue, 10 Mar 2020 01:41:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="FIjLBHad" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726252AbgCJBli (ORCPT ); Mon, 9 Mar 2020 21:41:38 -0400 Received: from mout.gmx.net ([212.227.15.19]:54225 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726106AbgCJBlh (ORCPT ); Mon, 9 Mar 2020 21:41:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1583804495; bh=9/U+xK95qVwtzWK3CfdDKRwdfUSGdze8SHQWl9yvJl0=; h=X-UI-Sender-Class:Subject:To:References:From:Date:In-Reply-To; b=FIjLBHadtbk6ClwKja1KSeC7BHKIS0hXibCCE0i2KpTxaSXwG/dCoPFPD/hLqdGnQ oDKehCmCG653prT7T1hp7/4w2NDKFR4b+Usz6docxiXHMNNPN+lyTsrcijJGXRV6bo 1uIpI3se8f2ALjz7o+LpmupRX4/ty2+FXEI0FB/o= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [0.0.0.0] ([149.28.201.231]) by mail.gmx.com (mrgmx005 [212.227.17.184]) with ESMTPSA (Nemesis) id 1MFbW0-1j7axZ2qti-00H4DB; Tue, 10 Mar 2020 02:41:35 +0100 Subject: Re: ENOSPC in btrfs_drop_snapshot with 5.4.21 To: Martin Raiber , "linux-btrfs@vger.kernel.org" References: <01020170c1c26e04-031eb2cc-f2da-4ba3-b259-986730cfae7a-000000@eu-west-1.amazonses.com> 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: Tue, 10 Mar 2020 09:41:27 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <01020170c1c26e04-031eb2cc-f2da-4ba3-b259-986730cfae7a-000000@eu-west-1.amazonses.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="5JdemBgzQOzlYYt5zvjGgt2PUhYYgFh2e" X-Provags-ID: V03:K1:apVzDXmrgMrA0uBFtKZgkGPHYQvPsvGh7hMFiRdwAaf3lcYE8zw eMXeu6gTM/ZArNsL2ipMMkECg3JZZWz0eQiOVp0zqec8lJiXyfzpbLT8sG3Fsc6zQWgFi8u acxDu0Tv9y1MkT4TDalQaBHgsadDjaHUKy1uxskh607RReWdURNCehd/wpm4wMdju2GTS7X n02T+qXJQeoIAuMlAWzaA== X-UI-Out-Filterresults: notjunk:1;V03:K0:z+R11N9k4QQ=:ZFcXWYvvhVaV/wQ54vhJ/w IRzUHNqno90+vCgYoS/Sqv4rIEABYfWZ9pXrvdeymqek2DE+XM+/jFAs9irCimNxfZIvWqGnm /FOJsdnPZS6OUI+P4OgdmKpM/4vKuOJPf9jK0DRyenTNkdYLs4TywUOk+a0GbuV+dE/3UpS4W u3MtY1sETw6+matvuJOdQYMb+i2H/2/jHvuJ4sZ1tq2d6kiLD38DFMpxsla3tLMd65cxNgBLX H0kEakY9kSam/fe1Uo1VKGjLeIbzGPLTxRlrRkfDXfmb/U8etOoIpxL6l5U0tjmpKEqCDE4lq VszEVjyy8yeOIORpzPz+ndbncsDPOA+DOQZMXz4akWTN8X7Y/fx9DNR2V7oHKtdcsndNsAt6G olzTIbmTjCVSizXIO36ED1ABIQy2WhXhCvlS50RoDdApn6kY74OPxmWScRfN7TZxs+H/jxRMx F2tBwlcklECmznjmlAw0tMM+/h5JJdrT5MzmokBt6Lk5J/tTDEpYgLMz7UlO/V9jp65+Dm+Cy 5rp1qAJYODL/0Gbv5IXmbs9WjCBYCZCnHSqh68nQn8kkAe7eG1kIH0KoE69iZnwPgf9S0/Rx0 V7q0nZDOJLnQzAHK2G8O1e37DjvyncpgMaasJTeQ64gDtzA1hIfuJt6axm9Co8eDvvutPklol ZPpzEF7D4P6Ewn15B0DBq8aqDiTaUb7qCjG/VrJU5PB/PbvyM8f9dZVcEd08vJSjxY4BOkD30 0G+g8/L/5caawCoT+QgLptgaO8/oeA1u/wzKj105dy888ZiEij4gPYlZjRDHYTV/e0NF15s8l hc31Ulh+n1kbLOVslFrUb1BAUd7JjzNKK87SQ0C/fLZrCwcN8MFs3H4zUq8UyZjJ3RsU2RQrY YR8hzi/NFRzWe1gp+BM/LJmY59Y8ONSo3AWxUBW7ClfipcyUlMcBgDCcTxFjEXzjRBe+reiQm 7qPw8LVkmcEikQYv0k/ozM0GwBwE0yxTviVzMs6mW0nF1abLynwvA7N6OjOp6Jgu05BSmmpp2 cMeKuK0/g/45u/hFXmS3p0KpA+/NnInEmGPQ66Z80wsXATsAOxNtrMLQdI9ima7Ojy095ezIP 8gjCG+ZDr+XLplTqINyPZTD1jtOt8HMaYbF3Jr+wTb3sBGMfVSpqijb3wEux9cKU9RgeppxbY 1NnAr2f1xc7XqbMi9iOpebmKXppFNZNVhxe3NbQvxWqs2Rc5fxA0NCE1UfDWNMrSQDcI5G/U7 2TpsuejccHzT51No1 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) --5JdemBgzQOzlYYt5zvjGgt2PUhYYgFh2e Content-Type: multipart/mixed; boundary="Bm6UQmJS9ddIDV45Y1vk5UuGj44UVDsdA" --Bm6UQmJS9ddIDV45Y1vk5UuGj44UVDsdA Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2020/3/10 =E4=B8=8A=E5=8D=888:05, Martin Raiber wrote: > Hi, >=20 > I get a enospc to remount-ro with 5.4.21. Details: Sorry, the attached dmesg doesn't contain the transaction abort message. It only has the flooded ENOSPC from enospc_debug option. Thanks, Qu >=20 > Linux 5.4.21 #1 SMP Fri Feb 21 03:20:26 CET 2020 x86_64 GNU/Linux >=20 > btrfs fi usage /media/btrfs (after remount-ro) > Overall: > =C2=A0=C2=A0=C2=A0 Device size:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 511.99GiB > =C2=A0=C2=A0=C2=A0 Device allocated:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 511.99GiB > =C2=A0=C2=A0=C2=A0 Device unallocated:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 0.00B > =C2=A0=C2=A0=C2=A0 Device missing:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 0.00B > =C2=A0=C2=A0=C2=A0 Used:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0 443.68GiB > =C2=A0=C2=A0=C2=A0 Free (estimated):=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 54.94GiB=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= (min: 54.94GiB) > =C2=A0=C2=A0=C2=A0 Data ratio:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0 1.00 > =C2=A0=C2=A0=C2=A0 Metadata ratio:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 1.0= 0 > =C2=A0=C2=A0=C2=A0 Global reserve:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 512.00MiB=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0 (used: 0.00B) >=20 > Data,single: Size:490.98GiB, Used:436.04GiB (88.81%) > =C2=A0=C2=A0 /dev/mapper/LUKS-RC-cd46b6b4909845918eaa285c532476dc=C2=A0= 490.98GiB >=20 > Metadata,single: Size:21.01GiB, Used:7.65GiB (36.40%) > =C2=A0=C2=A0 /dev/mapper/LUKS-RC-cd46b6b4909845918eaa285c532476dc=C2=A0= =C2=A0 21.01GiB >=20 > System,single: Size:4.00MiB, Used:80.00KiB (1.95%) > =C2=A0=C2=A0 /dev/mapper/LUKS-RC-cd46b6b4909845918eaa285c532476dc=C2=A0= =C2=A0=C2=A0 4.00MiB >=20 > Unallocated: > =C2=A0=C2=A0 /dev/mapper/LUKS-RC-cd46b6b4909845918eaa285c532476dc=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0 0.00B >=20 > Mount options: > /dev/mapper/LUKS-RC-cd46b6b4909845918eaa285c532476dc on /media/btrfs > type btrfs > (ro,noatime,compress-force=3Dzstd:3,nossd,space_cache=3Dv2,enospc_debug= ,skip_balance,metadata_ratio=3D8,subvolid=3D5,subvol=3D/) >=20 > btrfs fi df /media/btrfs > Data, single: total=3D490.98GiB, used=3D436.04GiB > System, single: total=3D4.00MiB, used=3D80.00KiB > Metadata, single: total=3D21.01GiB, used=3D7.65GiB > GlobalReserve, single: total=3D512.00MiB, used=3D0.00B >=20 > dmesg attached. >=20 --Bm6UQmJS9ddIDV45Y1vk5UuGj44UVDsdA-- --5JdemBgzQOzlYYt5zvjGgt2PUhYYgFh2e Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAl5m8EcACgkQwj2R86El /qiIxAf9G7dpi81Ic+iEyhh1yR52UImk/eOdLdHxWPmygZU6/wn7Z/U2e5LAwFmH +9xNzUUe0hh1TaWeTvL3Eha6VldbXtRRBgM56VW8gu5Pd5J1McTrfwc8Wg3pv//g k8ElCsKkP9bANsIlQ+S60p1ppdaWtmJ6lOcBbmrMyLYhqO+nUd5xrpXMBNOWwD0n bs4i74iXOVVNZrTmXXJqPpfsvywnzHIRCGDCMSMUmtM/B0omPmbSildJwtJm28tw Wi15ApIlkBmaCms/Req366Om/e6g4ARc1LYnDBm7iUMUMmlAjsV9AHqv0NIV73ux zx6FlC6+VXtDkJ7NTjg9chWto2GdNg== =Ox2p -----END PGP SIGNATURE----- --5JdemBgzQOzlYYt5zvjGgt2PUhYYgFh2e--