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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 BA107C3A5A3 for ; Tue, 27 Aug 2019 10:59:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8ED6320656 for ; Tue, 27 Aug 2019 10:59:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728878AbfH0K7k (ORCPT ); Tue, 27 Aug 2019 06:59:40 -0400 Received: from relay7-d.mail.gandi.net ([217.70.183.200]:38027 "EHLO relay7-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725793AbfH0K7k (ORCPT ); Tue, 27 Aug 2019 06:59:40 -0400 X-Originating-IP: 88.191.131.7 Received: from [192.168.1.167] (unknown [88.191.131.7]) (Authenticated sender: swami@petaramesh.org) by relay7-d.mail.gandi.net (Postfix) with ESMTPSA id 5AECE20006; Tue, 27 Aug 2019 10:59:37 +0000 (UTC) Subject: Re: Massive filesystem corruption since kernel 5.2 (ARCH) To: Qu Wenruo , linux-btrfs@vger.kernel.org Cc: Christoph Anton Mitterer References: <11e4e889f903ddad682297c4420faeb0245414cf.camel@scientia.net> <18d24f2f-4d33-10aa-5052-c358d4f7c328@petaramesh.org> <5aefca34-224a-0a81-c930-4ccfcd144aef@petaramesh.org> <4bd70aa2-7ad0-d5c6-bc1f-22340afaac60@petaramesh.org> <370697f1-24c9-c8bd-01a7-c2885a7ece05@gmx.com> From: =?UTF-8?Q?Sw=c3=a2mi_Petaramesh?= Openpgp: preference=signencrypt Autocrypt: addr=swami@petaramesh.org; prefer-encrypt=mutual; keydata= xsDiBEP8C/QRBADPiYmcQstlx+HdyR2FGH+bDgRZ0ZJBAx6F0OPW+CmIa6tlwdhSFtCTJGcw eqCgSKqzLS+WBd6qknpGP3D2GOmASt+Juqnl+qmX8F/XrkxSNOVGGD0vkKGX4H5uDwufWkuV 7kD/0VFJg2areJXx5tIK4+IR0E0O4Yv6DmBPwPgNUwCg0OdUy9lbCxMmshwJDGUX2Y/hiDsD /3YTjHYH2OMTg/5xXlkQgR4aWn8SaVTG1vJPcm2j2BMq1LUNklgsKw7qJToRjFndHCYjSeqF /Yk2Cbeez9qIk3lX2M59CTwbHPZAk7fCEVg1Wf7RvR2i4zEDBWKd3nChALaXLE3mTWOE1pf8 mUNPLALisxKDUkgyrwM4rZ28kKxyA/960xC5VVMkHWYYiisQQy2OQk+ElxSfPz5AWB5ijdJy SJXOT/xvgswhurPRcJc+l8Ld1GWKyey0o+EBlbkAcaZJ8RCGX77IJGG3NKDBoBN7fGXv3xQZ mFLbDyZWjQHl33wSUcskw2IP0D/vjRk/J7rHajIk+OxgbuTkeXF1qwX2yc0oU3fDom1pIFBl dGFyYW1lc2ggPHN3YW1pQHBldGFyYW1lc2gub3JnPsJ+BBMRAgA+AhsDAh4BAheABQsJCAcC BhUKCQgLAgQWAgMBFiEEzB/joG05+rK5HJguL8JcHZB24y4FAl0Cdr0FCSJsbEkACgkQL8Jc HZB24y7PrwCeIj82AsMnwgOebV274cWEyR/yaDsAn25VN/Hw+yzkeXWAn5uIWJ+ZsoZkzsNN BEP8DFwQEAC77CwwyVuzngvfFTx2UzFwFOZ25osxSYE1Hpw249kbeK09EYbvMYzcWR34vbS0 DhxqwJYH9uSuMZf/Jp4Qa/oYN4x4ZMeOGc5+BdigcetQQnZkIpMaCdFm6HK/A4aqCjqbPpvF 3Mtd4CXcl1v94pIWq/n9JrLNclUA7rWnVKkPDqJ8WaxzDWm2YH9l1H+K+JbU/ow+Rk+y5xqp jL3XpOsVqf34RQhFUyCoysvvxH8RdHAeKfWTf5x6P8jOvxB6XwOnKkX91kC2N7PzoDxY7llY Uvy+ehrVVpaKLJ1a1R2eaVIHTFGO//2ARn6g4vVPMB93FLNR0BOGzEXCnnJKO5suw9Njv/aL bdnVdDPt9nc1yn3o8Bx/nZq1asX3zo/PnMz4Up24l6GrakJFMBZybX/KxA0CXDK6Rq4HSphI y/+v0I27FiQm7oT4ykiKnfFuh16NWM8rPV0UQgBLxSBoz327bUpsRuSrYh/oYBbE6p5KYHlB Acpix7wQ61OdUihBX73/AAx0Gd53fc0d4AYeKy4JXMl2uP2aiIvBeBaOKY5tzIq9gnL5K6rr xt4PSeONoLdVo8m8OyYeao1zvpgeNZ6FJ+VCYGBtsZEYIi80Ez5V0PpgAh7kSY1xbimDqKQx A/Jq2Q7sXBCdUeHN5cDgOZLKoJRvat/rhNaCSgUNfhUc2wADBRAAskb9Eolxs20NCfs424b3 /NRI7SVn9W2hXvI61UYfs19lfScnn9YfmiN7IdB2cLCE6OiAbSsK3Aw8HDnEc0AdylVNOiIK su7C4+CW6HKMyIUm1q2qv8RwW3K8eE8+S4+4/5k+38T39BlC3HcLSxS9vfgqmF6mF6VeD5Mn DDbrm7G06UFm1Eh5PKFSzYKZ4i9rD9R4ivDCxRBT9Cibw36iigdp14z87/Qq/NoFe8j9zrbs 3/3XZ22NxS0G8aNi0ejgDeYVRUUudBXK7zjV/pJDS4luB9iOiblysJmdKI3EegHlAcapTASn qsJ42O/Uv9jdSPPruZrMbeRKILqOl/YtI0orHGW/UzMYf/vbYWZ82azkPQqKDZF3Tb3h6ZHt csifD/J9IN7xh71aPf8ayIAus1AtPFtPUTjIJXqXIvAlNcDpaEpxn8xxcbVdcRBU/odASwsX IPdz8/HV5esod/QhR6/16kkKyOJNF5M/qC3PLur8Zu4iRu8EPiPr6vTAjhLrfXbQycuVc4CV c+hGlyYSW0xFaT+XF/4d+KZirsu07P5w/OCu+oRhH4StCOz58KrtuaX1dK5nLk6XkM4nKZhC 7kmpnPqS6BkdJngkozuKQZMJahIvFglag90xgLrOl5MtO55yr/0j4S4a8GxTkVs70GttcMKN TYaSBqmVw+0A3ILCZgQYEQIAJgIbDBYhBMwf46BtOfqyuRyYLi/CXB2QduMuBQJdAnbyBQki bGwWAAoJEC/CXB2QduMur1wAn1X3FcsmMdhMfiYwXw7LVw4FAIeWAJ9kLGer22WFWR2z2iU7 BtUAN08OPA== Message-ID: Date: Tue, 27 Aug 2019 12:59:36 +0200 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: <370697f1-24c9-c8bd-01a7-c2885a7ece05@gmx.com> Content-Type: text/plain; charset=utf-8 Content-Language: fr-FR Content-Transfer-Encoding: 8bit Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hi again, Le 27/08/2019 à 08:21, Qu Wenruo a écrit : > I'd prefer to do a "btrfs check --readonly" anyway (which also checks > free space cache), then go nospace_cache if you're concerned. Here's what I dit, here's what I got...: root@PartedMagic:~# uname -r 5.1.5-pmagic64 root@PartedMagic:~# btrfs --version btrfs-progs v5.1 root@PartedMagic:~# btrfs check --readonly /dev/PPL_VG1/LINUX [1/7] checking root items [2/7] checking extents [3/7] checking free space cache block group 52677312512 has wrong amount of free space, free space cache has 266551296 block group has 266584064 failed to load free space cache for block group 52677312512 [4/7] checking fs roots [5/7] checking only csums items (without verifying data) [6/7] checking root refs [7/7] checking quota groups skipped (not enabled on this FS) Opening filesystem to check... Checking filesystem on /dev/PPL_VG1/LINUX UUID: 25fede5a-d8c2-4c7e-9e7e-b19aad319044 found 87804731392 bytes used, no error found total csum bytes: 79811080 total tree bytes: 2195832832 total fs tree bytes: 1992900608 total extent tree bytes: 101548032 btree space waste bytes: 380803707 file data blocks allocated: 626135830528 referenced 124465221632 root@PartedMagic:~# mkdir /hd root@PartedMagic:~# mount -t btrfs -o noatime,clear_cache /dev/PPL_VG1/LINUX /hd (Waited for no disk activity and top showing no btrfs processes) root@PartedMagic:~# umount /hd root@PartedMagic:~# mount -t btrfs -o noatime /dev/PPL_VG1/LINUX /hd root@PartedMagic:~# grep btrfs /proc/self/mountinfo 40 31 0:43 / /hd rw,noatime - btrfs /dev/mapper/PPL_VG1-LINUX rw,ssd,space_cache,subvolid=5,subvol=/ root@PartedMagic:~# umount /hd root@PartedMagic:~# btrfs check --readonly /dev/PPL_VG1/LINUX [1/7] checking root items [2/7] checking extents [3/7] checking free space cache block group 52677312512 has wrong amount of free space, free space cache has 266551296 block group has 266584064 failed to load free space cache for block group 52677312512 [4/7] checking fs roots [5/7] checking only csums items (without verifying data) [6/7] checking root refs [7/7] checking quota groups skipped (not enabled on this FS) Opening filesystem to check... Checking filesystem on /dev/PPL_VG1/LINUX UUID: 25fede5a-d8c2-4c7e-9e7e-b19aad319044 found 87804207104 bytes used, no error found total csum bytes: 79811080 total tree bytes: 2195832832 total fs tree bytes: 1992900608 total extent tree bytes: 101548032 btree space waste bytes: 380804019 file data blocks allocated: 626135306240 referenced 124464697344 root@PartedMagic:~# So it seems that mounting with “clear_cache” did not actually clear the cache and fix the issue ? ॐ -- Swâmi Petaramesh PGP 9076E32E