From: Qu Wenruo <quwenruo.btrfs@gmx.com>
To: Ian Kelling <iank@fsf.org>, linux-btrfs@vger.kernel.org
Cc: Filipe Manana <fdmanana@kernel.org>
Subject: Re: I got a write time tree block corruption detected
Date: Mon, 11 Oct 2021 07:57:37 +0800 [thread overview]
Message-ID: <c3b0c77a-f5e4-ccc2-f0b4-cf1a6491f29d@gmx.com> (raw)
In-Reply-To: <87ily8y9c8.fsf@fsf.org>
On 2021/10/8 02:32, Ian Kelling wrote:
> # uname -a
> Linux hostname.fsf.org 5.8.0-59-generic #66~20.04.1 SMP Sat Jul 10 19:20:41 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
> # btrfs --version
> btrfs-progs v5.10.1
>
>
> I was running this command:
> btrfs balance start -dconvert=raid1c3 -mconvert=raid1c3 /srv/backup-online
>
> Note, the command was a bit of a mistake since the filesystem was
> already raid1c3 with 3 16tb disks. It failed after about a day, this was
> in dmesg:
>
> [Thu Oct 7 12:01:59 2021] BTRFS info (device dm-3): relocating block group 17366831333376 flags data|raid1c3
> [Thu Oct 7 12:44:01 2021] ------------[ cut here ]------------
> [Thu Oct 7 12:44:01 2021] BTRFS: Transaction aborted (error -28)
This is the root cause, ENOSPC during balance.
This seems to be related to the metadata overcommiting bug that when
several different sized disks are involved, btrfs may have over-estimate
how much space its metadata can use.
Normally it won't cause long-lasting problem as long as you have enough
metadata space left.
For your RAID1C3 setup, you need at least 3 disks with enough
unallocated space.
[...]
>
> I unmounted the filesystem, then tried a remount like so:
> mount -o skip_balance /dev/mapper/btrfs0 /mnt/backup-tmp
> which failed, and the following was in dmesg:
>
> [Thu Oct 7 12:57:11 2021] BTRFS info (device dm-3): disk space caching is enabled
> [Thu Oct 7 12:57:11 2021] BTRFS info (device dm-3): has skinny extents
> [Thu Oct 7 12:58:08 2021] BTRFS info (device dm-3): start tree-log replay
> [Thu Oct 7 13:04:36 2021] BTRFS: error (device dm-3) in btrfs_replay_log:2362: errno=-22 unknown (Failed to recover log tree)
> 2021 Oct 7 13:04:36 monolith BTRFS: error (device dm-3) in btrfs_replay_log:2362: errno=-22 unknown (Failed to recover log tree)
> [Thu Oct 7 13:04:41 2021] BTRFS critical (device dm-3): corrupt leaf: root=5 block=5558935797760 slot=0 ino=161138910, invalid nlink: has 2 expect no more than 1 for dir
> [Thu Oct 7 13:04:41 2021] BTRFS info (device dm-3): leaf 5558935797760 gen 129446 total ptrs 88 free space 3 owner 5
> [Thu Oct 7 13:04:41 2021] item 0 key (161138910 1 0) itemoff 16123 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40700
> [Thu Oct 7 13:04:41 2021] item 1 key (161138911 1 0) itemoff 15963 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 2 key (161138913 1 0) itemoff 15803 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 3 key (161138914 1 0) itemoff 15643 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 4 key (161138916 1 0) itemoff 15483 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 5 key (161138918 1 0) itemoff 15323 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 6 key (161138919 1 0) itemoff 15163 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40700
> [Thu Oct 7 13:04:41 2021] item 7 key (161138921 1 0) itemoff 15003 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 8 key (161138922 1 0) itemoff 14843 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 9 key (161138923 1 0) itemoff 14683 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 10 key (161138926 1 0) itemoff 14523 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 11 key (161138928 1 0) itemoff 14363 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 12 key (161138929 1 0) itemoff 14203 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 13 key (161138930 1 0) itemoff 14043 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 14 key (161138933 1 0) itemoff 13883 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 11903 mode 100640
> [Thu Oct 7 13:04:41 2021] item 15 key (161138934 1 0) itemoff 13723 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 16 key (161138935 1 0) itemoff 13563 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 17 key (161138937 1 0) itemoff 13403 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 18 key (161138938 1 0) itemoff 13243 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 19 key (161138939 1 0) itemoff 13083 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 20 key (161138941 1 0) itemoff 12923 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 21 key (161138942 1 0) itemoff 12763 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 22 key (161138944 1 0) itemoff 12603 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 23 key (161138945 1 0) itemoff 12443 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 24 key (161138947 1 0) itemoff 12283 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 25 key (161138948 1 0) itemoff 12123 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 26 key (161138949 1 0) itemoff 11963 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 27 key (161138951 1 0) itemoff 11803 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 103 mode 100600
> [Thu Oct 7 13:04:41 2021] item 28 key (161138952 1 0) itemoff 11643 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 29 key (161138954 1 0) itemoff 11483 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 30 key (161138955 1 0) itemoff 11323 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 31 key (161138956 1 0) itemoff 11163 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 32 key (161138957 1 0) itemoff 11003 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 33 key (161138959 1 0) itemoff 10843 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 34 key (161138961 1 0) itemoff 10683 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 35 key (161138962 1 0) itemoff 10523 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 36 key (161138963 1 0) itemoff 10363 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 37 key (161138965 1 0) itemoff 10203 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 38 key (161138966 1 0) itemoff 10043 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 39 key (161138968 1 0) itemoff 9883 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 40 key (161138969 1 0) itemoff 9723 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 41 key (161138971 1 0) itemoff 9563 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 42 key (161138972 1 0) itemoff 9403 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 43 key (161138974 1 0) itemoff 9243 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 44 key (161138975 1 0) itemoff 9083 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 45 key (161138976 1 0) itemoff 8923 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 46 key (161138978 1 0) itemoff 8763 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 47 key (161138979 1 0) itemoff 8603 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 48 key (161138980 1 0) itemoff 8443 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 29858047 mode 100644
> [Thu Oct 7 13:04:41 2021] item 49 key (161138982 1 0) itemoff 8283 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 50 key (161138983 1 0) itemoff 8123 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 51 key (161138984 1 0) itemoff 7963 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 52 key (161138985 1 0) itemoff 7803 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 53 key (161138987 1 0) itemoff 7643 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 54 key (161138988 1 0) itemoff 7483 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 55 key (161138990 1 0) itemoff 7323 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 56 key (161138991 1 0) itemoff 7163 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 57 key (161138993 1 0) itemoff 7003 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 58 key (161138994 1 0) itemoff 6843 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 59 key (161138996 1 0) itemoff 6683 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 60 key (161138997 1 0) itemoff 6523 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 61 key (161138999 1 0) itemoff 6363 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 62 key (161139000 1 0) itemoff 6203 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 63 key (161139002 1 0) itemoff 6043 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 64 key (161139003 1 0) itemoff 5883 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 65 key (161139005 1 0) itemoff 5723 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 66 key (161139006 1 0) itemoff 5563 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 67 key (161139007 1 0) itemoff 5403 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 68 key (161139008 1 0) itemoff 5243 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 69 key (161139010 1 0) itemoff 5083 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 70 key (161139011 1 0) itemoff 4923 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 71 key (161139012 1 0) itemoff 4763 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 72 key (161139014 1 0) itemoff 4603 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 73 key (161139015 1 0) itemoff 4443 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 74 key (161139016 1 0) itemoff 4283 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 75 key (161139017 1 0) itemoff 4123 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 76 key (161139019 1 0) itemoff 3963 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 77 key (161139020 1 0) itemoff 3803 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 78 key (161139021 1 0) itemoff 3643 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 79 key (161139023 1 0) itemoff 3483 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 80 key (161139024 1 0) itemoff 3323 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 81 key (161139025 1 0) itemoff 3163 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 82 key (161139027 1 0) itemoff 3003 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] item 83 key (161139028 1 0) itemoff 2843 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 40755
> [Thu Oct 7 13:04:41 2021] item 84 key (161139029 1 0) itemoff 2683 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 85 key (161139031 1 0) itemoff 2523 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 101 mode 100600
> [Thu Oct 7 13:04:41 2021] item 86 key (161139032 1 0) itemoff 2363 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100644
> [Thu Oct 7 13:04:41 2021] item 87 key (161139034 1 0) itemoff 2203 itemsize 160
> [Thu Oct 7 13:04:41 2021] inode generation 129446 size 0 mode 100600
> [Thu Oct 7 13:04:41 2021] BTRFS error (device dm-3): block=5558935797760 write time tree block corruption detected
CC Filipe to see if the bug is already fixed.
This is only for write-time tree checker, so it doesn't write the
corrupted data onto disk, and again no long lasting effect.
The cause is the log replay code, which I guess Filipe has already fixed
in newer kernels.
Anyway, you can discard the log by "btrfs rescue zero-log" and
everything will be OK again (as long as you have enough metadata space).
Thanks,
Qu
> [Thu Oct 7 13:04:42 2021] BTRFS: error (device dm-3) in btrfs_commit_transaction:2366: errno=-30 Readonly filesystem (Error while writing out transaction)
> [Thu Oct 7 13:04:42 2021] BTRFS warning (device dm-3): Skipping commit of aborted transaction.
> [Thu Oct 7 13:04:42 2021] BTRFS: error (device dm-3) in cleanup_transaction:1939: errno=-30 Readonly filesystem
> 2021 Oct 7 13:04:41 monolith BTRFS critical (device dm-3): corrupt leaf: root=5 block=5558935797760 slot=0 ino=161138910, invalid nlink: has 2 expect no more than 1 for dir
> 2021 Oct 7 13:04:42 monolith BTRFS: error (device dm-3) in btrfs_commit_transaction:2366: errno=-30 Readonly filesystem (Error while writing out transaction)
> 2021 Oct 7 13:04:42 monolith BTRFS: error (device dm-3) in cleanup_transaction:1939: errno=-30 Readonly filesystem
> [Thu Oct 7 13:04:46 2021] BTRFS error (device dm-3): open_ctree failed
>
> I searched for the error and came upon
> https://btrfs.wiki.kernel.org/index.php/Tree-checker , which said to
> email here. Any help is appreciated, I'd like to get this filesystem
> working again as soon as possible.
>
> I'm currently running btrfs check /dev/dm-3
>
prev parent reply other threads:[~2021-10-10 23:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-07 18:32 I got a write time tree block corruption detected Ian Kelling
2021-10-07 20:54 ` Ian Kelling
2021-10-10 14:14 ` Ian Kelling
2021-10-10 18:00 ` Zygo Blaxell
2021-10-10 20:52 ` Ian Kelling
2021-10-10 23:57 ` Qu Wenruo [this message]
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