On 2020/2/11 下午10:17, telsch wrote: > Dear devs, > > > > after upgrading from kernel 4.19.101 to 5.5.2 i got read time tree block > error as > > described here: > > https://btrfs.wiki.kernel.org/index.php/Tree-checker#For_end_users > > > > Working with kernel 4.19.101: > > > > Linux Arch 4.19.101-1-lts #1 SMP Sat, 01 Feb 2020 16:35:36 +0000 x86_64 > GNU/Linux > > > > btrfs --version > > btrfs-progs v5.4 > > > > btrfs fi show > > Label: none uuid: 56e753f4-1346-49ad-a34f-e93a0235b82a > > Total devices 1 FS bytes used 92.54GiB > > devid 1 size 95.14GiB used 95.14GiB path /dev/mapper/home > > > > btrfs fi df /home > > Data, single: total=94.11GiB, used=91.95GiB > > System, single: total=31.00MiB, used=12.00KiB > > Metadata, single: total=1.00GiB, used=599.74MiB > > GlobalReserve, single: total=199.32MiB, used=0.00B > > > > After upgrading to kernel 5.5.2: > > > > [ 13.413025] BTRFS: device fsid 56e753f4-1346-49ad-a34f-e93a0235b82a > devid 1 transid 468295 /dev/dm-1 scanned by systemd-udevd (417) > > [ 13.589952] BTRFS info (device dm-1): force zstd compression, level 3 > > [ 13.589956] BTRFS info (device dm-1): disk space caching is enabled > > [ 13.594707] BTRFS info (device dm-1): bdev /dev/mapper/home errs: wr > 0, rd 47, flush 0, corrupt 0, gen 0 > > [ 13.622912] BTRFS info (device dm-1): enabling ssd optimizations > > [ 13.624300] BTRFS critical (device dm-1): corrupt leaf: root=5 > block=122395779072 slot=10 ino=265, invalid inode generation: has > 18446744073709551492 expect [0, 468296] An older kernel caused underflow/garbage generation. Much strict tree checker is detecting it and rejecting the tree block to prevent further corruption. It can be fixed in by btrfs-progs v5.4 and later, by using 'btrfs check --repair' Early btrfs-progs can't detect nor fix it. Thanks, Qu > > [ 13.624381] BTRFS error (device dm-1): block=122395779072 read time > tree block corruption detected > > > > > > Booting from 4.19 kernel can mount fs again.
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