In my dmesg logs I get following errors a lot:

[232671.710741] BTRFS warning (device nvme0n1p2): csum failed root 257 ino 2496314 off 946159616 csum 0xb7eb9798 expected csum 0x3803f9f6 mirror 1
[232671.710746] BTRFS error (device nvme0n1p2): bdev /dev/nvme0n1p2 errs: wr 0, rd 0, flush 0, corrupt 19297, gen 0
[232673.984324] BTRFS warning (device nvme0n1p2): csum failed root 257 ino 2496314 off 946159616 csum 0xb7eb9798 expected csum 0x3803f9f6 mirror 1
[232673.984329] BTRFS error (device nvme0n1p2): bdev /dev/nvme0n1p2 errs: wr 0, rd 0, flush 0, corrupt 19298, gen 0
[232673.988851] BTRFS warning (device nvme0n1p2): csum failed root 257 ino 2496314 off 946159616 csum 0xb7eb9798 expected csum 0x3803f9f6 mirror 1

I’ve run btrfs scrub start -Bd /home as described here. The report afterwards claim everything is fine.

btrfs scrub status /home
UUID:             145c0d63-05f8-43a2-934b-7583cb5f6100
Scrub started:    Fri Aug  4 11:35:19 2023
Status:           finished
Duration:         0:07:49
Total to scrub:   480.21GiB
Rate:             1.02GiB/s
Error summary:    no errors found
  • Agility0971OP
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    21 year ago
    root@archiso ~ # lsblk
    NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
    loop0         7:0    0   673M  1 loop /run/archiso/airootfs
    sda           8:0    0 476.9G  0 disk 
    └─sda1        8:1    0 476.9G  0 part 
    sdb           8:16   0 119.2G  0 disk 
    └─sdb1        8:17   0 119.2G  0 part 
    sdc           8:32   1  14.4G  0 disk 
    ├─sdc1        8:33   1   778M  0 part 
    └─sdc2        8:34   1    15M  0 part 
    nvme0n1     259:0    0 931.5G  0 disk 
    ├─nvme0n1p1 259:1    0   511M  0 part 
    └─nvme0n1p2 259:2    0   931G  0 part 
    root@archiso ~ # btrfs check /dev/nvme0n1p2
    Opening filesystem to check...
    Checking filesystem on /dev/nvme0n1p2
    UUID: 145c0d63-05f8-43a2-934b-7583cb5f6100
    [1/7] checking root items
    [2/7] checking extents
    [3/7] checking free space tree
    [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)
    found 514161029120 bytes used, no error found
    total csum bytes: 496182240
    total tree bytes: 1464221696
    total fs tree bytes: 813809664
    total extent tree bytes: 57655296
    btree space waste bytes: 248053148
    file data blocks allocated: 4385471590400
     referenced 512920408064
    btrfs check /dev/nvme0n1p2  4.15s user 1.66s system 62% cpu 9.316 total