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
  • EinfachUnersetzlich
    4·
    11 months ago

    What RAID profile are you using on your filesystem? Checksum failures on RAID1/5/6/10 aren’t fatal because the block is read from a different mirror.

      • EinfachUnersetzlich
        2·
        11 months ago

        You’d probably know unless you didn’t set it up yourself!

        btrfs device usage /mountpoint

        • Agility0971@lemmy.worldOPEnglish
          1·
          11 months ago

          Well I never set up any raid on my systems

          root@archiso /mnt/arch # btrfs device usage .
/dev/nvme0n1p2, ID: 1
   Device size:           931.01GiB
   Device slack:              0.00B
   Data,single:           520.01GiB
   Metadata,DUP:            6.00GiB
   System,DUP:             16.00MiB
   Unallocated:           404.99GiB