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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

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[unsolved] btrfs corruption? (lemmy.world)

submitted 1 year ago* (last edited 1 year ago) by Agility0971@lemmy.world to c/linux@lemmy.ml

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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

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[–] Agility0971@lemmy.world 2 points 1 year ago (1 children)

RAID? how can I check? I'm not using RAID as far as I know

[–] EinfachUnersetzlich@lemm.ee 2 points 1 year ago (1 children)

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

btrfs device usage /mountpoint

[–] Agility0971@lemmy.world 1 points 1 year 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