Re: Massive filesystem corruption since kernel 5.2 (ARCH)

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Le 29/07/2019 à 15:35, Qu Wenruo a écrit :
> This means btrfs metadata CoW is broken.

I remember having had exactly the same kind of messages on the main
machine's SSD a week ago (before I had to recreate, backup and restore it)

> Did the system went through some power loss?

No *THIS* filesystem is an external backup. It's typical use is plug,
backup, umount (properly), unplug.

So there's very little reasons such a filsystem would en up broken.

> If not, then it's btrfs or lower layer causing the problem.
> 
> Did you have any btrfs without LUKS?

Not much...

Here's the rest of the (still running) btrsf check :

# btrfs check /dev/mapper/luks-UUID
Opening filesystem to check...
Checking filesystem on /dev/mapper/luks-UUID
UUID: ==somehing==
[1/7] checking root items
[2/7] checking extents
parent transid verify failed on 2137144377344 wanted 7684 found 7499
parent transid verify failed on 2137144377344 wanted 7684 found 7499
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
leaf parent key incorrect 2137144377344
bad block 2137144377344
ERROR: errors found in extent allocation tree or chunk allocation
[3/7] checking free space cache
[4/7] checking fs roots
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
parent transid verify failed on 2137144377344 wanted 7684 found 7499
Ignoring transid failure
Wrong key of child node/leaf, wanted: (1797454, 96, 23), have:
(18446744073709551606, 128, 2538887163904)
Wrong generation of child node/leaf, wanted: 7499, have: 7684


Uh I'm at a loss...

ॐ

-- 
Swâmi Petaramesh <swami@xxxxxxxxxxxxxx> PGP 9076E32E



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