On 2021/7/17 上午8:57, Dave T wrote:

quoted

But before that, would you mind to run "btrfs check" again on the fs to
see if it reports any error?

quoted

I'm interested to see the result though.

First I will send you the full output of the command I ran:
btrfs check --repair --init-csum-tree /dev/mapper/xyz
It's a lot of output - around 50MB before I zip it up.
How about if I send that to you as an attachment and mail it directly
to you, not the list?

It works for me either way.

Next step: I have remounted the old fs and I'm going to run a scrub on it.

Scrub shouldn't detect much thing else, but it won't hurt anyway.

Then I will unmount it and run btrfs check again and send you the
output. Again, I'll send it to you privately, OK?

That's fine to me.

THanks,
Qu