Re: 4.11.3: BTRFS critical (device dm-1): unable to add free space :-17 => btrfs check --repair runs clean

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On Tue, Jun 20, 2017 at 5:12 PM, Marc MERLIN <marc@xxxxxxxxxxx> wrote:

> I'm now going to remount this with nospace_cache to see if your guess about
> space_cache was correct.
> Other suggestions also welcome :)

What results do you get with lowmem mode? It won't repair without
additional patches, but might give a dev a clue what's going on. I
regularly see normal mode check finds no problems, and lowmem mode
finds problems. Lowmem mode is a total rewrite so it's a different
implementation and can find things normal mode won't.


-- 
Chris Murphy
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