Re: [PATCH] btrfs: Allow read-only mount with corrupted extent tree

[Josef Bacik]

On 8/11/21 4:07 PM, Dāvis Mosāns wrote:
> Currently if there's any corruption at all in extent tree
> (eg. even single bit) then mounting will fail with:
> "failed to read block groups: -5" (-EIO)
> It happens because we immediately abort on first error when
> searching in extent tree for block groups.
>
> Now with this patch if `ignorebadroots` option is specified
> then we handle such case and continue by removing already
> created block groups and creating dummy block groups.

Already done and queue'ed up for the next release

btrfs: rescue: allow ibadroots to skip bad extent tree when reading block group 
items

thanks,

Josef