On 2019/8/12 下午12:24, Chris Murphy wrote: > On Sun, Mar 10, 2019 at 5:20 PM Chris Murphy wrote: >> >> On Sat, Mar 2, 2019 at 11:18 AM Chris Murphy wrote: >>> >>> Sending URL for dump-tree output offlist. Conversation should still be on-list. >> >> >> Any more information required from me at this point? > > This file system has been on a shelf since the problem happened. Is > the lack of COW repairs with btrfs check solved? Can this file system > be fixed? Maybe --init-extent-tree is worth a shot? > > Latest btrfs check has solved the problem of bad CoW. In fact it's solved in btrfs-progs v5.1 release. So, if you run btrfs check --clear-space-cache v1 again, it shouldn't cause transid mismatch problem any more. Although IIRC that fs already got transid error, thus enhanced btrfs-check won't help much to solve the existing transid mismatch problem. Thanks, Qu