Update: My most recent scrub just finished. It found a few hundred errors, but many files that were not mentioned by the scrub at all are still unreadable. I started another scrub and it is finding new errors and correcting them, but I aborted it since I do feel like constantly scrubbing is making progress. Much more interestingly, I ran `btrfs rescue chunk-recover` and it reported that the majority (2847/3514) of my chunks were unrecoverable. The output from the `chunk-recover` is too long to include in a pastebin. Is there anything in particular that might be of interest? Also, I take the existence of unrecoverable chunks to mean that the filesystem is not salvageable, is that true?
