Can you ro mount it and: btrfs fi show /mnt btrfs fi df /mnt
And then next update the btrfs-progs to something newer like 4.9.2 or 4.10.2 and then do another 'btrfs check' without repair. And then separately do it again with --mode=lowmem and post both sets of results? Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html