the same environment, update to btrfs-progs 4.5.1, new errors in "fi du"
$ sudo btrfs fi du /media/RAID/owncloud/ 140.00KiB 0.00B - /media/RAID/owncloud//.snapshot/weekly_2016-03-26_07:56:42/docker/postgres 264.00KiB 0.00B - /media/RAID/owncloud//.snapshot/weekly_2016-03-26_07:56:42/docker 0.00B 0.00B - /media/RAID/owncloud//.snapshot/weekly_2016-03-26_07:56:42/owncloud.service 0.00B 0.00B - /media/RAID/owncloud//.snapshot/weekly_2016-03-26_07:56:42/owncloud.setup.txt ... ERROR: Failed to lookup root id - Inappropriate ioctl for device ERROR: cannot check space of '/media/RAID/owncloud/': Unknown error -1 $ sudo btrfs fi du /media/RAID/apps Total Exclusive Set shared Filename 500.00KiB 0.00B - /media/RAID//apps/Drive Snapshot 167.96MiB 0.00B - /media/RAID//apps/vmware .. [46 rows] .. ERROR: Failed to lookup root id - Inappropriate ioctl for device ERROR: cannot check space of '/media/RAID/owncloud/': Unknown error -1 -- 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