[Please CC me since I'm not subscribed to the list] Hi, I've tried to `/usr/bin/btrfs fi defragment -r` my btrfs partition, but it's failed w/ "No space left on device" and now I can't get any free space on that partition (deleting some files or adding new device doesn't help). During defrag I've used `space_cache=v2` mount option, but remounted FS w/ `clear_cache` flag since then. Also I've deleted about 50Gb of files and added new 250Gb disk since then:
>$ df -h /mnt/xxx/ >Filesystem Size Used Avail Use% Mounted on >/dev/sdc1 2,1T 1,8T 37G 99% /mnt/xxx >$ sudo /usr/bin/btrfs fi show >Label: none uuid: 8a65465d-1a8c-4f80-abc6-c818c38567c3 > Total devices 3 FS bytes used 1.78TiB > devid 1 size 931.51GiB used 931.51GiB path /dev/sdc1 > devid 2 size 931.51GiB used 931.51GiB path /dev/sdb1 > devid 3 size 230.41GiB used 0.00B path /dev/sdd1 >$ sudo /usr/bin/btrfs fi usage /mnt/xxx/ >Overall: > Device size: 2.04TiB > Device allocated: 1.82TiB > Device unallocated: 230.41GiB > Device missing: 0.00B > Used: 1.78TiB > Free (estimated): 267.23GiB (min: 152.03GiB) > Data ratio: 1.00 > Metadata ratio: 2.00 > Global reserve: 512.00MiB (used: 0.00B) > >Data,RAID0: Size:1.81TiB, Used:1.78TiB > /dev/sdb1 928.48GiB > /dev/sdc1 928.48GiB > >Metadata,RAID1: Size:3.00GiB, Used:2.30GiB > /dev/sdb1 3.00GiB > /dev/sdc1 3.00GiB > >System,RAID1: Size:32.00MiB, Used:176.00KiB > /dev/sdb1 32.00MiB > /dev/sdc1 32.00MiB > >Unallocated: > /dev/sdb1 1.01MiB > /dev/sdc1 1.00MiB > /dev/sdd1 230.41GiB >$ sudo /usr/bin/btrfs balance start -dusage=66 /mnt/xxx/ >Done, had to relocate 0 out of 935 chunks >$ sudo /usr/bin/btrfs balance start -dusage=67 /mnt/xxx/ >ERROR: error during balancing '/mnt/xxx/': No space left on device >There may be more info in syslog - try dmesg | tail I assume that there is something wrong with metadata, since I can copy files to FS. I'm on 4.6.2 vanilla kernel and using btrfs-progs-4.6, btrfs-debugfs output can be found here: https://gist.githubusercontent.com/ojab/1a8b1f83341403a169a8e66995c7c3da/raw/61621d22f706d7543a93a3d005415543af9a0db0/gistfile1.txt. Any hint what else can I try to fix the issue? //wbr ojab -- 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
