Hi guys -
I'm trying to convert a disk from single (/dev/sdc1) to RAID1 (dev/sdd1), and the filesystem was previously ext4 but the conversion seemed to go just fine, and I have no snapshots. System and metadata convert, and almost all my data converts, but there are 70 stubborn GB (14 blocks of 5GB each) that refuse to convert and I get ENOSPC errors when trying to reallocate them.
Here's my vital stats: (on kernel 3.14-rc4):
root@ossy:/usr/src/btrfs-progs# /usr/src/btrfs-progs/btrfs fi show
Label: MyBook uuid: c99cbefb-6a56-41e2-8f99-19f8b5f67884
Total devices 2 FS bytes used 1.09TiB
devid 1 size 1.82TiB used 1.12TiB path /dev/sdc1
devid 2 size 1.82TiB used 1.05TiB path /dev/sdd1
Btrfs v3.12
root@ossy:/usr/src/btrfs-progs# /usr/src/btrfs-progs/btrfs fi df /mymedia
Data, RAID1: total=1.04TiB, used=1.03TiB
Data, single: total=70.00GiB, used=64.98GiB
System, RAID1: total=32.00MiB, used=160.00KiB
Metadata, RAID1: total=2.00GiB, used=1.33GiB
I've already done a -dusage=0 and -dusage=5 balance and that cleans up anything that gets left around when these 14 blocks fail get moved. When mounting with enospc_debug I get messages like this for each block with the problem:
Mar 3 11:58:16 ossy kernel: [52724.423024] BTRFS: block group 935262683136 has 5368709120 bytes, 5321801728 used 0 pinned 0 reserved [readonly]
Mar 3 11:58:16 ossy kernel: [52724.423025] BTRFS info (device sdd1): block group has cluster?: no
Mar 3 11:58:16 ossy kernel: [52724.423026] BTRFS info (device sdd1): 0 blocks of free space at or bigger than bytes is
Mar 3 11:58:16 ossy kernel: [52724.423027] BTRFS: block group 942778875904 has 5368709120 bytes, 5309296640 used 0 pinned 0 reserved [readonly]
Mar 3 11:58:16 ossy kernel: [52724.423028] BTRFS info (device sdd1): block group has cluster?: no
Mar 3 11:58:16 ossy kernel: [52724.423029] BTRFS info (device sdd1): 0 blocks of free space at or bigger than bytes is
I don't have the space to reformat and if this is a genuine bug I'm sure you guys want to fix it too. What else can I do to resolve or help?
Sincerely,
Michael Russo, Systems Engineer
PaperSolve, Inc.
268 Watchogue Road
Staten Island, NY 10314
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