How can i tell?
Label: data uuid: a8626d67-4684-4b23-99b3-8d5fa8e7fd69
Total devices 5 FS bytes used 820.00KiB
devid 2 size 1.82TiB used 1.00GiB path /dev/sdb2
devid 3 size 1.82TiB used 1.00GiB path /dev/sdf2
devid 5 size 2.73TiB used 3.00GiB path /dev/sdd2
devid 10 size 2.73TiB used 2.03GiB path /dev/sde2
devid 11 size 3.64TiB used 1.03GiB path /dev/sdc1
Data, RAID10: total=3D2.00GiB, used=3D768.00KiB
Data, RAID1: total=3D1.00GiB, used=3D12.00KiB
System, RAID1: total=3D32.00MiB, used=3D4.00KiB
Metadata, RAID1: total=3D1.00GiB, used=3D36.00KiB
i made a image with `btrfs-image`, when i do -c 9, the file size is 7k, =
so eazy enough to mail if it would be of any use.
Remco
On 04 Feb 2014, at 22:48, Josef Bacik <jba...@fb.com> wrote:
>
> On 02/03/2014 03:51 PM, Remco Hosman - Yerf-it.com wrote:
>> FIrst, a bit of history of the filesystem:
>> used to be 6 disks, now 5. partially raid1 / raid10. been migrating back and
>> forth a few times.
>> As some point, a balance would not complete and would end with 164
>> ENOSPC’ses, while there was plenty of unallocated space on each disk.
>>
>> i scanned for extends larger then 1gig and found a few, so ran a recursive
>> balance of the entire FS.
>>
>> I deceided to empty the filesystem and format it.
>>
>> i pulled most files off it some via btrfs send/receive, some via rsync. but
>> 1 subvol wouldn’t send. i don’t remember the exact error, but it was that a
>> extend could not be found on 1 of the disks.
>>
>> with only a few 100gig of data left, i decided to balance some remaining
>> empty space before doing a `btrfs dev del`, so have another disk to store
>> more data on.
>> but im hitting a snag, i hit a BUG_ON when doing a `btrfs bal start
>> -dusage=2 /mountpoint` :
>>
>> [ 3327.678329] btrfs: found 198 extents
>> [ 3328.117274] btrfs: relocating block group 84473084968960 flags 17
>> [ 3329.278521] btrfs: found 103 extents
>> [ 3331.907931] btrfs: found 103 extents
>> [ 3332.386172] btrfs: relocating block group 84466642518016 flags 17
>> [ 3333.536595] btrfs: found 86 extents
>> [ 3335.982967] btrfs: found 86 extents
>> [ 3336.599555] btrfs (4746) used greatest stack depth: 2744 bytes left
>> [ 3379.073464] btrfs: relocating block group 89878368419840 flags 17
>> [ 3381.608948] btrfs: found 499 extents
>> [ 3383.884696] ------------[ cut here ]------------
>> [ 3383.884720] kernel BUG at fs/btrfs/relocation.c:3405!
>> [ 3383.884731] invalid opcode: 0000 [#1] SMP
>> [ 3383.884742] Modules linked in:
>> [ 3383.884753] CPU: 0 PID: 5663 Comm: btrfs Not tainted 3.13.0 #1
>> [ 3383.884763] Hardware name: System manufacturer System Product
>> Name/E45M1-I DELUXE, BIOS 0405 08/08/2012
>> [ 3383.884778] task: ffff8802360eae80 ti: ffff88010dcaa000 task.ti:
>> ffff88010dcaa000
>> [ 3383.884790] RIP: 0010:[<ffffffff812f0bd5>] [<ffffffff812f0bd5>]
>> __add_tree_block+0x1c5/0x1e0
>> [ 3383.884811] RSP: 0018:ffff88010dcaba38 EFLAGS: 00010202
>> [ 3383.884821] RAX: 0000000000000001 RBX: ffff880039f18000 RCX:
>> 00000000ffffffff
>> [ 3383.884832] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
>> 0000000000000000
>> [ 3383.884843] RBP: ffff88010dcaba90 R08: ffff88010dcab9f4 R09:
>> ffff88010dcab930
>> [ 3383.884854] R10: 0000000000000000 R11: 000000000000047f R12:
>> 0000000000001000
>> [ 3383.884865] R13: ffff88023489c630 R14: 0000000000000000 R15:
>> 0000528d112e4000
>> [ 3383.884876] FS: 00007f8e27e74880(0000) GS:ffff88023ec00000(0000)
>> knlGS:0000000000000000
>> [ 3383.884888] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>> [ 3383.884897] CR2: 00007f60d89f35a8 CR3: 00000001b5ada000 CR4:
>> 00000000000007f0
>> [ 3383.884907] Stack:
>> [ 3383.884941] ffff88010dcabb28 4000ffff812bde34 00a80000528d112e
>> 0000000000000010
>> [ 3383.885012] 0000000000001000 0000000000001000 0000000000000f3a
>> ffff8802348d6990
>> [ 3383.885082] ffff88001cbf5a00 ffff880039f18000 00000000000000b8
>> ffff88010dcabb00
>> [ 3383.885153] Call Trace:
>> [ 3383.885192] [<ffffffff812f1a54>] add_data_references+0x244/0x2e0
>> [ 3383.885232] [<ffffffff812f2a2b>] relocate_block_group+0x56b/0x640
>> [ 3383.885272] [<ffffffff812f2ca2>] btrfs_relocate_block_group+0x1a2/0x2f0
>> [ 3383.885313] [<ffffffff812cbcca>] btrfs_relocate_chunk.isra.27+0x6a/0x740
>> [ 3383.885355] [<ffffffff81281a31>] ? btrfs_set_path_blocking+0x31/0x70
>> [ 3383.885432] [<ffffffff81286816>] ? btrfs_search_slot+0x386/0x960
>> [ 3383.885473] [<ffffffff812c6f07>] ? free_extent_buffer+0x47/0xa0
>> [ 3383.885513] [<ffffffff812ceedb>] btrfs_balance+0x90b/0xea0
>> [ 3383.885553] [<ffffffff812d5ec2>] btrfs_ioctl_balance+0x162/0x520
>> [ 3383.885592] [<ffffffff812d9aed>] btrfs_ioctl+0xcbd/0x25c0
>> [ 3383.885632] [<ffffffff818c094c>] ? __do_page_fault+0x1dc/0x520
>> [ 3383.885673] [<ffffffff81136868>] do_vfs_ioctl+0x2c8/0x490
>> [ 3383.885712] [<ffffffff81136ab1>] SyS_ioctl+0x81/0xa0
>> [ 3383.885752] [<ffffffff818c4f5b>] tracesys+0xdd/0xe2
>> [ 3383.885787] Code: ff 48 8b 4d a8 48 8d 75 b6 4c 89 ea 48 89 df e8 42 e7
>> ff ff 4c 89 ef 89 45 a8 e8 c7 0f f9 ff 8b 45 a8 e9 69 ff ff ff 85 c0 74 d6
>> <0f> 0b 66 0f 1f 84 00 00 00 00 00 b8 f4 ff ff ff e9 50 ff ff ff
>> [ 3383.886001] RIP [<ffffffff812f0bd5>] __add_tree_block+0x1c5/0x1e0
>> [ 3383.886042] RSP <ffff88010dcaba38>
>> [ 3383.886359] ---[ end trace 075209044ce10da3 ]---
>> Anything i can do to resolve / debug the issue?
>>
> Are you using skinny extents at all? Thanks,
>
> Josef
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