Am Freitag, 4. Mai 2012 schrieb Martin Steigerwald:
> Hi!
>
> merkaba:~> btrfs balance start -m /
> ERROR: error during balancing '/' - No space left on device
> There may be more info in syslog - try dmesg | tail
> merkaba:~#19> dmesg | tail -22
> [ 62.918734] CPU0: Package power limit normal
> [ 525.229976] btrfs: relocating block group 20422066176 flags 1
> [ 526.940452] btrfs: found 3048 extents
> [ 528.803778] btrfs: found 3048 extents
> [ 528.988440] btrfs: relocating block group 17746100224 flags 34
> [ 529.116424] btrfs: found 1 extents
> [ 529.247866] btrfs: relocating block group 17611882496 flags 36
> [ 536.003596] btrfs: found 14716 extents
> [ 536.170073] btrfs: relocating block group 17477664768 flags 36
> [ 542.230713] btrfs: found 13170 extents
> [ 542.353089] btrfs: relocating block group 17343447040 flags 36
> [ 547.446369] btrfs: found 9809 extents
> [ 547.663141] btrfs: 1 enospc errors during balance
> [ 629.238168] btrfs: relocating block group 21894266880 flags 34
> [ 629.359284] btrfs: found 1 extents
> [ 629.520614] btrfs: 1 enospc errors during balance
> [ 630.715766] btrfs: relocating block group 21927821312 flags 34
> [ 630.749973] btrfs: found 1 extents
> [ 630.899621] btrfs: 1 enospc errors during balance
> [ 635.872857] btrfs: relocating block group 21961375744 flags 34
> [ 635.906517] btrfs: found 1 extents
> [ 636.038096] btrfs: 1 enospc errors during balance
>
>
> merkaba:~> btrfs filesystem show
> failed to read /dev/sr0
> Label: 'debian' uuid: […]
> Total devices 1 FS bytes used 7.89GB
> devid 1 size 18.62GB used 17.58GB path /dev/dm-0
>
>
> Btrfs Btrfs v0.19
> merkaba:~> btrfs filesystem df /
> Data: total=15.52GB, used=7.31GB
> System, DUP: total=32.00MB, used=4.00KB
> System: total=4.00MB, used=0.00
> Metadata, DUP: total=1.00GB, used=587.83MB
I thought data tree might have been to big, so out of curiousity I tried a
full balance. It shrunk the data tree but it failed as well:
merkaba:~> btrfs balance start /
ERROR: error during balancing '/' - No space left on device
There may be more info in syslog - try dmesg | tail
merkaba:~#19> dmesg | tail -63
[ 89.306718] postgres (2876): /proc/2876/oom_adj is deprecated, please
use /proc/2876/oom_score_adj instead.
[ 159.939728] btrfs: relocating block group 21994930176 flags 34
[ 160.010427] btrfs: relocating block group 21860712448 flags 1
[ 161.188104] btrfs: found 6 extents
[ 161.507388] btrfs: found 6 extents
[ 161.692596] btrfs: relocating block group 21592276992 flags 1
[ 162.804544] btrfs: found 1930 extents
[ 164.615038] btrfs: found 1930 extents
[ 164.836342] btrfs: relocating block group 21323841536 flags 1
[ 165.261189] btrfs: found 714 extents
[ 166.405800] btrfs: found 714 extents
[ 166.599482] btrfs: relocating block group 21055406080 flags 1
[ 167.554796] btrfs: found 1933 extents
[ 168.984707] btrfs: found 1933 extents
[ 169.169526] btrfs: relocating block group 20786970624 flags 1
[ 170.829402] btrfs: found 2602 extents
[ 172.817614] btrfs: found 2602 extents
[ 173.020840] btrfs: relocating block group 19885195264 flags 1
[ 177.102572] btrfs: found 5924 extents
[ 179.853234] btrfs: found 5924 extents
[ 180.124753] btrfs: relocating block group 18828230656 flags 1
[ 185.524803] btrfs: found 15255 extents
[ 190.716666] btrfs: found 15255 extents
[ 190.968648] btrfs: relocating block group 17754488832 flags 1
[ 194.653684] btrfs: found 4975 extents
[ 197.213332] btrfs: found 4975 extents
[ 197.427145] btrfs: relocating block group 16269705216 flags 1
[ 203.988076] btrfs: found 9435 extents
[ 206.879416] btrfs: found 9435 extents
[ 207.094286] btrfs: relocating block group 15195963392 flags 1
[ 214.046474] btrfs: found 12789 extents
[ 218.398271] btrfs: found 12789 extents
[ 218.685567] btrfs: relocating block group 13048479744 flags 1
[ 226.665003] btrfs: found 10176 extents
[ 230.115369] btrfs: found 10176 extents
[ 230.418228] btrfs: relocating block group 11840520192 flags 1
[ 238.866773] btrfs: found 10862 extents
[ 241.769074] btrfs: found 10862 extents
[ 242.030420] btrfs: relocating block group 10364125184 flags 1
[ 253.602784] btrfs: found 15486 extents
[ 257.715518] btrfs: found 15486 extents
[ 257.982685] btrfs: relocating block group 8619294720 flags 1
[ 267.146921] btrfs: found 13806 extents
[ 271.022675] btrfs: found 13806 extents
[ 271.268562] btrfs: relocating block group 6471811072 flags 1
[ 278.922272] btrfs: found 14490 extents
[ 283.589668] btrfs: found 14490 extents
[ 283.838663] btrfs: relocating block group 5398069248 flags 1
[ 292.536548] btrfs: found 15367 extents
[ 296.030960] btrfs: found 15367 extents
[ 296.346493] btrfs: relocating block group 4324327424 flags 1
[ 304.276714] btrfs: found 10555 extents
[ 306.996284] btrfs: found 10555 extents
[ 307.285261] btrfs: relocating block group 3250585600 flags 1
[ 317.425150] btrfs: found 26305 extents
[ 322.227915] btrfs: found 26305 extents
[ 322.537047] btrfs: relocating block group 2176843776 flags 1
[ 331.945877] btrfs: found 17104 extents
[ 335.615238] btrfs: found 17079 extents
[ 335.897953] btrfs: relocating block group 1103101952 flags 1
[ 347.888295] btrfs: found 28458 extents
[ 352.736987] btrfs: found 28458 extents
[ 353.099659] btrfs: 1 enospc errors during balance
merkaba:~> btrfs filesystem df /
Data: total=10.00GB, used=7.31GB
System, DUP: total=64.00MB, used=4.00KB
System: total=4.00MB, used=0.00
Metadata, DUP: total=1.12GB, used=587.20MB
merkaba:~> btrfs filesystem show
failed to read /dev/sr0
Label: 'debian' uuid: […]
Total devices 1 FS bytes used 7.88GB
devid 1 size 18.62GB used 12.38GB path /dev/dm-0
For the sake of it I tried another time. It failed again:
martin@merkaba:~> dmesg | tail -32
[ 353.099659] btrfs: 1 enospc errors during balance
[ 537.057375] btrfs: relocating block group 32833011712 flags 36
[ 537.141258] btrfs: relocating block group 31759269888 flags 1
[ 537.284200] btrfs: relocating block group 30685528064 flags 1
[ 537.427898] btrfs: relocating block group 29611786240 flags 1
[ 541.103070] btrfs: found 8018 extents
[ 543.033896] btrfs: found 8018 extents
[ 543.242608] btrfs: relocating block group 28538044416 flags 1
[ 554.136612] btrfs: found 28088 extents
[ 557.621779] btrfs: found 28088 extents
[ 557.964021] btrfs: relocating block group 27464302592 flags 1
[ 568.547296] btrfs: found 27207 extents
[ 572.411358] btrfs: found 27207 extents
[ 572.749233] btrfs: relocating block group 26390560768 flags 1
[ 583.383545] btrfs: found 23359 extents
[ 586.907206] btrfs: found 23359 extents
[ 587.280967] btrfs: relocating block group 25316818944 flags 1
[ 597.054363] btrfs: found 22546 extents
[ 600.206597] btrfs: found 22546 extents
[ 600.444821] btrfs: relocating block group 24243077120 flags 1
[ 610.921027] btrfs: found 17593 extents
[ 613.609900] btrfs: found 17593 extents
[ 613.900155] btrfs: relocating block group 23169335296 flags 1
[ 624.355734] btrfs: found 18764 extents
[ 627.252739] btrfs: found 18764 extents
[ 627.567920] btrfs: relocating block group 22095593472 flags 1
[ 637.448364] btrfs: found 21593 extents
[ 641.256887] btrfs: found 21593 extents
[ 641.479140] btrfs: relocating block group 22062039040 flags 34
[ 641.695614] btrfs: relocating block group 22028484608 flags 34
[ 641.840179] btrfs: found 1 extents
[ 641.965843] btrfs: 1 enospc errors during balance
merkaba:~#19> btrfs filesystem df /
Data: total=10.00GB, used=7.31GB
System, DUP: total=32.00MB, used=4.00KB
System: total=4.00MB, used=0.00
Metadata, DUP: total=1.12GB, used=586.74MB
merkaba:~> btrfs filesystem show
failed to read /dev/sr0
Label: 'debian' uuid: […]
Total devices 1 FS bytes used 7.88GB
devid 1 size 18.62GB used 12.32GB path /dev/dm-0
Btrfs Btrfs v0.19
Well, in order to be gentle to the SSD again I stop my experiments now ;).
Thanks,
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7
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