Hey, guys
This is on my ArchLinux desktop. Current values as follows and the exact
error is currently reproducible. Let me know if you want me to run any
tests/etc. I've made an image (76MB) and can send the link to interested
parties.
I have come across this once before in the last few weeks. The
workaround at that time was to run multiple balances with incrementing
-musage and -dusage values. Whether or not that was a real, imaginary,
or temporary fix is another story. I have backups but the issue doesn't
yet appear to cause any symptoms other than these errors.
The drive is a second-hand 60GB Intel 330 recycled from a decommissioned
server. The mkfs was run on Nov 4th before I started a migration from
spinning rust. According to my pacman logs btrfs-progs was on 3.17-1 and
kernel was 3.17.1-1
root ~ $ uname -a
Linux watricky.invalid.co.za 3.17.4-1-ARCH #1 SMP PREEMPT Fri Nov 21
21:14:42 CET 2014 x86_64 GNU/Linux
root ~ $ btrfs fi show /
Label: 'arch-btrfs-root' uuid: 782a0edc-1848-42ea-91cb-de8334f0c248
Total devices 1 FS bytes used 17.44GiB
devid 1 size 40.00GiB used 20.31GiB path /dev/sdc1
Btrfs v3.17.2
root ~ $ btrfs fi df /
Data, single: total=18.00GiB, used=16.72GiB
System, DUP: total=32.00MiB, used=16.00KiB
Metadata, DUP: total=1.12GiB, used=738.67MiB
GlobalReserve, single: total=256.00MiB, used=0.00B
Relevant kernel lines:
root ~ $ journalctl -k | grep ^Dec\ 01\ 21\:
Dec 01 21:10:01 watricky.invalid.co.za kernel: BTRFS info (device sdc1):
relocating block group 46166704128 flags 36
Dec 01 21:10:03 watricky.invalid.co.za kernel: BTRFS info (device sdc1):
found 2194 extents
Dec 01 21:10:03 watricky.invalid.co.za kernel: BTRFS info (device sdc1):
relocating block group 45059407872 flags 34
Dec 01 21:10:03 watricky.invalid.co.za kernel: BTRFS info (device sdc1):
found 1 extents
Dec 01 21:10:03 watricky.invalid.co.za kernel: BTRFS info (device sdc1):
1 enospc errors during balance
-------- Original Message --------
Subject: Cron <root@watricky> /usr/bin/btrfs balance start -musage=90 /
2>&1 > /dev/null
Date: Mon, 01 Dec 2014 21:10:03 +0200
From: (Cron Daemon) <r...@watricky.valid.co.za>
To: bren...@swiftspirit.co.za
ERROR: error during balancing '/' - No space left on device
There may be more info in syslog - try dmesg | tail
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