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I got a little problem with btrfs.
Suddenly a lot of operations end with "no space left on device". Now you will probably think: "rtfm and google you fool" ... which I did. Both. None of the symptoms I found quite match what I experience, nor did the typical solutions work.
So, is the metadata full? Doesn't seem so:
# btrfs fi df /
Data, single: total=170.00GiB, used=147.39GiB
System, single: total=32.00MiB, used=48.00KiB
Metadata, single: total=3.00GiB, used=1.79GiB
GlobalReserve, single: total=274.52MiB, used=0.00B
Even with the generous buffer btrfs reserves there should be enough space left for quite a few files.
Did I rebalance? Yes, a full rebalance:
btrfs balance start /
Did I reboot (afterwards)? Yes.
Remount with clear_cache? Yes.
I'm out of ideas. What is going on here? Any ideas how I get my system back to be usable?
Thanks!
Last edited by aksdb (2018-01-03 16:14:03)
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What is "a lot of operations" and are your sure "no space left on device" relates to the inspected device?
df -h
df -hi
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Dammit you are right. I was too focused on the root partition.
As it seems a rogue background process constantly filled up my /tmp partition. Therefore bash autocompletion, code compilation, etc. all failed. But not because they could not write to the system partition, but because they could not write to the /tmp partition *facepalm*.
Thanks for pulling me out of tunnel vision and pointing me in the right direction :-)
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