On 2020-01-30 4:10 p.m., Martin Steigerwald wrote: > > I am done with re-balancing experiments. > It should be pretty easy to fix.. use the metadata_ratio=1 mount option, then write enough to force the allocation of more data space,, In your earlier attempt, you wrote 500MB, but from your btrfs filesystem usage, you had over 1GB of allocated but unused space. If you wrote and deleted, say, 20GB of zeroes, that should force the allocation of metatada space to get you past the global reserve size that is causing this bug,, (Assuming this bug is even impacting you. I was unclear from your messages if you are seeing any ill effects besides the misreporting in df.) Note: Make sure you don't have anything taking automatic snapshots during the 20GB write/delete. I would create a new subvolume for it to avoid that.
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