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UEK 6 (Update 0) BTRFS enospc issue
Just a heads up. Kernel 5.4.17-2011.0.7.el7uek is suffering from a statfs space reporting bug for BTRFS which results in regular occurrence of ENOSPC independent of filesystem space used. Workarounds (balance + metadata_ratio=1 mount option) so far have not helped. We will probably have to revert to UEK5 as a result.
Patched already in 5.4.18 (for example).
https://bugzilla.redhat.com/show_bug.cgi?id=1790740
https://lore.kernel.org/stable/[email protected]/T/#u
related: https://lore.kernel.org/linux-btrfs/[email protected]/T/#u
Can this be added to known issues?
Answers
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I have a feeling this might be fixed in UEK6 Update 1 (5.4.17-2036.100.6.1), based on the source code of btrfs/super.c.
The rpm changelog gives no clue of this though and not yet confirmed by any testing.