On Mon, 13 Jan 2020, Chris Murphy wrote: > This is the latest patchset as of about a week ago, and actually I'm > not seeing it in 5.5rc6. A tested fix may not be ready yet. > https://patchwork.kernel.org/project/linux-btrfs/list/?series=223921 > > Your best bet is likely to stick with 5.4.10 and just use mount option > metadata_ratio=1. This won't cause some other weird thing to happen. I have remounted the file system with that option set when it was still running, but it didn't do anything (as expected I'd assume), its usage was still at 100 percent. Now I had a chance to reboot the system (with that option set), but usage was still at 100%, so I ran "btrfs balance" once more (although you recommended against it :)) and a reboot later everything seems "normal" again. Thanks for the explanations and hints. I must admit it's kinda surprising to me that these ENOSPC errors are still happening with btrfs, I somehow assumed that these kinks had been ironed out by now. But as you said, this may have re-appeared with 5.4 and it's not a big deal for me right now, so I can live with the mount option set and wait for 5.5 to be released :-) Thanks again, Christian. -- BOFH excuse #123: user to computer ratio too high.
