On Mon, Feb 22, 2016 at 1:43 PM Leonid Isaev <leonid.isaev@xxxxxxxxxxxxxxxxx> wrote: > See this: > > http://marc.merlins.org/perso/btrfs/post_2014-05-04_Fixing-Btrfs-Filesystem-Full-Problems.html > > Basically, when your btrfs is full, just create a loopback device, add it > to > the array, rebalance and then remove the device. This is what I had to do > this > Sunday :) > I don't know if you saw the beginning of the thread, but what started this whole mess was I allowed a raid6 btrfs filesystem to fill up, and couldn't balance it even after adding a real disk. (I tried a loopback device first.)