(In reply to Goldwyn Rodrigues from comment #9) > I have been trying to recreate this issue (especially the trace in comment > #3) but have not succeeded so far. Well, I don't expect this to be reproducible within a few minutes. It happened here in my build server after an uptime of more than two weeks. > Richard: Does btrfs check report your filesystem is healthy? The check upon boot reports it as healthy. Since it is my rootfs I cannot run the check directly. > Ronan: Are you getting these backtraces in the kernel log as well? > > btrfs balance is a relatively I/O intensive operation because it has to move > around chunks. However, if the tree is balanced frequently, then each > balance should not take as much time. The reporter here seem to observe the opposite. ;-)