On Mon, Nov 29, 2021 at 11:49:30AM +0900, Naohiro Aota wrote:

For zoned btrfs, we re-dirty a freeing tree node to ensure btrfs write
the region and not to leave a write hole on a zoned device. Current
code failed to re-dirty a node when the tree-log tree's depth >=
2. This leads to a transaction abort with -EAGAIN.

Fix the issue by properly re-dirty a node on walking up the tree.

Link: https://github.com/kdave/btrfs-progs/issues/415

Can you please add more information from the issue that's relevant to
the problem? Eg. the stacktraces, reproducer etc.