About 'permission denied' when testing zonefs.

[yigexintaibuhaoderen]

"Hello, I encountered some issues while using ZoneFS on Ubuntu system based on Linux 5.15, and I hope to seek some advice. Firstly, I created a virtual block device nullb0 using the zbd Tool, and then used zonefs-tool to create ZoneFS on nullb0, which was subsequently mounted to the directory /mnt/zonefs. However, I can only perform write tests using the dd command. When I attempt to use testing tools like fio or filebench on /mnt/zonefs, I encounter permission denied errors and cannot gain write permissions. Even attempts to modify permissions using commands like chmod have been unsuccessful. Could you please advise me on how to conduct performance testing using testing tools?"