Hi,
rockpro64
Linux rockpro64 4.4.174-rockchip64 #16 SMP Sun Feb 10 16:50:35 CET 2019 aarch64 aarch64 aarch64 GNU/Linux
as root:
# btrfs qgroup show /
--> ERROR: can't list qgroups: quotas not enabled (thats not the problem)
but a dmesg
BTRFS error (device sda1): could not find root 8
occurs ..
There is a old (2015) discussion about a missing group
(create a dedicated qgroup ioctl)
https://www.spinics.net/lists/linux-btrfs/msg49628.html
https://www.spinics.net/lists/linux-btrfs/msg49635.html
May you have a idea ?!
Best regards - and you make a great job!
Jean