Recently hit that on Focal due to the fact that quotas were enabled by LXD.
This renders the system completely unresponsive if you use btrfs as a rootfs with btrfs-transaction or btrfs-cleaner kernel threads hogging a 100% of 1 CPU core. Booting using a live USB, disabling quotas and temporarily moving /etc/systemd/system/snap-lxd-* files out helps (followed by `snap disable lxd` until it gets updated with https://github.com/lxc/lxd/pull/7032). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1765998 Title: FS access deadlock with btrfs quotas enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1765998/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
