“The offending patch was merged in 4.16-🤦rc🤦4 and was 🤦promptly🤦 applied to 🤦stable🤦 kernels 4.14.25 and 4.15.8. The patch causes a corruption in several superblock items on big-endian machines because of messed up endianity conversions. The damage is manually repairable. A filesystem cannot be mounted again after it has been unmounted once. We do a full revert and not a fixup so stable can pick that patch ASAP. ”
― https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=093e037ca88e1767693bc6bcb2df3f49c6be68c7

#btrfs development practices

(PS I am a btrfs user.)