The Ongoing BcacheFS Filesystem Stability Controversy
https://hackaday.com/2025/06/10/the-ongoing-bcachefs-filesystem-stability-controversy/
@hackaday I'm starting to wonder if modern next-gen filesystems are approaching an inherent limit of human ability to mentally model and manage complexity.
Microsoft failed so hard with ReFS that I literally had to go look up the name again. Btrfs is fine as a relatively simple, single disk filesystem, but becomes an untrustworthy mess if you push it too hard. Then here's bcachefs.
Why do we keep failing so hard at reimplementing things that Sun and NetApp already did?
@jimsalter @hackaday I worked on a Linux container manager. We kept hitting semantic rough edges in various COW filesystems to the extent that we revisited at least one filesystem over the course of a single year (it was an XP team, so the cycle was generated by bugs encountered rather than any more thoughtful considerations).
Ultimately, the file system was made pluggable, so users could pick their own poison.
So it's no surprise that a relative newcomer is unstable.