We updated a client to 2.3.64-4chaos and tried to mount a 2.3.63-6chaos server. The mount fails with
Using git bisect I found the mount failure was introduced with this patch:
The critical questions at this point are:
- Can we solve this problem by updating both server and client to 2.3.64-4chaos?
- Can we safely upgrade the server, or does the above patch introduce on-disk format incompatibilities?
- Will we be able to safely revert the server to 2.3.63 in case we find problems, or will it write new objects in an incompatible format?