Hi, I ran into an odd situation where after a snap rollback, a file appears to be incorrectly truncated. The file in question is part of a ceph-osd backing store. I've attached a grepped and annotated excerpt from the osd log detailing the operations on this file since creation. Ceph sha1: 8603cce1efbdbba9a3054d938394d673b59fd4d1 (wip-sam-btrfs in ceph git) Kernel sha1: f74d66a3ec1b62a663451083091ccb8341d721ec (ceph kernel git, testing branch, based on 3.14) I've got a bunch of additional logging, let me know if there is anything else I can grab. Also, let me know if there is additional information which would be good to have if it recurs. Thanks! -Sam