I tested a kernel without the following commits from https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1728739 and I was able to mount the CephFS filesystem successfully:
http://kernel.ubuntu.com/git/ubuntu/ubuntu- xenial.git/commit/?id=f14ca6ac3b198f30ee138f02c3c7d380d165736e http://kernel.ubuntu.com/git/ubuntu/ubuntu- xenial.git/commit/?id=09ade67fc6224440719a94e8c8add556eb036437 http://kernel.ubuntu.com/git/ubuntu/ubuntu- xenial.git/commit/?id=c043f509409e380281403f66c54794efbd5d0f02 http://kernel.ubuntu.com/git/ubuntu/ubuntu- xenial.git/commit/?id=74771960c7794994fd9067cdd8df0725b6ce75f6 http://kernel.ubuntu.com/git/ubuntu/ubuntu- xenial.git/commit/?id=5a03f3043cb617cf2cf5ec9cbd0685d0e86e8b0e http://kernel.ubuntu.com/git/ubuntu/ubuntu- xenial.git/commit/?id=75ee940e71ed7841958cace371a5c79076a0378c I spoke to the kernel team and their plan is to revert and re-upload (likely next week) to restore functionality. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1737033 Title: upgrading linux-image package to 4.4.0-103.126 breaks Ceph network file system connection To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/1737033/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs