Hi! I'm having an issue with the 3.17rc5 kernel which prevents having multiple subvolumes of the same disk mounted. I'm not sure exactly the cause. I thought it might be because in my system the root file system is itself a subvolume of the disk I'm trying to mount. But if I create a second disk image with two subvolumes, the same thing occurs -- I can only mount one of them at a time. I've attached the output of a few commands, please let me know if you want more info (I'm not subscribed to the list, please keep me in To:). We've bisected and found that the exact commit that changed the behaviour is this one: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b96de000bc8bc9688b3a2abea4332bd57648a49f I'm afraid I'm not familiar with the Btrfs code base and so I don't understand the exact meaning of the comments in that commit. Thanks Sam -- Sam Thursfield, Codethink Ltd. Office telephone: +44 161 236 5575