While using RSE's 'snapshot' tool with a ZFS-based system I observed that calling 'snapshot make' on a drive that has a mounted snapshot causes a panic. It would appear that the 'zfs rename' call inside the utility being executed to rename a snapshot that is mounted causes the panic. Unfortunately I don't have a dump because the system appeared to hang during the panic (no automatic reboot), so I had to manually power cycle it to get it back up. Fix: Workaround: Don't 'zfs rename' a mounted snapshot. It'd be nice, however, if the OS blocked the operations and didn't panic. How-To-Repeat: 1. Create zfs snapshot of drive. 2. Mount zfs snapshot somewhere on system. 3. Use 'zfs rename' to chnage the name of the mounted snapshot. 4. Observe kernel panic.
Responsible Changed From-To: freebsd-bugs->freebsd-fs Over to maintainer(s).
Responsible Changed From-To: freebsd-fs->pjd I'll take this one.
State Changed From-To: open->feedback Unfortunately I'm unable to reproduce the problem you reported. 'zfs rename' on mounted snapshot works just fine. Is there anything else I should try?
For bugs matching the following criteria: Status: In Progress Changed: (is less than) 2014-06-01 Reset to default assignee and clear in-progress tags. Mail being skipped