On 2013-03-16 Adam Thompson wrote:
Stale NFS handles? Try lsof|grep MD instead?
No NFS on this box.
However, you gave me an idea to look in ps:
root 361 2 0 16:08 ? 00:00:00 [md1_raid1] root 768 2 0 16:08 ? 00:00:00 [jbd2/md1-8]
So those might be keeping md1 "busy"? Or are those the very things that mdadm --stop should halt? The md1_raid1 is familiar but I've never seen jbd2/md1-8 before.