On 09/25/2015 12:53 PM, Jan Schermer wrote:
What are you looking for in lsof? Did you try looking for the major/minor
number of the rbd device?
Things that could hold the device are devicemapper, lvm, swraid and possibly
many more, not sure if all that shows in lsof output...
I searched for the rbd's mounted block device name, of course, which
didn't turn up anything. Just now I tried searching for the minor device
number, but I didn't see anything obviously useful. lsof usually just
shows processes, so if the the device is being held by a kernel module
or inaccurate refcount, lsof wouldn't help.
Jeff
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