[dm-crypt] Closing LUKS lvm partition times out on shutdown

Konrad conrad.francois.artus at googlemail.com
Tue Jan 14 15:51:54 CET 2014

There are two LUKS containers - one SSD (lvm: root btrfs+swap 
patrtition) and one HDD (lvm: three btrfs data partitions).

When I shutdown, system stalls for a good minute because it can't 
unmount or close LUKS containers or both.
Here is what I can see:

And here's the log from the moment systemd reboot command is issued:

This is causing about a minute of delay upon shutdown.

What is wrong? Before moving to LUKS and LVM I didn't have that issue.

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