# cryptsetup 1.1.3 processing "cryptsetup luksClose storage --debug"
# Locking memory.
# Allocating crypt device context by device storage.
# Initialising device-mapper backend, UDEV is enabled.
# Detected dm-crypt target of version 1.10.0.
# dm status storage  OF   [16384]
# Releasing device-mapper backend.
# Allocating crypt device /dev/sdb9 context.
# Trying to open and read device /dev/sdb9.
# Initialising device-mapper backend, UDEV is enabled.
# Deactivating volume storage.
# dm status storage  OF   [16384]
# Udev cookie 0xd4da0c2 (semid 688131) created
# Udev cookie 0xd4da0c2 (semid 688131) incremented
# Udev cookie 0xd4da0c2 (semid 688131) incremented
# Udev cookie 0xd4da0c2 (semid 688131) assigned to dm_task type 2 with flags 0x0
# dm remove storage  OF   [16384]
# Udev cookie 0xd4da0c2 (semid 688131) decremented
# storage: Stacking NODE_DEL (replaces other stacked ops)
semid 688131: semop failed for cookie 0xd4da0c2: incorrect semaphore state
Failed to set a proper state for notification semaphore identified by cookie value 223191234 (0xd4da0c2) to initialize waiting for incoming notifications.
# Udev cookie 0xd4da0c2 (semid 688131) destroyed
# Releasing crypt device /dev/sdb9 context.
# Releasing device-mapper backend.
# Unlocking memory.
Command successful.