我使用的是 17.04，每次关机时都会看到这个错误闪烁。
猫/etc/fstab
# /etc/fstab: static file system information.
UUID=5d47eab8-0ece-441c-80bd-983de1bcbf55 / ext4 errors=remount-ro,noatime 0 1
# /boot/efi was on /dev/nvme0n1p1 during installation
UUID=5A37-2794 /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0
/dev/mapper/nvme0n1p4_crypt /crypt ext4 defaults,noatime 0 2
/crypt/home /home none defaults,bind 0 0
/crypt/mysql /var/lib/mysql none defaults,bind 0 0
猫/等/crypttab
# <target name> <source device> <key file> <options>
nvme0n1p4_crypt UUID=9c0da76e-727a-40f2-8050-20d2a9ab97ae none luks,discard
journalctl -b -1 -x 显示错误：
Sep 21 21:27:12 meowko dbus[1086]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Sep 21 21:27:12 meowko NetworkManager[1096]: <info> [1506025632.7451] exiting (success)
Sep 21 21:27:12 meowko wpa_supplicant[1392]: wlp2s0: CTRL-EVENT-TERMINATING
Sep 21 21:27:12 meowko systemd[1]: Stopped (with error) /dev/disk/by-id/dm-name-nvme0n1p4_crypt.
-- Subject: Unit dev-disk-by\x2did-dm\x2dname\x2dnvme0n1p4_crypt.device has finished shutting down
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit dev-disk-by\x2did-dm\x2dname\x2dnvme0n1p4_crypt.device has finished shutting down.
Sep 21 21:27:12 meowko systemd[1]: Stopped (with error) /sys/devices/virtual/block/dm-0.
-- Subject: Unit sys-devices-virtual-block-dm\x2d0.device has finished shutting down
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit sys-devices-virtual-block-dm\x2d0.device has finished shutting down.
Sep 21 21:27:12 meowko systemd[1]: Stopped (with error) /dev/dm-0.
-- Subject: Unit dev-dm\x2d0.device has finished shutting down
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit dev-dm\x2d0.device has finished shutting down.
Sep 21 21:27:12 meowko systemd[1]: Stopped WPA supplicant.
-- Subject: Unit wpa_supplicant.service has finished shutting down
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit wpa_supplicant.service has finished shutting down.
Sep 21 21:27:12 meowko systemd[1]: Stopped (with error) /dev/disk/by-id/dm-uuid-CRYPT-LUKS1-9c0da76e727a40f2805020d2a9ab97ae-nvme0n1p4_crypt.
Sep 21 21:27:12 meowko systemd[1]: Stopped (with error) /dev/disk/by-uuid/77a337c5-60a1-4fd3-a94c-3c20eab278ac.
Sep 21 21:27:12 meowko dbus[1086]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.nm-dispatcher.service': Refusing activation, D-Bus is shutting down.
uname -a
Linux meowko 4.10.0-35-generic #39-Ubuntu SMP
Wed Sep 13 07:46:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
相关（？）lshw输出
description: Non-Volatile memory controller
product: NVMe SSD Controller SM951/PM951
vendor: Samsung Electronics Co Ltd
physical id: 0
bus info: pci@0000:04:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: storage pm msi pciexpress msix nvm_express bus_master cap_list
configuration: driver=nvme latency=0
resources: irq:16 memory:de400000-de403fff ioport:c000(size=256)
如果确实需要修复，有人知道如何修复它吗？