I have set up a nightly hibernation routine (see below) but it
sometimes works and sometimes doesn't. It appears to be completely
random.
When I invoke it manually, via 'systemctl hibernate' it invariably
works.
$ systemctl status hibernate-preparation hibernate-resume
○ hibernate-preparation.service - Enable swap file and disable zram before hibernate
Loaded: loaded (/etc/systemd/system/hibernate-preparation.service; enabled; preset: disabled)
Drop-In: /usr/lib/systemd/system/service.d
└─10-timeout-abort.conf
Active: inactive (dead)
○ hibernate-resume.service - Disable swap after resuming from hibernation
Loaded: loaded (/etc/systemd/system/hibernate-resume.service; enabled; preset: disabled)
Drop-In: /usr/lib/systemd/system/service.d
└─10-timeout-abort.conf
Active: inactive (dead)
$ cat hibernate-preparation.service
[Unit]
Description=Enable swap file and disable zram before hibernate
Before=systemd-hibernate.service
[Service]
User=root
Type=oneshot
ExecStart=/bin/bash -c /usr/sbin/swapon /SWAP/swapfile && /usr/sbin/swapoff /dev/zram0
[Install]
WantedBy=systemd-hibernate.service
$ cat hibernate-resume.service
[Unit]
Description=Disable swap after resuming from hibernation
After=hibernate.target
[Service]
User=root
Type=oneshot
ExecStart=/usr/sbin/swapoff /SWAP/swapfile
[Install]
WantedBy=hibernate.target
When it fails, I get this in the journal:
Aug 13 01:05:25 Bree systemd[1]: Reached target sleep.target - Sleep.
Aug 13 01:05:25 Bree systemd[1]: Starting hibernate-preparation.service - Enable swap file and disable zram before hibernate...
Aug 13 01:05:25 Bree bash[118343]: NAME TYPE SIZE USED PRIO
Aug 13 01:05:25 Bree bash[118343]: /dev/zram0 partition 8G 1.6G 100
Aug 13 01:05:25 Bree systemd[1]: hibernate-preparation.service: Deactivated successfully.
Aug 13 01:05:25 Bree systemd[1]: Finished hibernate-preparation.service - Enable swap file and disable zram before hibernate.
Aug 13 01:05:25 Bree systemd[1]: Starting systemd-hibernate.service - Hibernate...
Aug 13 01:05:25 Bree systemd-sleep[118344]: Failed to find location to hibernate to: Function not implemented
Aug 13 01:05:25 Bree systemd[1]: systemd-hibernate.service: Main process exited, code=exited, status=1/FAILURE
Aug 13 01:05:25 Bree systemd[1]: systemd-hibernate.service: Failed with result 'exit-code'.
Aug 13 01:05:25 Bree systemd[1]: Failed to start systemd-hibernate.service - Hibernate.
Aug 13 01:05:25 Bree systemd[1]: Dependency failed for hibernate.target - System Hibernation.
Aug 13 01:05:25 Bree systemd[1]: hibernate.target: Job hibernate.target/start failed with result 'dependency'.
Aug 13 01:05:25 Bree systemd-logind[948]: Operation 'sleep' finished.
Aug 13 01:05:25 Bree systemd[1]: Stopped target sleep.target - Sleep.
Aug 13 01:05:25 Bree ModemManager[1029]: <info> [sleep-monitor-systemd] system is resuming
When it succeeds, I get this:
Aug 13 17:23:24 Bree systemd[1]: Reached target sleep.target - Sleep.
Aug 13 17:23:24 Bree systemd[1]: Starting hibernate-preparation.service - Enable swap file and disable zram before hibernate...
Aug 13 17:23:24 Bree bash[40863]: NAME TYPE SIZE USED PRIO
Aug 13 17:23:24 Bree bash[40863]: /SWAP/swapfile file 32G 0B -2
Aug 13 17:23:24 Bree bash[40863]: /dev/zram0 partition 8G 0B 100
Aug 13 17:23:24 Bree systemd[1]: hibernate-preparation.service: Deactivated successfully.
Aug 13 17:23:24 Bree systemd[1]: Finished hibernate-preparation.service - Enable swap file and disable zram before hibernate.
Aug 13 17:23:24 Bree systemd[1]: Starting systemd-hibernate.service - Hibernate...
Aug 13 17:23:24 Bree plasmashell[2504]: qt.qpa.clipboard: QXcbClipboard::setMimeData: Cannot set X11 selection owner
Aug 13 17:23:24 Bree systemd[1]: httpd.service: Sent signal SIGWINCH to main process 1116 (httpd) on client request.
Aug 13 17:23:24 Bree systemd-sleep[40865]: Entering sleep state 'hibernate'...
The difference is that in the failure case it's not seeing the swap
file, but that file always exists and has the correct permissions:
# ls -lhZ /SWAP/swapfile
-rw-------. 1 root root unconfined_u:object_r:swapfile_t:s0 32G Jul 12 12:46 /SWAP/swapfile
# df -h /SWAP
Filesystem Size Used Avail Use% Mounted on
- 1.9T 1.6T 246G 87% /SWAP
[root@Bree log]# file /SWAP
/SWAP: directory
(/SWAP is a BTRFS subvolume with COW turned off)
I'm at a loss. Any thoughts?
poc
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