sep 19 13:53:42 systemd[1]: Starting Hibernate...
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sep 19 13:53:42 systemd[1900]: systemd-hibernate.service: Executing: /usr/lib/systemd/systemd-sleep hibernate
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sep 19 13:53:42 systemd-sleep[1900]: Hibernating using device id and offset read from /sys/power/resume: 254:0 and /sys/power/resume_offset: 20531525
sep 19 13:53:42 systemd-sleep[1900]: Successfully forked off '(sd-executor)' as PID 1901.
sep 19 13:53:42 systemd-sleep[1900]: (sd-executor) succeeded.
sep 19 13:53:42 systemd-sleep[1900]: Suspending system...
sep 19 13:53:42 kernel: PM: hibernation entry

sep 19 13:53:49 kernel: PM: Marking nosave pages: [mem 0x00000000-0x00000fff]
sep 19 13:53:49 kernel: PM: Marking nosave pages: [mem 0x00058000-0x00058fff]
sep 19 13:53:49 kernel: PM: Marking nosave pages: [mem 0x0009d000-0x000fffff]
sep 19 13:53:49 kernel: PM: Marking nosave pages: [mem 0x7ef49000-0x7ef49fff]
sep 19 13:53:49 kernel: PM: Marking nosave pages: [mem 0x7ef56000-0x7ef57fff]
sep 19 13:53:49 kernel: PM: Marking nosave pages: [mem 0x7ef67000-0x7ef67fff]
sep 19 13:53:49 kernel: PM: Marking nosave pages: [mem 0x8ab7f000-0x8bffefff]
sep 19 13:53:49 kernel: PM: Marking nosave pages: [mem 0x8c000000-0xffffffff]
sep 19 13:53:49 kernel: PM: Basic memory bitmaps created
sep 19 13:53:49 kernel: PM: Preallocating image memory... done (allocated 604264 pages)
sep 19 13:53:49 kernel: PM: Allocated 2417056 kbytes in 0.31 seconds (7796.95 MB/s)
sep 19 13:53:49 kernel: Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
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sep 19 13:53:49 kernel: ACPI: Preparing to enter system sleep state S4
sep 19 13:53:49 kernel: ACPI: EC: event blocked
sep 19 13:53:49 kernel: ACPI: EC: EC stopped
sep 19 13:53:49 kernel: PM: Saving platform NVS memory
sep 19 13:53:49 kernel: Disabling non-boot CPUs ...
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sep 19 13:53:49 kernel: PM: Creating hibernation image:
sep 19 13:53:49 kernel: PM: Need to copy 600156 pages
sep 19 13:53:49 kernel: PM: Normal pages needed: 600156 + 1024, available pages: 3443092
sep 19 13:53:49 kernel: PM: Hibernation image created (600156 pages copied)
sep 19 13:53:49 kernel: PM: Restoring platform NVS memory
sep 19 13:53:49 kernel: ACPI: EC: EC started
sep 19 13:53:49 kernel: Enabling non-boot CPUs ...
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sep 19 13:53:49 kernel: ACPI: Waking up from system sleep state S4
sep 19 13:53:49 kernel: ACPI: EC: interrupt unblocked
sep 19 13:53:49 kernel: ACPI: EC: event unblocked
...
sep 19 13:53:49 kernel: PM: Cannot find swap device, try swapon -a
sep 19 13:53:49 kernel: PM: Cannot get swap writer
sep 19 13:53:49 kernel: PM: Basic memory bitmaps freed
sep 19 13:53:49 kernel: OOM killer enabled.
sep 19 13:53:49 kernel: Restarting tasks ... 
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sep 19 13:53:49 kernel: done.
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sep 19 13:53:49 systemd-sleep[1900]: Failed to write 'disk' to /sys/power/state: No such device
sep 19 13:53:49 systemd-sleep[1900]: Failed to suspend system. System resumed again: No such device
sep 19 13:53:49 systemd-sleep[1900]: Successfully forked off '(sd-executor)' as PID 1989.
sep 19 13:53:49 systemd-sleep[1900]: (sd-executor) succeeded.
sep 19 13:53:49 kernel: PM: hibernation exit
sep 19 13:53:49 systemd[1]: systemd-journald.service: Received EPOLLHUP on stored fd 69 (stored), closing.
sep 19 13:53:49 systemd[1]: Received SIGCHLD from PID 1900 (systemd-sleep).
sep 19 13:53:49 systemd[1]: Child 1900 (systemd-sleep) died (code=exited, status=1/FAILURE)
sep 19 13:53:49 systemd[1]: systemd-hibernate.service: Failed to read oom_kill field of memory.events cgroup attribute: No such file or directory
sep 19 13:53:49 systemd[1]: systemd-hibernate.service: Child 1900 belongs to systemd-hibernate.service.
sep 19 13:53:49 systemd[1]: systemd-hibernate.service: Main process exited, code=exited, status=1/FAILURE
sep 19 13:53:49 systemd[1]: systemd-hibernate.service: Failed with result 'exit-code'.
sep 19 13:53:49 systemd[1]: systemd-hibernate.service: Changed start -> failed
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sep 19 13:53:49 systemd[1]: Failed to start Hibernate.
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sep 19 13:53:49 systemd[1]: hibernate.target: Job 1435 hibernate.target/start finished, result=dependency
sep 19 13:53:49 systemd[1]: Dependency failed for Hibernate.
..
sep 19 13:53:49 systemd[1]: hibernate.target: Job hibernate.target/start failed with result 'dependency'.
sep 19 13:53:49 systemd[1]: systemd-hibernate.service: Unit entered failed state.