On 7/4/25 3:30 PM, Ranjan Maitra via users wrote:
On Fri Jul04'25 03:06:01PM, Samuel Sieb wrote:
The first hibernate works, but then it won't hibernate again? Check the
journal, it will tell you why. "journalctl -r" might help. It gives you
the log in reverse order, starting with the most recent lines.
Indeed, crazy as it may sounds, here is the latest one:
https://paste.centos.org/view/8d4d1dc9
In this case, it blinked and came back up.
It's very strange. It gets woken up while part way through the shutdown.
In correct order:
Jul 04 17:19:05 localhost.localdomain kernel: ACPI: EC: EC stopped
Jul 04 17:19:05 localhost.localdomain kernel: ACPI: PM: Saving platform
NVS memory
Jul 04 17:19:05 localhost.localdomain kernel: Disabling non-boot CPUs ...
Jul 04 17:19:05 localhost.localdomain kernel: smpboot: CPU 7 is now offline
Jul 04 17:19:05 localhost.localdomain kernel: smpboot: CPU 6 is now offline
Jul 04 17:19:05 localhost.localdomain kernel: smpboot: CPU 5 is now offline
Jul 04 17:19:05 localhost.localdomain kernel: smpboot: CPU 4 is now offline
Jul 04 17:19:05 localhost.localdomain kernel: smpboot: CPU 3 is now offline
Jul 04 17:19:05 localhost.localdomain kernel: smpboot: CPU 2 is now offline
Jul 04 17:19:05 localhost.localdomain kernel: smpboot: CPU 1 is now offline
Jul 04 17:19:05 localhost.localdomain kernel: PM: hibernation: Creating
image:
Jul 04 17:19:05 localhost.localdomain kernel: PM: hibernation: Need to
copy 1234035 pages
Jul 04 17:19:05 localhost.localdomain kernel: PM: hibernation: Normal
pages needed: 1234035 + 1024, available pages: 2889258
Jul 04 17:19:05 localhost.localdomain kernel: PM: hibernation: Image
created (1099428 pages copied, 134607 zero pages)
Jul 04 17:19:05 localhost.localdomain kernel: ACPI: PM: Restoring
platform NVS memory
Jul 04 17:19:05 localhost.localdomain kernel: ACPI: EC: EC started
Jul 04 17:19:05 localhost.localdomain kernel: Enabling non-boot CPUs ...
The last 3 lines are startup.
After it writes the hibernation image to flash, you get this:
Jul 04 17:19:05 localhost.localdomain kernel: PM: hibernation: Wakeup
event detected during hibernation, rolling back.
I don't see any indication of what exactly the wakeup event is, but it
seems like something low-level.
--
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