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Linux server hangs on shutdown (lemmy.fish)

submitted 4 weeks ago by potentiallynotfelix@lemmy.fish to c/linux@lemmy.ml

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I've had two server oses here: alma linux and debian(currently). On both of them, they will hang when I shut them down from cockpit, and they hang at the end of the shutdown.

Also, it takes an hour to a day to have this issue start. if it's restarted two times in a row quickly, it works perfectly fine for some reason.

What I've tried:

setting "acpi=off" and "acpi=force" kernel parameters in grub
removing my nvidia gpu(i was using nouveau drivers)
changing distros

nothing worked. here are some things that both distros had in common with eachother:

systemd
cockpit
libvirt & qemu
docker

does anyone have advice? nothing i've seen online has worked. thank you for suggestions

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[–] CameronDev@programming.dev 3 points 4 weeks ago (30 children)

Is it actual server hardware? I've seen some very weird things with real servers that take ages to reboot (I was assuming it was self checking or something). Are you sure its hung, and not just very slow to shutdown/reboot?

Is there any serial/monitor output before the hang?

[–] potentiallynotfelix@lemmy.fish 9 points 4 weeks ago (28 children)

Monitor output after shutting down:

I've given it 6 hours or so to shut down, so it's almost 100% a hang not a slow shutdown

[–] BCsven@lemmy.ca 1 points 4 weeks ago (1 children)

Says reboot, are you issuing a reboot or a shutdown poweroff? Entering sleep state 5 shout be power off right?

[–] potentiallynotfelix@lemmy.fish 1 points 4 weeks ago (1 children)

I click the reboot button on cockpit, which issues a shutdown --reboot command as root. I agree that sleep state S5 is powered off. From the acpi docs:

A computer state where the computer consumes a minimal amount of power. No user mode or system mode code is run. This state requires a large latency in order to return to the Working state. The system’s context will not be preserved by the hardware. The system must be restarted to return to the Working state. It is not safe to disassemble the machine in this state.

This likely means my system is failing to reach that s5/g2 state.

[–] BCsven@lemmy.ca 3 points 4 weeks ago (1 children)

If you ssh login directly and issue same command, not In cockpit interface, does it react the same?

[–] potentiallynotfelix@lemmy.fish 2 points 3 weeks ago

hi, a bios revert fixed this issue. thank you for helping!

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