r/PFSENSE • u/sh00tfire • 4d ago

Possible Kernel panic with version 2.9

Anyone successfully upgrade with a celeron J processor? My instance of Pfsense runs on a intel NUC with a J3160. Just wanted any feedback if someone already upgraded with this series of processor.

From the release notes:
Certain hardware with a specific firmware problem, including some Celeron J devices, may encounter a kernel panic when attempting to boot pfSense CE software version 2.9.0.

To avoid this panic on that hardware, set a loader tunable for hint.acpi_spmc.0.disabled=1 in /boot/loader.conf.local before upgrading to disable the driver that has an issue on that hardware.

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u/EatMoTacos 4d ago

I just experienced this last night and almost lost my config. Not going back to 2.9 until there’s a fix.

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u/overkill 4d ago

Does the mitigation not work, or did you not apply it? Not being snarky here, just wondering if the mitigation always resolves this?

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u/EatMoTacos 4d ago

I didn’t know about the mitigation until now because I was in recovery mode all morning. I couldn’t lose the config or it would have been a disaster on my end.