Random kernel panics on Ubuntu Server 22.04.2 LTS

Kryptolyser

4/15/24, 2:45 PM

Last year I built a custom Ubuntu Server which hosts multiple Docker containers and an 8TB RAID setup with ZFS. However, since March, I have been experiencing totally random kernel panics at least once a day. I have tried various troubleshooting steps, including reinstalling the OS, disabling certain containers, using the kernel before the update, running MemTest successfully, and checking the hardware, but none of them have worked so far. I have also taken pictures of the kernel panics, but I am not sure how to interpret them. The message is always the same: end kernel panic - not syncing: Fatal exception in interrupt. I am currently suspecting that there might be an issue with the CPU, but I am open to other suggestions. Can anyone offer some insight into what might be causing these kernel panics? Thank you for your help!

OS:

Ubuntu 22.04.2 LTS (GNU/Linux 5.15.0-60-generic x86_64)

Hardware:

ASRock B550M Steel Legend AMD B550 So.AM4 Dual Channel DDR mATX Retail
AMD Ryzen 5 4600G 6x 3.70GHz So.AM4 BOX
300 Watt be quiet! SFX Power 3
16GB (1x 16GB) G.Skill Aegis DDR4-2666 DIMM CL19-19-19-43 Single
2x 8TB Seagate Barracuda Compute ST8000DM004

217

1 + 5

kernel

crash

22.04

Marco

4/15/24, 3:01 PM

The RAM is not on the supported memory list of the board with this cpu. Maybe a memtest shows something?

user535733

4/15/24, 3:04 PM

Run the LiveUSB installer's "Try Ubuntu" environment for a day or two. If you still get random kernel panics, then it's hardware-caused. If the panics go away, then it's software-caused.

Terrance

4/15/24, 3:17 PM

I think your suspicion of the CPU may be correct. Every panic is on the same CPU core of 3. Things you might want to check is heatsink compound and replace it with adequate coverage on the top of the CPU. Pull the CPU out and examine for damage to the pins or if compound got onto any pins, that could cause the pin not to connect properly to the socket. Also, I would check the power supply. They do make power supply testers that you can plug in to check for bad power rails. And, one other thought is check the capacitors on the motherboard for any caps that look like they might burst.

Kryptolyser

4/15/24, 6:52 PM

Alright guys, thanks for the advice! I'll try a few things and report back.

Hannu

4/16/24, 9:15 AM

Verify whether the 300W PSU is enough for two 8TB disks and the remainder of the system; you might need one with more Wattage - at least during startup.

Score:0

Ubuntu

Kryptolyser

4/29/24, 12:26 PM

After reordering the same CPU, I have yet to experience any kernel panics, indicating that the issue was likely with the CPU. Thank you all for the ideas and support!

+ 0

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