Kernel Panic - not syncing: fatal exception in interrupt

[matty_r]

G'day all,

I'm having some issues with my install of 5.3-5 - it's not the first time it's occurred however i've had the system crash a couple of times now with Kernel Panic - not syncing: fatal exception in interrupt. I've attached a photo of the error.

If someone could assist me in troubleshooting this issue, that would be greatly appreciated. Thank you.

Hardware as below:
CPU: AMD Ryzen 7 2700
MOBO: Gigabyte X470 Aorus Ultra Gaming Socket AM4
RAM: 1x Corsair 16GB (2 x8) CMK16GX4M2B3000C15B DDR4 3000Mhz
SSD: 2x Silicon Power 1TB A56 SATA3 2.5"
HDD: Seagate Barracuda 8TB ST8000DM004
GPU: MSI GT 710 2G DDR3 Low Profile
PSU: Corsair 550W RM550x (2018) Gold Power Supply

 

[matty_r]

I'm in the process of installing the amd-microcode package - hopefully that might solve some issues.

Edit: Looks like i'm already running the latest microcode.

[ 0.675916] microcode: CPU0: patch_level=0x0800820b
[ 0.675925] microcode: CPU1: patch_level=0x0800820b
[ 0.675938] microcode: CPU2: patch_level=0x0800820b
[ 0.675948] microcode: CPU3: patch_level=0x0800820b
[ 0.675958] microcode: CPU4: patch_level=0x0800820b
[ 0.675963] microcode: CPU5: patch_level=0x0800820b
[ 0.675969] microcode: CPU6: patch_level=0x0800820b
[ 0.675979] microcode: CPU7: patch_level=0x0800820b
[ 0.675992] microcode: CPU8: patch_level=0x0800820b
[ 0.676004] microcode: CPU9: patch_level=0x0800820b
[ 0.676031] microcode: CPU10: patch_level=0x0800820b
[ 0.676045] microcode: CPU11: patch_level=0x0800820b
[ 0.676059] microcode: CPU12: patch_level=0x0800820b
[ 0.676071] microcode: CPU13: patch_level=0x0800820b
[ 0.676084] microcode: CPU14: patch_level=0x0800820b
[ 0.676097] microcode: CPU15: patch_level=0x0800820b
[ 0.676125] microcode: Microcode Update Driver: v2.2.

 

[matty_r]

Had another crash today - anybody able to assist? Why is this occurring?

 

[udo]

Hi,
do you use zfs? Have you limit zfs_arc_max? How much mem is free? Is swap enabled?

BTW. there is an newer bios out (but I would not asume, that this fix the issue).

Udo

 

[matty_r]

G'day Udo,

Yes, i'm using ZFS - I have not adjusted zfs_arc_max. At the moment, there is about 2GB free, swap is not enabled. I've already updated to the latest BIOS, the issue still occured.

Regards