Hi, after updating the BIOS, I'm now met with warning/error messages every boot, however it continues to boot normally. There has since been one crash related to PCIe errors, but I'm not sure if this was related to the BIOS update or "just" a driver bug. Downgrading the BIOS to the previous version is - as I found out - not officially supported. I'm not sure how bad these warnings/errors are and if I should be concerned about it and if this should be reported to the manufacturer or kernel devs. I'd appreciate if someone more knowledgeable with this could give me an opinion on it. Relevant dmesg excerpt: [ 0.364305] rcu: Hierarchical SRCU implementation. [ 0.364572] NMI watchdog: Enabled. Permanently consumes one hw-PMU counter. [ 0.364641] smp: Bringing up secondary CPUs ... [ 0.364641] x86: Booting SMP configuration: [ 0.364641] .... node #0, CPUs: #1 [ 0.068359] __common_interrupt: 1.55 No irq handler for vector [ 0.364641] #2 [ 0.068359] __common_interrupt: 2.55 No irq handler for vector [ 0.364705] #3 [ 0.068359] __common_interrupt: 3.55 No irq handler for vector [ 0.366814] #4 [ 0.068359] __common_interrupt: 4.55 No irq handler for vector [ 0.368708] #5 [ 0.068359] __common_interrupt: 5.55 No irq handler for vector [ 0.372703] #6 [ 0.068359] __common_interrupt: 6.55 No irq handler for vector [ 0.374847] #7 [ 0.068359] __common_interrupt: 7.55 No irq handler for vector [ 0.376706] #8 [ 0.068359] __common_interrupt: 8.55 No irq handler for vector [ 0.378863] #9 [ 0.068359] __common_interrupt: 9.55 No irq handler for vector [ 0.380706] #10 [ 0.068359] __common_interrupt: 10.55 No irq handler for vector [ 0.382816] #11 #12 #13 #14 #15 [ 0.394846] smp: Brought up 1 node, 16 CPUs [ 0.394846] smpboot: Max logical packages: 2 [ 0.394846] smpboot: Total of 16 processors activated (102210.65 BogoMIPS) [ 0.397401] devtmpfs: initialized Full dmesg logs from before and after the BIOS update are attached. Those irq errors happen with all tested kernel versions. ( Buster's 4.19.0-11-amd64, backport's 5.7.0-0.bpo.2-amd64 and local 5.8.12 and 5.8.14 kernels ) As for why I was updating the BIOS: With the previous BIOS version I wasn't able to run the RAM at the advertised speeds. Now I can, but I get these warnings/errors instead — regardless of memory speed. Nito
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