I installed Arch on my new Dell 9300 following this guide: https://github.com/Spissable/arch-linux-installation/blob/master/README.md
Everything works fine, I can boot into my system. But there are two warnings when booting that popup before the normal systemd-boot output:
pci 0000:00:07.0: DPC: RP PIO log size 0 is invalid
pci 0000:00:07.2: DPC: RP PIO log size 0 is invalid
The only thing I could find to this was: https://www.spinics.net/lists/kernel/msg3763759.html I did a BIOS check and all hardware components are fine.
Any ideas to why this could happen?