I have the mainline linux-aarch64 kernel installed on my Samsung Chromebook Plus and a recent update to 5.8 seems to have broken things. When pacman tries to write the kernel image to the kernel partition, dd throws an error "No space left on device" and doesn't boot. The problem seems simple, the generalized kernel image used for most devices, linux-aarch64, has outgrown this paprticular pot and needs a bigger one (or needs to be pruned down). I can always build my own (and probably should anyway), but I figured I'd make the issue known.
Thanks guys.