AMD x86_64 with a Tyan 2885 motherboard and any rawhide 300 series kernel Original kernel boots and works really rather well 300 series kernel crashes shortly after boot if the onboard firewire happens to be enabled in the BIOS. Arjan says its impossible because firewire is disabled in the kernel but its definitely happening on the test box.
Fun indeed.
Problem not present in newer kernels. May have been side effect of aacraid bug ?