On Tue, Jan 15, 2008 at 09:10:14AM +0100, Jarle Greipsland wrote: > I just tried to boot a current kernel on my trusty, old > 486DX-based machine. It panicked very early in the boot sequence > with a "supervisor trap privileged instruction fault". To me it > seems that the kernel tried to use a not implemented instruction > on this CPU. Correct. It should work with sys/arch/i386/i386/identcpu.c revision 1.86. Andrew