Invalid memory access at

[Alaor Barroso]

Hello people, I'm trying to boot freeBSD in a PowerMac G4, but after I
holding "c", I got the OpenFirmware screen saying that occurred a
invalid memory acces at "R$0..something...."... I have no idea of what
I can do. In some Linux Foruns I've seen that some Kernels of Linux
can cause this message, and chanching the booting kernel the problem
is solved. But in freeBSD?  Help me plz guyz...

[]'s