powerpc 4xx use mmu context(called TID(0~255)) when translate virtual addr to physical addr. a SPR named PID hold this context, so i think once i enable the addr translate, i have to set PID to current->mm->context to make translating work correctly. and it should be set to 0 when interrupt or system call arise. but after studying the kernel source i downloaded from tivo for a long time, i don't find any code to do that job. i think it mostly should be in these place: transfer_to_handler and int_return but it not. is the kernel missing something?
i am sorry if i post this message twice, my netscape got some problem. Wang ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
