scause            141 kernel/trap.c    uint64 scause = r_scause();
scause            150 kernel/trap.c      printf("scause=0x%lx sepc=0x%lx stval=0x%lx\n", scause, r_sepc(), r_stval());
scause            188 kernel/trap.c    uint64 scause = r_scause();
scause            190 kernel/trap.c    if(scause == 0x8000000000000009L){
scause            211 kernel/trap.c    } else if(scause == 0x8000000000000005L){