ci# fsck sd2a
vm_fault(189000, 74000000, 1, 0) -> 1
  type 8, code [mmu,,ssw]: 401074d
trap: type 0x8, code 0x401074d, v 0x74000004
kernel: MMU fault trap
pid = 231, pc = 000F79BC, ps = 2200, sfc = 1, dfc = 1
Registers:

....