DF-0715: issuing SMBIOC_OPENSESSION with ioc_svlen=0
  expected: kernel panic (fatal trap: read of sa->sa_len at (void*)-8 == 0xFFFFFFFFFFFFFFF8, non-canonical x86-64 GPF)
SMBIOC_OPENSESSION: Cannot allocate memory
DF-0715: ioctl returned -1 (errno=12)
RUN_EXIT=0