=== BUILD OK ===
user psize            = 0
after roundup2(_, 4)  = 0   (0 stays 0 -> the bug seed)
esize passed to fwdma_malloc_multiseg = 0

SIGFPE: integer divide by zero -- primitive reproduced.
In kernel context this is a #DE trap -> panic (sys/platform/pc64/x86_64/trap.c:1101).
RUN_EXIT=0