#!/bin/sh
# DF-2902 run: two legs. Run as root in the guest; each leg is expected to
# KILL the stock kernel (see README); run leg 2 only after a reset.
set -e
dd if=/dev/zero of=/root/med.img bs=1m count=256
vnconfig -c -S 512 vn0 /root/med.img

echo '=== LEG A: blksize=0x40000 (256KB > MAXPHYS) -> expect KKASSERT panic at subr_diskmbr.c:128'
kenv mbrprobe.blksize=262144
kldload /root/mbrprobe/a/mbrprobe_a.ko
dmesg | tail -5

echo '=== (reset guest, recreate vn0, then) LEG B: blksize=0x80000000 -> expect assertion BYPASS + OOB memmove page fault'
kenv mbrprobe.blksize=2147483648
kldload /root/mbrprobe/b/mbrprobe_b.ko
dmesg | tail -5