#!/bin/sh
# DF-4116 — trigger: fresh sound.ko load with NO /dev/sndstat open,
# then immediate unload.  Root required (kldload/kldunload).
# Expected on stock kernel: PANIC "sbuf_delete called with uninitialized
# or corrupt sbuf" in sndstat_sysuninit (guest dies in ddb; ssh session
# is killed mid-command).
kldload sound || exit 1
echo "sound.ko loaded; sndstat state: $(ls -l /dev/sndstat 2>&1)"
kldunload sound
echo "UNLOADED-CLEAN (no panic) rc=$?"