#!/bin/sh
# DF-2681 run: kldload the module; attach installs
# bus_generic_delete_resource as the bus method and immediately calls
# bus_delete_resource() on its child.
# Expected (vulnerable kernel): kldload never returns; the console shows
#   "dfrec0 on motherboard"
#   "dfrec: attached, calling bus_delete_resource() on child"
# and then the kernel livelocks (module lock held forever by the
# self-dispatching thread; kldstat/ps hang; system must be power-cycled).
# A non-tail-call build instead overflows the kernel stack (panic).
kldload /tmp/df2681/dfrec.ko
echo "returned (bug fixed)"