# fix kernel #2 (build with net_init_domain_fill pre-publication):
# domain registered via the REAL net_add_domain with NULL optional hooks:
DF2966: domain AF=99 registered via net_add_domain with pru_attach valid and NULL optional hooks (window state).
# unpriv userland (unbuffered variant):
socket=3
listen -> -1 errno=0
shutdown -> -1 errno=0
# NO PANIC; guest stayed up (stock kernel panicked here: panic: netmsg_service isr N badmsg)