(kgdb) p *(struct unpcb *)$rbx
$12 = {unp_link = {le_next = 0xfffff8021d32c0f0, le_prev = 0xfffff8021e1912d0}, unp_socket = 0xfffff801e7420000, unp_file = 0x0, unp_vnode = 0x0, unp_ino = 0, unp_conn = 0x0, unp_refs = {lh_first = 0x0}, unp_reflink = {
    le_next = 0x0, le_prev = 0x0}, unp_addr = 0x0, reserved1 = 0, reserved2 = 0, unp_gencnt = 71846, unp_flags = 0, unp_gcflag = 0, unp_peercred = {cr_version = 0, cr_uid = 0, cr_ngroups = 0, cr_groups = {0 <repeats 16 times>}, 
    _cr_unused1 = 0x0}, unp_refcount = 1, unp_msgcount = 0, unp_mtx = {lock_object = {lo_name = 0xffffffff8099f167 "unp_mtx", lo_flags = 21692416, lo_data = 0, lo_witness = 0x0}, mtx_lock = 4}}

(kgdb) p/x *(struct socket *)0xfffff801e7420000
$2 = {so_count = 0x0, so_type = 0x1, so_options = 0x0, so_linger = 0x0, so_state = 0x2101, so_qstate = 0x0, so_pcb = 0xfffff800358713c0, so_vnet = 0x0, so_proto = 0xffffffff80c53620, so_head = 0x0, so_incomp = {tqh_first = 0x0, 
    tqh_last = 0xfffff801e7420030}, so_comp = {tqh_first = 0x0, tqh_last = 0xfffff801e7420040}, so_list = {tqe_next = 0x0, tqe_prev = 0x0}, so_qlen = 0x0, so_incqlen = 0x0, so_qlimit = 0x0, so_timeo = 0x0, so_error = 0x0, 
  so_sigio = 0x0, so_oobmark = 0x0, so_aiojobq = {tqh_first = 0x0, tqh_last = 0xfffff801e7420080}, so_rcv = {sb_sel = {si_tdlist = {tqh_first = 0x0, tqh_last = 0x0}, si_note = {kl_list = {slh_first = 0x0}, 
        kl_lock = 0xffffffff805f9c20, kl_unlock = 0xffffffff805f9c80, kl_assert_locked = 0xffffffff805f9cf0, kl_assert_unlocked = 0xffffffff805f9d00, kl_lockarg = 0xfffff801e74200d8}, si_mtx = 0x0}, sb_mtx = {lock_object = {
        lo_name = 0xffffffff8099e13b, lo_flags = 0x1030000, lo_data = 0x0, lo_witness = 0x0}, mtx_lock = 0xfffff80012365980}, sb_sx = {lock_object = {lo_name = 0xffffffff8099eb7e, lo_flags = 0x2330000, lo_data = 0x0, 
        lo_witness = 0x0}, sx_lock = 0x1}, sb_state = 0x20, sb_mb = 0xfffff8006d327400, sb_mbtail = 0xfffff8012f2c9700, sb_lastrecord = 0xfffff8012f2c9200, sb_sndptr = 0x0, sb_sndptroff = 0x0, sb_cc = 0x3a, sb_hiwat = 0x2000, 
    sb_mbcnt = 0x400, sb_mcnt = 0x4, sb_ccnt = 0x0, sb_mbmax = 0x10000, sb_ctl = 0x38, sb_lowat = 0x1, sb_timeo = 0x0, sb_flags = 0x0, sb_upcall = 0x0, sb_upcallarg = 0x0}, so_snd = {sb_sel = {si_tdlist = {tqh_first = 0x0, 
        tqh_last = 0x0}, si_note = {kl_list = {slh_first = 0x0}, kl_lock = 0xffffffff805f9c20, kl_unlock = 0xffffffff805f9c80, kl_assert_locked = 0xffffffff805f9cf0, kl_assert_unlocked = 0xffffffff805f9d00, 
        kl_lockarg = 0xfffff801e74201d0}, si_mtx = 0x0}, sb_mtx = {lock_object = {lo_name = 0xffffffff8099e142, lo_flags = 0x1030000, lo_data = 0x0, lo_witness = 0x0}, mtx_lock = 0x4}, sb_sx = {lock_object = {
        lo_name = 0xffffffff8099eb74, lo_flags = 0x2330000, lo_data = 0x0, lo_witness = 0x0}, sx_lock = 0x1}, sb_state = 0x10, sb_mb = 0x0, sb_mbtail = 0x0, sb_lastrecord = 0x0, sb_sndptr = 0x0, sb_sndptroff = 0x0, sb_cc = 0x0, 
    sb_hiwat = 0x2000, sb_mbcnt = 0x0, sb_mcnt = 0x0, sb_ccnt = 0x0, sb_mbmax = 0x10000, sb_ctl = 0x0, sb_lowat = 0x800, sb_timeo = 0x0, sb_flags = 0x0, sb_upcall = 0x0, sb_upcallarg = 0x0}, so_cred = 0xfffff8016b03a600, 
  so_label = 0x0, so_peerlabel = 0x0, so_gencnt = 0xa76dc, so_emuldata = 0x0, so_accf = 0x0, osd = {osd_nslots = 0x0, osd_slots = 0x0, osd_next = {le_next = 0x0, le_prev = 0x0}}, so_fibnum = 0x0, so_user_cookie = 0x0}

(kgdb) p *(struct socket *)0xfffff801e7420000
$3 = {so_count = 0, so_type = 1, so_options = 0, so_linger = 0, so_state = 8449, so_qstate = 0, so_pcb = 0xfffff800358713c0, so_vnet = 0x0, so_proto = 0xffffffff80c53620, so_head = 0x0, so_incomp = {tqh_first = 0x0, 
    tqh_last = 0xfffff801e7420030}, so_comp = {tqh_first = 0x0, tqh_last = 0xfffff801e7420040}, so_list = {tqe_next = 0x0, tqe_prev = 0x0}, so_qlen = 0, so_incqlen = 0, so_qlimit = 0, so_timeo = 0, so_error = 0, so_sigio = 0x0, 
  so_oobmark = 0, so_aiojobq = {tqh_first = 0x0, tqh_last = 0xfffff801e7420080}, so_rcv = {sb_sel = {si_tdlist = {tqh_first = 0x0, tqh_last = 0x0}, si_note = {kl_list = {slh_first = 0x0}, 
        kl_lock = 0xffffffff805f9c20 <knlist_mtx_lock>, kl_unlock = 0xffffffff805f9c80 <knlist_mtx_unlock>, kl_assert_locked = 0xffffffff805f9cf0 <knlist_mtx_assert_locked>, 
        kl_assert_unlocked = 0xffffffff805f9d00 <knlist_mtx_assert_unlocked>, kl_lockarg = 0xfffff801e74200d8}, si_mtx = 0x0}, sb_mtx = {lock_object = {lo_name = 0xffffffff8099e13b "so_rcv", lo_flags = 16973824, lo_data = 0, 
        lo_witness = 0x0}, mtx_lock = 18446735277922081152}, sb_sx = {lock_object = {lo_name = 0xffffffff8099eb7e "so_rcv_sx", lo_flags = 36896768, lo_data = 0, lo_witness = 0x0}, sx_lock = 1}, sb_state = 32, 
    sb_mb = 0xfffff8006d327400, sb_mbtail = 0xfffff8012f2c9700, sb_lastrecord = 0xfffff8012f2c9200, sb_sndptr = 0x0, sb_sndptroff = 0, sb_cc = 58, sb_hiwat = 8192, sb_mbcnt = 1024, sb_mcnt = 4, sb_ccnt = 0, sb_mbmax = 65536, 
    sb_ctl = 56, sb_lowat = 1, sb_timeo = 0, sb_flags = 0, sb_upcall = 0, sb_upcallarg = 0x0}, so_snd = {sb_sel = {si_tdlist = {tqh_first = 0x0, tqh_last = 0x0}, si_note = {kl_list = {slh_first = 0x0}, 
        kl_lock = 0xffffffff805f9c20 <knlist_mtx_lock>, kl_unlock = 0xffffffff805f9c80 <knlist_mtx_unlock>, kl_assert_locked = 0xffffffff805f9cf0 <knlist_mtx_assert_locked>, 
        kl_assert_unlocked = 0xffffffff805f9d00 <knlist_mtx_assert_unlocked>, kl_lockarg = 0xfffff801e74201d0}, si_mtx = 0x0}, sb_mtx = {lock_object = {lo_name = 0xffffffff8099e142 "so_snd", lo_flags = 16973824, lo_data = 0, 
        lo_witness = 0x0}, mtx_lock = 4}, sb_sx = {lock_object = {lo_name = 0xffffffff8099eb74 "so_snd_sx", lo_flags = 36896768, lo_data = 0, lo_witness = 0x0}, sx_lock = 1}, sb_state = 16, sb_mb = 0x0, sb_mbtail = 0x0, 
    sb_lastrecord = 0x0, sb_sndptr = 0x0, sb_sndptroff = 0, sb_cc = 0, sb_hiwat = 8192, sb_mbcnt = 0, sb_mcnt = 0, sb_ccnt = 0, sb_mbmax = 65536, sb_ctl = 0, sb_lowat = 2048, sb_timeo = 0, sb_flags = 0, sb_upcall = 0, 
    sb_upcallarg = 0x0}, so_cred = 0xfffff8016b03a600, so_label = 0x0, so_peerlabel = 0x0, so_gencnt = 685788, so_emuldata = 0x0, so_accf = 0x0, osd = {osd_nslots = 0, osd_slots = 0x0, osd_next = {le_next = 0x0, le_prev = 0x0}}, 
  so_fibnum = 0, so_user_cookie = 0}