https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=245870
--- Comment #3 from Thomas von Dein <free...@daemon.de> ---
(In reply to Mark Johnston from comment #2)
Hello Mark,
> From frame 11 could you run:
>
> (kgdb) p *so
> (kgdb) p *so->so_listen
> (kgdb) p *so->so_listen->sol_accept_filter
Yes:
(kgdb) f 11
#11 0xffffffff80cf1ebc in soisconnected (so=0xfffff8108ede7368) at
/usr/src/sys/kern/uipc_socket.c:3775
3775 ret =
head->sol_accept_filter->accf_callback(so,
(kgdb) p *so
$1 = {so_lock = {lock_object = {lo_name = 0xffffffff81386dc0 "socket", lo_flags
= 21168128, lo_data = 0, lo_witness = 0x0}, mtx_lock = 18446735281986889184},
so_count = 0, so_rdsel = {si_tdlist = {tqh_first = 0x0,
tqh_last = 0x0}, si_note = {kl_list = {slh_first = 0x0}, kl_lock =
0xffffffff80ceb1c0 <so_rdknl_lock>, kl_unlock = 0xffffffff80ceb240
<so_rdknl_unlock>, kl_assert_locked = 0xffffffff80ceb2a0
<so_rdknl_assert_locked>,
kl_assert_unlocked = 0xffffffff80ceb2b0 <so_rdknl_assert_unlocked>,
kl_lockarg = 0xfffff8108ede7368, kl_autodestroy = 0}, si_mtx = 0x0}, so_wrsel =
{si_tdlist = {tqh_first = 0x0, tqh_last = 0x0}, si_note = {kl_list = {
slh_first = 0x0}, kl_lock = 0xffffffff80ceb2c0 <so_wrknl_lock>,
kl_unlock = 0xffffffff80ceb340 <so_wrknl_unlock>, kl_assert_locked =
0xffffffff80ceb3a0 <so_wrknl_assert_locked>,
kl_assert_unlocked = 0xffffffff80ceb3b0 <so_wrknl_assert_unlocked>,
kl_lockarg = 0xfffff8108ede7368, kl_autodestroy = 0}, si_mtx = 0x0}, so_type =
1, so_options = 4, so_linger = 0, so_state = 259,
so_pcb = 0xfffff801f21e7988, so_vnet = 0xfffff81080019b40, so_proto =
0xffffffff81b581b0 <inetsw+192>, so_timeo = 0, so_error = 0, so_sigio = 0x0,
so_cred = 0xfffff8012cd3ee00, so_label = 0x0, so_gencnt = 23888,
so_emuldata = 0x0, so_dtor = 0x0, osd = {osd_nslots = 0, osd_slots = 0x0,
osd_next = {le_next = 0x0, le_prev = 0x0}}, so_fibnum = 0, so_user_cookie = 0,
so_ts_clock = 0, so_max_pacing_rate = 0, {{so_rcv = {sb_mtx = {
lock_object = {lo_name = 0xffffffff813e98c0 "so_rcv", lo_flags =
16973824, lo_data = 0, lo_witness = 0x0}, mtx_lock = 18446735281986889184},
sb_sx = {lock_object = {lo_name = 0xffffffff81435c38 "so_rcv_sx",
lo_flags = 36896768, lo_data = 0, lo_witness = 0x0}, sx_lock = 1},
sb_sel = 0xfffff8108ede7390, sb_state = 0, sb_mb = 0x0, sb_mbtail = 0x0,
sb_lastrecord = 0x0, sb_sndptr = 0x0, sb_fnrdy = 0x0, sb_sndptroff = 0,
sb_acc = 0, sb_ccc = 0, sb_hiwat = 1049740, sb_mbcnt = 0, sb_mcnt = 0,
sb_ccnt = 0, sb_mbmax = 8397920, sb_ctl = 0, sb_lowat = 1, sb_timeo = 0,
sb_flags = 2080, sb_upcall = 0xffffffff826e3000, sb_upcallarg = 0x0,
sb_aiojobq = {tqh_first = 0x0, tqh_last = 0xfffff8108ede7580},
sb_aiotask = {ta_link = {stqe_next = 0x0}, ta_pending = 0, ta_priority = 0,
ta_func = 0xffffffff80cc7800 <soaio_rcv>, ta_context = 0xfffff8108ede7368}},
so_snd = {sb_mtx = {lock_object = {lo_name = 0xffffffff813fbdb7 "so_snd",
lo_flags = 16973824, lo_data = 0, lo_witness = 0x0}, mtx_lock = 0}, sb_sx =
{lock_object = {lo_name = 0xffffffff8145a998 "so_snd_sx",
lo_flags = 36896768, lo_data = 0, lo_witness = 0x0}, sx_lock = 1},
sb_sel = 0xfffff8108ede73e0, sb_state = 0, sb_mb = 0x0, sb_mbtail = 0x0,
sb_lastrecord = 0x0, sb_sndptr = 0x0, sb_fnrdy = 0x0, sb_sndptroff = 0,
sb_acc = 0, sb_ccc = 0, sb_hiwat = 1049740, sb_mbcnt = 0, sb_mcnt = 0,
sb_ccnt = 0, sb_mbmax = 8397920, sb_ctl = 0, sb_lowat = 2048, sb_timeo = 0,
sb_flags = 2048, sb_upcall = 0x0, sb_upcallarg = 0x0, sb_aiojobq = {
tqh_first = 0x0, tqh_last = 0xfffff8108ede7670}, sb_aiotask =
{ta_link = {stqe_next = 0x0}, ta_pending = 0, ta_priority = 0, ta_func =
0xffffffff80cc8080 <soaio_snd>, ta_context = 0xfffff8108ede7368}}, so_list = {
tqe_next = 0x0, tqe_prev = 0xfffff8011cb60828}, so_listen =
0xfffff8011cb606d0, so_qstate = SQ_INCOMP, so_peerlabel = 0x0, so_oobmark = 0},
{sol_incomp = {tqh_first = 0xffffffff813e98c0, tqh_last = 0x1030000},
sol_comp = {tqh_first = 0x0, tqh_last = 0xfffff801047e65e0}, sol_qlen =
2168675384, sol_incqlen = 4294967295, sol_qlimit = 36896768, sol_accept_filter
= 0x0, sol_accept_filter_arg = 0x1,
sol_accept_filter_str = 0xfffff8108ede7390 "", sol_upcall = 0x0,
sol_upcallarg = 0x0, sol_sbrcv_lowat = 0, sol_sbsnd_lowat = 0, sol_sbrcv_hiwat
= 0, sol_sbsnd_hiwat = 0, sol_sbrcv_flags = 0, sol_sbsnd_flags = 0,
sol_sbrcv_timeo = 0, sol_sbsnd_timeo = 0}}}
(kgdb) p *so->so_listen
$2 = {so_lock = {lock_object = {lo_name = 0xffffffff81386dc0 "socket", lo_flags
= 21168128, lo_data = 0, lo_witness = 0x0}, mtx_lock = 18446735281986889184},
so_count = 2, so_rdsel = {si_tdlist = {tqh_first = 0x0,
tqh_last = 0x0}, si_note = {kl_list = {slh_first = 0xfffff810a58bd780},
kl_lock = 0xffffffff80ceb1c0 <so_rdknl_lock>, kl_unlock = 0xffffffff80ceb240
<so_rdknl_unlock>,
kl_assert_locked = 0xffffffff80ceb2a0 <so_rdknl_assert_locked>,
kl_assert_unlocked = 0xffffffff80ceb2b0 <so_rdknl_assert_unlocked>, kl_lockarg
= 0xfffff8011cb606d0, kl_autodestroy = 0}, si_mtx = 0x0}, so_wrsel = {
si_tdlist = {tqh_first = 0x0, tqh_last = 0x0}, si_note = {kl_list =
{slh_first = 0x0}, kl_lock = 0xffffffff80ceb2c0 <so_wrknl_lock>, kl_unlock =
0xffffffff80ceb340 <so_wrknl_unlock>,
kl_assert_locked = 0xffffffff80ceb3a0 <so_wrknl_assert_locked>,
kl_assert_unlocked = 0xffffffff80ceb3b0 <so_wrknl_assert_unlocked>, kl_lockarg
= 0xfffff8011cb606d0, kl_autodestroy = 0}, si_mtx = 0x0}, so_type = 1,
so_options = 4102, so_linger = 0, so_state = 256, so_pcb =
0xfffff810c0ce07a0, so_vnet = 0xfffff81080019b40, so_proto = 0xffffffff81b581b0
<inetsw+192>, so_timeo = 0, so_error = 0, so_sigio = 0x0,
so_cred = 0xfffff8012cd3ee00, so_label = 0x0, so_gencnt = 23864, so_emuldata
= 0x0, so_dtor = 0x0, osd = {osd_nslots = 0, osd_slots = 0x0, osd_next =
{le_next = 0x0, le_prev = 0x0}}, so_fibnum = 0, so_user_cookie = 0,
so_ts_clock = 0, so_max_pacing_rate = 0, {{so_rcv = {sb_mtx = {lock_object =
{lo_name = 0xfffff8108ede7368 "\300m8\201\377\377\377\377", lo_flags =
2396944032, lo_data = 4294965264, lo_witness = 0x0},
mtx_lock = 18446735282393188408}, sb_sx = {lock_object = {lo_name =
0x100000000 <error: Cannot access memory at address 0x100000000>, lo_flags =
1024, lo_data = 0, lo_witness = 0xfffff80106739540}, sx_lock = 0},
sb_sel = 0x0, sb_state = 0, sb_mb = 0x0, sb_mbtail = 0x80000000001,
sb_lastrecord = 0x10000000100000, sb_sndptr = 0x8000800, sb_fnrdy = 0x0,
sb_sndptroff = 0, sb_acc = 0, sb_ccc = 0, sb_hiwat = 0, sb_mbcnt = 0,
sb_mcnt = 0, sb_ccnt = 0, sb_mbmax = 0, sb_ctl = 0, sb_lowat = 1,
sb_timeo = 0, sb_flags = 2048, sb_upcall = 0x0, sb_upcallarg = 0x0, sb_aiojobq
= {tqh_first = 0x0, tqh_last = 0xfffff8011cb608e8}, sb_aiotask = {
ta_link = {stqe_next = 0x0}, ta_pending = 0, ta_priority = 0, ta_func
= 0xffffffff80cc7800 <soaio_rcv>, ta_context = 0xfffff8011cb606d0}}, so_snd =
{sb_mtx = {lock_object = {lo_name = 0xffffffff813fbdb7 "so_snd",
lo_flags = 16908288, lo_data = 0, lo_witness = 0x0}, mtx_lock = 4},
sb_sx = {lock_object = {lo_name = 0xffffffff8145a998 "so_snd_sx", lo_flags =
36831232, lo_data = 0, lo_witness = 0x0}, sx_lock = 6},
sb_sel = 0xfffff8011cb60748, sb_state = 0, sb_mb = 0x0, sb_mbtail =
0x0, sb_lastrecord = 0x0, sb_sndptr = 0x0, sb_fnrdy = 0x0, sb_sndptroff = 0,
sb_acc = 0, sb_ccc = 0, sb_hiwat = 0, sb_mbcnt = 0, sb_mcnt = 0,
sb_ccnt = 0, sb_mbmax = 0, sb_ctl = 0, sb_lowat = 2048, sb_timeo = 0,
sb_flags = 2048, sb_upcall = 0x0, sb_upcallarg = 0x0, sb_aiojobq = {tqh_first =
0x0, tqh_last = 0xfffff8011cb609d8}, sb_aiotask = {ta_link = {
stqe_next = 0x0}, ta_pending = 0, ta_priority = 0, ta_func =
0xffffffff80cc8080 <soaio_snd>, ta_context = 0xfffff8011cb606d0}}, so_list =
{tqe_next = 0x0, tqe_prev = 0x0}, so_listen = 0x0, so_qstate = SQ_NONE,
so_peerlabel = 0x0, so_oobmark = 0}, {sol_incomp = {tqh_first =
0xfffff8108ede7368, tqh_last = 0xfffff8108ede76a0}, sol_comp = {tqh_first =
0x0, tqh_last = 0xfffff8011cb60838}, sol_qlen = 0, sol_incqlen = 1,
sol_qlimit = 1024, sol_accept_filter = 0xfffff80106739540,
sol_accept_filter_arg = 0x0, sol_accept_filter_str = 0x0, sol_upcall = 0x0,
sol_upcallarg = 0x0, sol_sbrcv_lowat = 1, sol_sbsnd_lowat = 2048,
sol_sbrcv_hiwat = 1048576, sol_sbsnd_hiwat = 1048576, sol_sbrcv_flags =
2048, sol_sbsnd_flags = 2048, sol_sbrcv_timeo = 0, sol_sbsnd_timeo = 0}}}
(kgdb) p *so->so_listen->sol_accept_filter
$3 = {accf_name = "httpready\000\000\000\000\000\000", accf_callback =
0xffffffff826e3000, accf_create = 0x0, accf_destroy = 0x0, accf_next =
{sle_next = 0x0}}
> Are there any other accept filters that are being dynamically loaded?
I don't really know, it's a standard squid from ports.
Tom
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