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Date:      Thu, 23 Dec 2021 12:02:27 +0000
From:      bugzilla-noreply@freebsd.org
To:        net@FreeBSD.org
Subject:   [Bug 260393] Page Fault tcp_output/tcp_input
Message-ID:  <bug-260393-7501-sDmN4ltIkg@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-260393-7501@https.bugs.freebsd.org/bugzilla/>
References:  <bug-260393-7501@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D260393

--- Comment #71 from Dobri Dobrev <ddobrev85@gmail.com> ---
(In reply to Hans Petter Selasky from comment #70)

(kgdb) frame 14
#14 0xffffffff80e0607a in tcp_do_segment (m=3D<optimized out>,
th=3D0xfffff80bc659e87a, so=3D<optimized out>, tp=3D0xfffffe0252e24000,
drop_hdrlen=3D40, tlen=3D<optimized out>, iptos=3D0 '\000') at
/usr/src/sys/netinet/tcp_input.c:2822
2822                                                    tcp_sack_partialack=
(tp,
th);
(kgdb) print /x *(tp->t_inpcb)
$5 =3D {inp_hash =3D {cle_next =3D 0x0, cle_prev =3D 0xfffffe020ae2fe18},
inp_pcbgrouphash =3D {cle_next =3D 0x0, cle_prev =3D 0x0}, inp_lock =3D {lo=
ck_object =3D
{lo_name =3D 0xffffffff811d9a83, lo_flags =3D 0x56b0000, lo_data =3D 0x0,=20
      lo_witness =3D 0xfffff8207fd75100}, rw_lock =3D 0xfffffe017fed7720}, =
inp_hpts
=3D {tqe_next =3D 0x0, tqe_prev =3D 0x0}, inp_hpts_request =3D 0x0, inp_in_=
hpts =3D 0x0,
inp_in_input =3D 0x0, inp_hpts_cpu =3D 0x0, inp_irq_cpu =3D 0x0,=20
  inp_refcount =3D 0x2, inp_flags =3D 0x8802000, inp_flags2 =3D 0x0, inp_in=
put_cpu =3D
0x0, inp_hpts_cpu_set =3D 0x0, inp_input_cpu_set =3D 0x0, inp_hpts_calls =
=3D 0x0,
inp_input_calls =3D 0x0, inp_irq_cpu_set =3D 0x0, inp_spare_bits2 =3D 0x0,=
=20
  inp_numa_domain =3D 0xff, inp_ppcb =3D 0xfffffe0252e24000, inp_socket =3D
0xfffff80900858000, inp_hptsslot =3D 0x0, inp_hpts_drop_reas =3D 0x0, inp_i=
nput =3D
{tqe_next =3D 0x0, tqe_prev =3D 0x0}, inp_pcbinfo =3D 0xfffffe00d856f758,=20
  inp_pcbgroup =3D 0x0, inp_pcbgroup_wild =3D {cle_next =3D 0x0, cle_prev =
=3D 0x0},
inp_cred =3D 0xfffff80107538500, inp_flow =3D 0x0, inp_vflag =3D 0x1, inp_i=
p_ttl =3D
0x40, inp_ip_p =3D 0x0, inp_ip_minttl =3D 0x0, inp_flowid =3D 0x5e457bf3,=20
  inp_snd_tag =3D 0x0, inp_flowtype =3D 0x82, inp_rss_listen_bucket =3D 0x0=
, inp_inc
=3D {inc_flags =3D 0x0, inc_len =3D 0x0, inc_fibnum =3D 0x1, inc_ie =3D {ie=
_fport =3D
0xa8c4, ie_lport =3D 0xf710, ie_dependfaddr =3D {id46_addr =3D {
          ia46_pad32 =3D {0x0, 0x0, 0x0}, ia46_addr4 =3D {s_addr =3D 0x2f29=
12b5}},
id6_addr =3D {__u6_addr =3D {__u6_addr8 =3D {0x0 <repeats 12 times>, 0xb5, =
0x12,
0x29, 0x2f}, __u6_addr16 =3D {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x12b5,=20
              0x2f29}, __u6_addr32 =3D {0x0, 0x0, 0x0, 0x2f2912b5}}}},
ie_dependladdr =3D {id46_addr =3D {ia46_pad32 =3D {0x0, 0x0, 0x0}, ia46_add=
r4 =3D
{s_addr =3D 0xd011ca95}}, id6_addr =3D {__u6_addr =3D {__u6_addr8 =3D {
              0x0 <repeats 12 times>, 0x95, 0xca, 0x11, 0xd0}, __u6_addr16 =
=3D
{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xca95, 0xd011}, __u6_addr32 =3D {0x0, 0x0, =
0x0,
0xd011ca95}}}}, ie6_zoneid =3D 0x0}}, inp_label =3D 0x0,=20
  inp_sp =3D 0xfffff80c371a4160, {inp_ip_tos =3D 0x0, inp_options =3D 0x0,
inp_moptions =3D 0x0}, {in6p_options =3D 0x0, in6p_outputopts =3D 0x0, in6p=
_moptions
=3D 0x0, in6p_icmp6filt =3D 0x0, in6p_cksum =3D 0x0, in6p_hops =3D 0x0},=20
  inp_portlist =3D {cle_next =3D 0xfffff80c25133d90, cle_prev =3D
0xfffff80c2574e160}, inp_phd =3D 0xfffff80105bbbf00, inp_gencnt =3D 0xa07c7=
c,
spare_ptr =3D 0x0, inp_rt_cookie =3D 0x63, {inp_route =3D {ro_nh =3D
0xfffff8016f136d00,=20
      ro_lle =3D 0xfffff8013c8a2a80, ro_prepend =3D 0x0, ro_plen =3D 0x0, r=
o_flags =3D
0x180, ro_mtu =3D 0x0, spare =3D 0x0, ro_dst =3D {sa_len =3D 0x10, sa_famil=
y =3D 0x2,
sa_data =3D {0x0, 0x0, 0xb5, 0x12, 0x29, 0x2f, 0x0, 0x0, 0x0, 0x0,=20
          0x0, 0x0, 0x0, 0x0}}}, inp_route6 =3D {ro_nh =3D 0xfffff8016f136d=
00,
ro_lle =3D 0xfffff8013c8a2a80, ro_prepend =3D 0x0, ro_plen =3D 0x0, ro_flag=
s =3D 0x180,
ro_mtu =3D 0x0, spare =3D 0x0, ro_dst =3D {sin6_len =3D 0x10,=20
        sin6_family =3D 0x2, sin6_port =3D 0x0, sin6_flowinfo =3D 0x2f2912b=
5,
sin6_addr =3D {__u6_addr =3D {__u6_addr8 =3D {0x0 <repeats 16 times>}, __u6=
_addr16 =3D
{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, __u6_addr32 =3D {0x0, 0x0, 0x0,=20
              0x0}}}, sin6_scope_id =3D 0x0}}}, inp_list =3D {cle_next =3D
0xfffff80c2580e000, cle_prev =3D 0xfffff80c2574e1d0}, inp_epoch_ctx =3D {da=
ta =3D
{0x0, 0x0}}}
(kgdb) print /x *(tp->t_inpcb->inp_socket)
$6 =3D {so_lock =3D {lock_object =3D {lo_name =3D 0xffffffff81203282, lo_fl=
ags =3D
0x1430000, lo_data =3D 0x0, lo_witness =3D 0xfffff8207fd84300}, mtx_lock =
=3D 0x0},
so_count =3D 0x0, so_rdsel =3D {si_tdlist =3D {tqh_first =3D 0x0,=20
      tqh_last =3D 0x0}, si_note =3D {kl_list =3D {slh_first =3D 0x0}, kl_l=
ock =3D
0xffffffff80cd4440, kl_unlock =3D 0xffffffff80cd4480, kl_assert_lock =3D
0xffffffff80cd44c0, kl_lockarg =3D 0xfffff80900858000, kl_autodestroy =3D 0=
x0},=20
    si_mtx =3D 0x0}, so_wrsel =3D {si_tdlist =3D {tqh_first =3D 0x0, tqh_la=
st =3D 0x0},
si_note =3D {kl_list =3D {slh_first =3D 0x0}, kl_lock =3D 0xffffffff80cd455=
0, kl_unlock
=3D 0xffffffff80cd4590, kl_assert_lock =3D 0xffffffff80cd45d0,=20
      kl_lockarg =3D 0xfffff80900858000, kl_autodestroy =3D 0x0}, si_mtx =
=3D 0x0},
so_type =3D 0x1, so_options =3D 0x10004, so_linger =3D 0x0, so_state =3D 0x=
410b, so_pcb
=3D 0xfffff8090099b1f0, so_vnet =3D 0xfffff8010582fec0,=20
  so_proto =3D 0xffffffff81b3be40, so_timeo =3D 0x0, so_error =3D 0x0, so_r=
error =3D
0x0, so_sigio =3D 0x0, so_cred =3D 0xfffff80107538500, so_label =3D 0x0, so=
_gencnt =3D
0xa23ff6, so_emuldata =3D 0x0, so_dtor =3D 0x0, osd =3D {
    osd_nslots =3D 0x0, osd_slots =3D 0x0, osd_next =3D {le_next =3D 0x0, l=
e_prev =3D
0x0}}, so_fibnum =3D 0x1, so_user_cookie =3D 0x0, so_ts_clock =3D 0x0,
so_max_pacing_rate =3D 0x0, {{so_rcv =3D {sb_mtx =3D {lock_object =3D {
            lo_name =3D 0xffffffff8127fc0a, lo_flags =3D 0x1030000, lo_data=
 =3D 0x0,
lo_witness =3D 0xfffff8207fd74800}, mtx_lock =3D 0x0}, sb_sx =3D {lock_obje=
ct =3D
{lo_name =3D 0xffffffff812debe2, lo_flags =3D 0x2330000, lo_data =3D 0x0,=20
            lo_witness =3D 0xfffff8207fd84400}, sx_lock =3D 0x1}, sb_sel =3D
0xfffff80900858028, sb_state =3D 0x20, sb_mb =3D 0x0, sb_mbtail =3D 0x0,
sb_lastrecord =3D 0x0, sb_sndptr =3D 0x0, sb_fnrdy =3D 0x0, sb_sndptroff =
=3D 0x0,=20
        sb_acc =3D 0x0, sb_ccc =3D 0x0, sb_hiwat =3D 0x10108, sb_mbcnt =3D =
0x0, sb_mcnt
=3D 0x0, sb_ccnt =3D 0x0, sb_mbmax =3D 0x80840, sb_ctl =3D 0x0, sb_tlscc =
=3D 0x0,
sb_tlsdcc =3D 0x0, sb_lowat =3D 0x1, sb_timeo =3D 0x0, sb_tls_seqno =3D 0x0=
,=20
        sb_tls_info =3D 0x0, sb_mtls =3D 0x0, sb_mtlstail =3D 0x0, sb_flags=
 =3D 0x800,
sb_upcall =3D 0x0, sb_upcallarg =3D 0x0, sb_aiojobq =3D {tqh_first =3D 0x0,=
 tqh_last =3D
0xfffff80900858230}, sb_aiotask =3D {ta_link =3D {stqe_next =3D 0x0},=20
          ta_pending =3D 0x0, ta_priority =3D 0x0, ta_flags =3D 0x0, ta_fun=
c =3D
0xffffffff80caceb0, ta_context =3D 0xfffff80900858000}}, so_snd =3D {sb_mtx=
 =3D
{lock_object =3D {lo_name =3D 0xffffffff81296bb1, lo_flags =3D 0x1030000,=20
            lo_data =3D 0x0, lo_witness =3D 0xfffff8207fd74780}, mtx_lock =
=3D
0xfffffe017fed7720}, sb_sx =3D {lock_object =3D {lo_name =3D 0xffffffff8130=
e57d,
lo_flags =3D 0x2330000, lo_data =3D 0x0, lo_witness =3D 0xfffff8207fd84380}=
,=20
          sx_lock =3D 0x1}, sb_sel =3D 0xfffff80900858070, sb_state =3D 0x1=
0, sb_mb =3D
0xfffff80bc680b500, sb_mbtail =3D 0xfffff80bc680b500, sb_lastrecord =3D
0xfffff80bc680b500, sb_sndptr =3D 0xfffff80bc680b500, sb_fnrdy =3D 0x0,=20
        sb_sndptroff =3D 0x0, sb_acc =3D 0x7cf, sb_ccc =3D 0x7cf, sb_hiwat =
=3D 0x10108,
sb_mbcnt =3D 0x900, sb_mcnt =3D 0x1, sb_ccnt =3D 0x1, sb_mbmax =3D 0x80840,=
 sb_ctl =3D
0x0, sb_tlscc =3D 0x0, sb_tlsdcc =3D 0x0, sb_lowat =3D 0x800,=20
        sb_timeo =3D 0x0, sb_tls_seqno =3D 0x0, sb_tls_info =3D 0x0, sb_mtl=
s =3D 0x0,
sb_mtlstail =3D 0x0, sb_flags =3D 0x800, sb_upcall =3D 0x0, sb_upcallarg =
=3D 0x0,
sb_aiojobq =3D {tqh_first =3D 0x0, tqh_last =3D 0xfffff80900858348},=20
        sb_aiotask =3D {ta_link =3D {stqe_next =3D 0x0}, ta_pending =3D 0x0,
ta_priority =3D 0x0, ta_flags =3D 0x0, ta_func =3D 0xffffffff80cad6f0, ta_c=
ontext =3D
0xfffff80900858000}}, so_list =3D {tqe_next =3D 0xffffffffffffffff,=20
        tqe_prev =3D 0xffffffffffffffff}, so_listen =3D 0x0, so_qstate =3D =
0x0,
so_peerlabel =3D 0x0, so_oobmark =3D 0x0, so_ktls_rx_list =3D {stqe_next =
=3D 0x0}},
{sol_incomp =3D {tqh_first =3D 0xffffffff8127fc0a, tqh_last =3D 0x1030000},=
=20
      sol_comp =3D {tqh_first =3D 0xfffff8207fd74800, tqh_last =3D 0x0}, so=
l_qlen =3D
0x812debe2, sol_incqlen =3D 0xffffffff, sol_qlimit =3D 0x2330000, sol_accep=
t_filter
=3D 0xfffff8207fd84400, sol_accept_filter_arg =3D 0x1,=20
      sol_accept_filter_str =3D 0xfffff80900858028, sol_upcall =3D 0x20,
sol_upcallarg =3D 0x0, sol_sbrcv_lowat =3D 0x0, sol_sbsnd_lowat =3D 0x0,
sol_sbrcv_hiwat =3D 0x0, sol_sbsnd_hiwat =3D 0x0, sol_sbrcv_flags =3D 0x0,=
=20
      sol_sbsnd_flags =3D 0x0, sol_sbrcv_timeo =3D 0x0, sol_sbsnd_timeo =3D=
 0x0,
sol_lastover =3D {tv_sec =3D 0x1010800000000, tv_usec =3D 0x0}, sol_overcou=
nt =3D
0x0}}}
(kgdb)

--=20
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