[Bug 264257] [tcp] Panic: Fatal trap 12: page fault while in kernel mode (if_io_tqg_4) - m_copydata ... at /usr/src/sys/kern/uipc_mbuf.c:659

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 15 Jun 2022 16:47:45 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264257

--- Comment #63 from Dmitriy <supportme@ukr.net> ---
(In reply to Michael Tuexen from comment #62)

Option was added to sysctl.conf, system rebooted, after reboot it definetly was
checked:
sysctl net.inet.tcp.tcp_pcap_packets
net.inet.tcp.tcp_pcap_packets: 10

Going to set net.inet.tcp.tcp_pcap_packets=30 for sure. Waiting for new core.

Offtop: meantime kernel was rebilt without INVARIANTS to continue running
without panicing, but logging. Hope results would be helpful too:

Jun 15 13:55:02 hostname kernel: tcp_output#1587: snd_max 1422777791 > so_snd+1
1422777790 adjusting.
Jun 15 13:55:47 hostname kernel: tcp_output#1587: snd_max 1422777792 > so_snd+1
1422777790 adjusting.
Jun 15 14:13:29 hostname kernel: tcp_output#1587: snd_max 75162767 > so_snd+1
75162766 adjusting.
Jun 15 14:14:15 hostname kernel: tcp_output#1587: snd_max 75162768 > so_snd+1
75162766 adjusting.
Jun 15 15:06:32 hostname kernel: tcp_output#1587: snd_max 2137549205 > so_snd+1
2137549204 adjusting.
Jun 15 15:15:53 hostname kernel: tcp_output#1587: snd_max 2960832867 > so_snd+1
2960832866 adjusting.
Jun 15 15:16:32 hostname kernel: tcp_output#1587: snd_max 1274542388 > so_snd+1
1274542387 adjusting.
Jun 15 15:16:32 hostname kernel: tcp_output#1587: snd_max 1274542389 > so_snd+1
1274542387 adjusting.
Jun 15 15:30:31 hostname kernel: tcp_output#1587: snd_max 2283463051 > so_snd+1
2283463050 adjusting.
Jun 15 15:35:43 hostname kernel: tcp_output#1587: snd_max 336646110 > so_snd+1
336646109 adjusting.
Jun 15 15:38:35 hostname kernel: tcp_output#1587: snd_max 1227541195 > so_snd+1
1227541194 adjusting.
Jun 15 15:38:35 hostname kernel: tcp_output#1587: snd_max 1227541196 > so_snd+1
1227541194 adjusting.
Jun 15 16:56:46 hostname kernel: tcp_output#1587: snd_max 382752252 > so_snd+1
382752251 adjusting.
Jun 15 16:56:46 hostname kernel: tcp_output#1587: snd_max 382752253 > so_snd+1
382752251 adjusting.
Jun 15 17:08:42 hostname kernel: tcp_output#1587: snd_max 359933951 > so_snd+1
359933950 adjusting.
Jun 15 17:08:42 hostname kernel: tcp_output#1587: snd_max 359933952 > so_snd+1
359933950 adjusting.
Jun 15 17:09:31 hostname kernel: tcp_output#1587: snd_max 205782007 > so_snd+1
205782006 adjusting.
Jun 15 17:09:41 hostname kernel: tcp_output#1587: snd_max 205782008 > so_snd+1
205782006 adjusting.
Jun 15 17:09:53 hostname kernel: tcp_output#1587: snd_max 205782009 > so_snd+1
205782006 adjusting.
Jun 15 17:10:03 hostname kernel: tcp_output#1587: snd_max 205782010 > so_snd+1
205782006 adjusting.
Jun 15 17:22:07 hostname kernel: tcp_output#1587: snd_max 4147118877 > so_snd+1
4147118876 adjusting.
Jun 15 17:36:46 hostname kernel: tcp_output#1587: snd_max 494998134 > so_snd+1
494998133 adjusting.
Jun 15 18:27:14 hostname kernel: tcp_output#1587: snd_max 2387061338 > so_snd+1
2387061337 adjusting.
Jun 15 19:22:28 hostname kernel: tcp_output#1587: snd_max 725541353 > so_snd+1
725541352 adjusting.
Jun 15 19:23:53 hostname kernel: tcp_output#1587: snd_max 607018670 > so_snd+1
607018669 adjusting.
Jun 15 19:24:03 hostname kernel: tcp_output#1587: snd_max 607018671 > so_snd+1
607018669 adjusting.
Jun 15 19:24:14 hostname kernel: tcp_output#1587: snd_max 607018672 > so_snd+1
607018669 adjusting.
Jun 15 19:24:24 hostname kernel: tcp_output#1587: snd_max 607018673 > so_snd+1
607018669 adjusting.
Jun 15 19:24:34 hostname kernel: tcp_output#1587: snd_max 607018674 > so_snd+1
607018669 adjusting.
Jun 15 19:24:44 hostname kernel: tcp_output#1587: snd_max 607018675 > so_snd+1
607018669 adjusting.

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