https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256393
--- Comment #2 from Nathan Whitehorn <***@FreeBSD.org> ---
(In reply to Kubilay Kocak from comment #1)
Here are a whole bunch of logs:
FreeBSD xxxxxxxxxxxxxxx 13.0-STABLE FreeBSD 13.0-STABLE #1
stable/13-n245818-ae23d302479: Wed Jun 2 10:27:55 EDT 2021
***@terel.tachypleus.net:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64
From the ppp log (key portion is "Error: ipcp_InterfaceUp: unable to set ip
address"):
Jun 3 17:10:07 conference syslogd: last message repeated 1 times
Jun 3 17:10:07 conference ppp[8508]: tun0: IPCP: deflink: RecvConfigAck(2)
state = Ack-Sent
Jun 3 17:10:07 conference ppp[8508]: tun0: IPCP: IPADDR[6] 192.168.42.1
Jun 3 17:10:07 conference ppp[8508]: tun0: IPCP: COMPPROTO[6] 16 VJ slots
with slot compression
Jun 3 17:10:07 conference ppp[8508]: tun0: IPCP: deflink: State change
Ack-Sent --> Opened
Jun 3 17:10:07 conference ppp[8508]: tun0: IPCP: deflink: LayerUp.
Jun 3 17:10:07 conference ppp[8508]: tun0: IPCP: myaddr 192.168.42.1 hisaddr =
192.168.42.2
Jun 3 17:10:07 conference ppp[8508]: tun0: Warning: iface add:
ioctl(SIOCAIFADDR, 192.168.42.1 -> 192.168.42.2): File exists
Jun 3 17:10:07 conference ppp[8508]: tun0: Error: ipcp_InterfaceUp: unable to
set ip address
Jun 3 17:10:07 conference ppp[8508]: tun0: IPCP: deflink: LayerDown:
192.168.42.1
Jun 3 17:10:07 conference ppp[8508]: tun0: IPCP: deflink: SendTerminateReq(3)
state = Opened
Jun 3 17:10:07 conference ppp[8508]: tun0: IPCP: deflink: State change Opened
--> Closing
Jun 3 17:10:07 conference ppp[8508]: tun0: LCP: deflink: SendIdent(4) state =
Opened
Jun 3 17:10:07 conference ppp[8508]: tun0: LCP: MAGICNUM c6d8cf0b
Jun 3 17:10:07 conference ppp[8508]: tun0: LCP: TEXT user-ppp 3.4.2
Jun 3 17:10:08 conference ppp[8508]: tun0: Warning: ipv4_Input: IPCP not open
- packet dropped
Jun 3 17:10:10 conference syslogd: last message repeated 3 times
Jun 3 17:10:10 conference ppp[8508]: tun0: IPCP: deflink: SendTerminateReq(3)
state = Closing
Jun 3 17:10:11 conference ppp[8508]: tun0: Warning: ipv4_Input: IPCP not open
- packet dropped
Jun 3 17:10:13 conference syslogd: last message repeated 5 times
Jun 3 17:10:14 conference ppp[8508]: tun0: IPCP: deflink: SendTerminateReq(3)
state = Closing
Jun 3 17:10:14 conference ppp[8508]: tun0: Warning: ipv4_Input: IPCP not open
- packet dropped
Jun 3 17:43:15 conference syslogd: last message repeated 1 times
Jun 3 17:43:15 conference ppp[8811]: tun0: IPCP: deflink: RecvConfigAck(2)
state = Ack-Sent
Jun 3 17:43:15 conference ppp[8811]: tun0: IPCP: IPADDR[6] 192.168.42.1
Jun 3 17:43:15 conference ppp[8811]: tun0: IPCP: COMPPROTO[6] 16 VJ slots
with slot compression
Jun 3 17:43:15 conference ppp[8811]: tun0: IPCP: deflink: State change
Ack-Sent --> Opened
Jun 3 17:43:15 conference ppp[8811]: tun0: IPCP: deflink: LayerUp.
Jun 3 17:43:15 conference ppp[8811]: tun0: IPCP: myaddr 192.168.42.1 hisaddr =
192.168.42.2
Jun 3 17:43:15 conference ppp[8811]: tun0: Warning: iface add:
ioctl(SIOCAIFADDR, 192.168.42.1 -> 192.168.42.2): File exists
Jun 3 17:43:15 conference ppp[8811]: tun0: Error: ipcp_InterfaceUp: unable to
set ip address
Jun 3 17:43:15 conference ppp[8811]: tun0: IPCP: deflink: LayerDown:
192.168.42.1
Jun 3 17:43:15 conference ppp[8811]: tun0: IPCP: deflink: SendTerminateReq(3)
state = Opened
Jun 3 17:43:15 conference ppp[8811]: tun0: IPCP: deflink: State change Opened
--> Closing
Jun 3 17:43:15 conference ppp[8811]: tun0: LCP: deflink: SendIdent(4) state =
Opened
Jun 3 17:43:15 conference ppp[8811]: tun0: LCP: MAGICNUM d57f3e26
Jun 3 17:43:15 conference ppp[8811]: tun0: LCP: TEXT user-ppp 3.4.2
Jun 3 17:43:15 conference ppp[8811]: tun0: Warning: ipv4_Input: IPCP not open
- packet dropped
Jun 3 17:43:18 conference syslogd: last message repeated 3 times
Nothing in dmesg with tun_debug set except this:
tun0: tunpoll
tun0: tunpoll waiting
I can try to bisect, but it might be a little while as this is an important
production machine.
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