Tinc 1.1pre15 double-crash

[Niklas Hambüchen]

Hello,

this morning I apparently had tinc crash on me.
In 2 independent tinc clusters of 3 nodes each (but located in the same datacenter), one tinc process crashed in each of the clusters.

One process apparently with `status=6/ABRT`, the other with `status=11/SEGV`.

Interestingly, they crashed with only 5 minutes difference.
The only thing I can come up with that might explain this correlation is that somebody within the same data center decided to send funny UDP packets to everybody that happened to be able to crash tinc, and they did it to first one server and then the other one.

I have attached the systemd logs of the two tinc processes.
Unfortunately core dumps were disabled on these systems, so I cannot provide those.
I have enabled them now in case the problem appears again.

There is still the possibility that tinc is not at fault and something on the system killed it (e.g. literally sent SIGABRT or SIGSEGV to tinc). But I'm not aware of anything on those systems that would do that to tinc, and if it is a systemd feature that does that, then I'm not aware of that. (I know that systemd can send SIGABRT when using watchdogs, but there are no systemd watchdogs configured for my tinc service, and I can't even come up with a situation where systemd would send SIGSEGV to a process).

I would appreciate any insights!
Niklas
-------------- next part --------------
May 09 21:25:20 node-1 tincd[22507]: Invalid packet seqno: 93322 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 21:25:20 node-1 tincd[22507]: Invalid packet seqno: 93323 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 21:25:20 node-1 tincd[22507]: Invalid packet seqno: 93324 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 21:25:20 node-1 tincd[22507]: Invalid packet seqno: 93325 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 21:25:20 node-1 tincd[22507]: Invalid packet seqno: 93326 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 21:25:20 node-1 tincd[22507]: Invalid packet seqno: 93327 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 21:25:20 node-1 tincd[22507]: Invalid packet seqno: 93328 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 90 != 0 from node_3 (10.0.0.2 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 91 != 0 from node_3 (10.0.0.2 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 92 != 0 from node_3 (10.0.0.2 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 93 != 0 from node_3 (10.0.0.2 port 655)
May 09 09:25:24 node-1 tincd[14195]: Handshake phase not finished yet from node_3 (10.0.0.2 port 655)
May 09 09:25:24 node-1 tincd[14195]: Failed to decrypt and verify packet from node_2 (10.0.0.3 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 9 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 12 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 13 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 14 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 15 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 16 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 17 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 18 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 94 != 0 from node_3 (10.0.0.2 port 655)
May 09 09:25:24 node-1 tincd[14195]: Invalid packet seqno: 95 != 0 from node_3 (10.0.0.2 port 655)
May 09 09:25:24 node-1 tincd[14195]: Handshake phase not finished yet from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 96 != 0 from node_3 (10.0.0.2 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 332 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 333 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Handshake phase not finished yet from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 334 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 335 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 336 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 337 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 338 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 339 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 340 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 341 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 342 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 343 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 344 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 345 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 346 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 347 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 348 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 349 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 350 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 351 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 352 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 353 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 354 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 355 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 356 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 357 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 358 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 359 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 360 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 361 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 362 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 363 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 364 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 365 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 366 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 367 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 368 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 369 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 370 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 371 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 372 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 373 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 374 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 375 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 376 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 377 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 378 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 379 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 380 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 381 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 382 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 383 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 384 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 385 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:25 node-1 tincd[14195]: Invalid packet seqno: 386 != 0 from node_2 (10.0.0.3 port 655)
May 09 09:25:44 node-1 tincd[14195]: Got REQ_KEY from node_3 while we already started a SPTPS session!
May 09 09:25:44 node-1 tincd[14195]: Handshake phase not finished yet from node_3 (10.0.0.2 port 655)
May 09 09:25:44 node-1 tincd[14195]: Got REQ_KEY from node_2 while we already started a SPTPS session!
May 09 09:25:44 node-1 tincd[14195]: Got REQ_KEY from node_2 while we already started a SPTPS session!
May 09 09:25:44 node-1 tincd[14195]: Handshake phase not finished yet from node_2 (10.0.0.3 port 655)
May 09 09:25:44 node-1 tincd[14195]: Handshake phase not finished yet from node_2 (10.0.0.3 port 655)
May 09 09:25:44 node-1 tincd[14195]: Got REQ_KEY from node_2 while we already started a SPTPS session!
May 09 09:25:44 node-1 tincd[14195]: Handshake phase not finished yet from node_2 (10.0.0.3 port 655)
May 09 09:25:44 node-1 tincd[14195]: Got REQ_KEY from node_3 while we already started a SPTPS session!
May 09 09:25:44 node-1 tincd[14195]: Handshake phase not finished yet from node_3 (10.0.0.2 port 655)
May 09 09:25:44 node-1 tincd[14195]: Got REQ_KEY from worker_2 while we already started a SPTPS session!
May 09 09:25:44 node-1 tincd[14195]: Got REQ_KEY from worker_2 while we already started a SPTPS session!
May 09 09:25:44 node-1 tincd[14195]: Got REQ_KEY from node_2 while we already started a SPTPS session!
May 09 09:25:54 node-1 tincd[14195]: Got REQ_KEY from node_3 while we already started a SPTPS session!
May 09 09:25:54 node-1 tincd[14195]: Handshake phase not finished yet from node_3 (10.0.0.2 port 655)
May 09 09:25:54 node-1 tincd[14195]: Handshake phase not finished yet from node_3 (10.0.0.2 port 655)
May 09 09:25:54 node-1 tincd[14195]: Handshake phase not finished yet from node_3 (10.0.0.2 port 655)
May 09 09:25:54 node-1 tincd[14195]: Handshake phase not finished yet from node_3 (10.0.0.2 port 655)
May 09 09:25:55 node-1 tincd[14195]: Handshake phase not finished yet from node_3 (10.0.0.2 port 655)
May 09 09:25:55 node-1 tincd[14195]: Handshake phase not finished yet from node_3 (10.0.0.2 port 655)
May 09 09:25:55 node-1 tincd[14195]: Metadata socket read error for node_2 (10.0.0.3 port 56792): Connection reset by peer
May 09 09:25:55 node-1 tincd[14195]: Got REQ_KEY from node_3 while we already started a SPTPS session!
May 09 09:25:55 node-1 tincd[14195]: Handshake phase not finished yet from node_3 (10.0.0.2 port 655)
May 09 09:25:55 node-1 tincd[14195]: Got REQ_KEY from node_2 while we already started a SPTPS session!
May 09 10:33:31 node-1 tincd[14195]: Got REQ_KEY from cdn_1 while we already started a SPTPS session!
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1107 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1108 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1109 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1110 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1111 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1112 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1113 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1114 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1115 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1116 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1117 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1118 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1119 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1120 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1121 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1122 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1123 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1124 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1125 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1126 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1127 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1128 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1129 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1130 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1131 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1132 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1133 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1134 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1135 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1136 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1137 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Invalid packet seqno: 1138 != 1 from cdn_1 (10.0.0.1 port 655)
May 09 10:33:31 node-1 tincd[14195]: Handshake phase not finished yet from cdn_1 (10.0.0.1 port 655)
May 09 09:19:44 node-1 tincd[918]: Invalid session state zero
May 09 09:19:44 node-1 tincd[918]: Invalid packet seqno: 1 != 0 from worker_2 (144.76.96.22 port 655)
May 09 09:19:44 node-1 tincd[918]: Invalid session state zero
May 09 09:19:44 node-1 tincd[918]: Invalid packet seqno: 1 != 0 from cdn_1 (10.0.0.1 port 655)
May 09 09:19:44 node-1 tincd[918]: Got REQ_KEY from worker_1 while we already started a SPTPS session!
May 09 09:19:44 node-1 tincd[918]: Invalid packet seqno: 0 != 1 from worker_1 (178.63.78.2 port 655)
May 09 09:19:44 node-1 tincd[918]: Failed to verify SIG record from worker_1 (178.63.78.2 port 655)
May 09 09:19:44 node-1 tincd[918]: Got REQ_KEY from worker_1 while we already started a SPTPS session!
May 09 09:19:44 node-1 tincd[918]: Invalid packet seqno: 0 != 2 from node_3 (10.0.0.2 port 655)
May 09 09:19:44 node-1 tincd[918]: Invalid packet seqno: 1 != 2 from node_3 (10.0.0.2 port 655)
May 09 09:19:44 node-1 tincd[918]: Got REQ_KEY from node_3 while we already started a SPTPS session!
May 09 09:19:44 node-1 tincd[918]: Got REQ_KEY from worker_1 while we already started a SPTPS session!
May 09 09:19:44 node-1 tincd[918]: Got REQ_KEY from node_3 while we already started a SPTPS session!
May 09 09:19:44 node-1 tincd[918]: Got REQ_KEY from node_2 while we already started a SPTPS session!
May 09 09:19:44 node-1 tincd[918]: Got REQ_KEY from node_3 while we already started a SPTPS session!
May 09 09:19:44 node-1 tincd[918]: Unknown cipher nid -1!
May 09 09:19:44 node-1 tincd[918]: Node node_3 (10.0.0.2 port 655) uses unknown cipher!
May 09 09:19:44 node-1 tincd[918]: Error while processing ANS_KEY from node_3 (10.0.0.2 port 38406)
May 09 09:19:44 node-1 systemd[1]: tinc.myvpn.service: Main process exited, code=killed, status=11/SEGV
May 09 09:19:44 node-1 systemd[1]: tinc.myvpn.service: Unit entered failed state.
May 09 09:19:44 node-1 systemd[1]: tinc.myvpn.service: Failed with result 'signal'.
May 09 09:19:47 node-1 systemd[1]: tinc.myvpn.service: Service hold-off time over, scheduling restart.
May 09 09:19:47 node-1 systemd[1]: tinc.myvpn.service: Failed to schedule restart job: Transaction is destructive.
May 09 09:19:47 node-1 systemd[1]: tinc.myvpn.service: Unit entered failed state.
May 09 09:19:47 node-1 systemd[1]: tinc.myvpn.service: Failed with result 'signal'.
-------------- next part --------------
May 09 09:24:09 node-1 tincd[1010]: Invalid packet seqno: 56 != 1 from node_2 (192.168.0.1 port 655)
May 09 09:24:09 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:09 node-1 tincd[1010]: Invalid packet seqno: 57 != 1 from node_2 (192.168.0.1 port 655)
May 09 09:24:09 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:09 node-1 tincd[1010]: Invalid packet seqno: 58 != 1 from node_2 (192.168.0.1 port 655)
May 09 09:24:09 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:10 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:10 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:10 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:10 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:10 node-1 tincd[1010]: Invalid packet seqno: 59 != 1 from node_2 (192.168.0.1 port 655)
May 09 09:24:10 node-1 tincd[1010]: Invalid packet seqno: 60 != 1 from node_2 (192.168.0.1 port 655)
May 09 09:24:10 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:10 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:11 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:11 node-1 tincd[1010]: Invalid packet seqno: 61 != 1 from node_2 (192.168.0.1 port 655)
May 09 09:24:11 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:11 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:11 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:12 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:12 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:12 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:12 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:12 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:13 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:13 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:13 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:14 node-1 tincd[1010]: Invalid packet seqno: 62 != 1 from node_2 (192.168.0.1 port 655)
May 09 09:24:14 node-1 tincd[1010]: Invalid packet seqno: 63 != 1 from node_2 (192.168.0.1 port 655)
May 09 09:24:14 node-1 tincd[1010]: Got REQ_KEY from node_3 while we already started a SPTPS session!
May 09 09:24:14 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:14 node-1 tincd[1010]: Handshake phase not finished yet from node_3 (138.201.20.33 port 655)
May 09 09:24:14 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:14 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:15 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:15 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:16 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:16 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:16 node-1 tincd[1010]: Handshake phase not finished yet from node_2 (192.168.0.1 port 655)
May 09 09:24:16 node-1 systemd[1]: tinc.myvpn.service: Main process exited, code=killed, status=6/ABRT
May 09 09:24:16 node-1 systemd[1]: tinc.myvpn.service: Unit entered failed state.
May 09 09:24:16 node-1 systemd[1]: tinc.myvpn.service: Failed with result 'signal'.
May 09 09:24:19 node-1 systemd[1]: tinc.myvpn.service: Service hold-off time over, scheduling restart.
May 09 09:24:19 node-1 systemd[1]: tinc.myvpn.service: Failed to schedule restart job: Transaction is destructive.
May 09 09:24:19 node-1 systemd[1]: tinc.myvpn.service: Unit entered failed state.
May 09 09:24:19 node-1 systemd[1]: tinc.myvpn.service: Failed with result 'signal'.