[Bug 293227] VNET jail regression on 14-STABLE from 14.3 using bridge and epair

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Newsgroups gmane.os.freebsd.devel.net
Message-ID <[email protected]/bugzilla/> 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=293227

--- Comment #5 from Tom Hukins <[email protected]> ---
Created attachment 268138
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=268138&action=edit
Packet capture from tcpdump against 14-STABLE (broken)

18:12:19.894007 IP6 fdcc:ac21:2e44:1::1.51747 > fdcc:ac21:2e44::1.9090: Flags
[S], seq 4030456999, win 65535, options [mss 1440,nop,wscale 6,sackOK,TS val
1548744928 ecr 0], length 0
18:12:19.894028 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[S.], seq 2997298949, ack 4030457000, win 65535, options [mss 1440,nop,wscale
6,sackOK,TS val 3717466000 ecr 1548744928], length 0
18:12:19.894064 IP6 fdcc:ac21:2e44:1::1.51747 > fdcc:ac21:2e44::1.9090: Flags
[.], ack 1, win 1035, options [nop,nop,TS val 1548744928 ecr 3717466000],
length 0
18:12:19.894125 IP6 fdcc:ac21:2e44:1::1.51747 > fdcc:ac21:2e44::1.9090: Flags
[F.], seq 1, ack 1, win 1035, options [nop,nop,TS val 1548744928 ecr
3717466000], length 0
18:12:19.894132 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], ack 2, win 1035, options [nop,nop,TS val 3717466000 ecr 1548744928],
length 0
18:12:19.894460 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 1:1429, ack 2, win 1035, options [nop,nop,TS val 3717466000 ecr
1548744928], length 1428
18:12:19.894500 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:19.894511 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 1429:2857, ack 2, win 1035, options [nop,nop,TS val 3717466000 ecr
1548744928], length 1428
18:12:19.894526 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:19.894532 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 2857:4285, ack 2, win 1035, options [nop,nop,TS val 3717466000 ecr
1548744928], length 1428
18:12:19.894545 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:19.894550 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 4285:5713, ack 2, win 1035, options [nop,nop,TS val 3717466000 ecr
1548744928], length 1428
18:12:19.894563 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:19.894568 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 5713:7141, ack 2, win 1035, options [nop,nop,TS val 3717466000 ecr
1548744928], length 1428
18:12:19.894581 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:19.894586 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 7141:8569, ack 2, win 1035, options [nop,nop,TS val 3717466000 ecr
1548744928], length 1428
18:12:19.894598 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:19.894603 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 8569:9997, ack 2, win 1035, options [nop,nop,TS val 3717466000 ecr
1548744928], length 1428
18:12:19.894615 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:19.894620 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 9997:11425, ack 2, win 1035, options [nop,nop,TS val 3717466000 ecr
1548744928], length 1428
18:12:19.894632 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:19.894637 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 11425:12853, ack 2, win 1035, options [nop,nop,TS val 3717466000 ecr
1548744928], length 1428
18:12:19.894650 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:19.894655 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 12853:14281, ack 2, win 1035, options [nop,nop,TS val 3717466000 ecr
1548744928], length 1428
18:12:19.894668 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:20.139069 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 1:1429, ack 2, win 1035, options [nop,nop,TS val 3717466245 ecr
1548744928], length 1428
18:12:20.139110 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:20.407869 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 1:1429, ack 2, win 1035, options [nop,nop,TS val 3717466514 ecr
1548744928], length 1428
18:12:20.407931 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:20.724424 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 1:1429, ack 2, win 1035, options [nop,nop,TS val 3717466830 ecr
1548744928], length 1428
18:12:20.724454 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:21.167421 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 1:1429, ack 2, win 1035, options [nop,nop,TS val 3717467273 ecr
1548744928], length 1428
18:12:21.167473 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:21.855169 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 1:1429, ack 2, win 1035, options [nop,nop,TS val 3717467961 ecr
1548744928], length 1428
18:12:21.855214 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:23.077401 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 1:1429, ack 2, win 1035, options [nop,nop,TS val 3717469183 ecr
1548744928], length 1428
18:12:23.077450 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:24.874585 IP6 fdcc:ac21:2e44::1 > fdcc:ac21:2e44::: ICMP6, neighbor
solicitation, who has fdcc:ac21:2e44::, length 32
18:12:24.874607 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, neighbor
advertisement, tgt is fdcc:ac21:2e44::, length 24
18:12:24.874634 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, neighbor
solicitation, who has fdcc:ac21:2e44::1, length 32
18:12:24.874639 IP6 fdcc:ac21:2e44::1 > fdcc:ac21:2e44::: ICMP6, neighbor
advertisement, tgt is fdcc:ac21:2e44::1, length 24
18:12:25.262903 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 1:1429, ack 2, win 1035, options [nop,nop,TS val 3717471369 ecr
1548744928], length 1428
18:12:25.262951 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240
18:12:29.313322 IP6 fdcc:ac21:2e44::1.9090 > fdcc:ac21:2e44:1::1.51747: Flags
[.], seq 1:1429, ack 2, win 1035, options [nop,nop,TS val 3717475419 ecr
1548744928], length 1428
18:12:29.313376 IP6 fdcc:ac21:2e44:: > fdcc:ac21:2e44::1: ICMP6, packet too
big, mtu 1420, length 1240

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