FRR on FreeBSD 12 - problems with OSPFv3

Fri Oct 11 09:09:17 UTC 2019

I just upgraded from FreeBSD 11 to 12 and upgrade from quagga to FRR at 
the same time. I've tried frr6 and frr7 and get the same errors.

bgpd and ospfd work fine, but ospf6 doesn't work.  Not sure what I'm 
going wrong.

If I commend out all the interfaces EXCEPT lo0, ospf6d does not crash.

router ospf6
  ospf6 router-id 172.17.18.98
  redistribute connected route-map MONKEY-ospf6
  redistribute static route-map MONKEY-AND-MORE-ospf6
  !interface cxl1 area 0.0.0.0
  !interface cxl2 area 0.0.0.0
  !interface cxl3 area 0.0.0.0
  interface lo0 area 0.0.0.0

As soon as I get routes from my network, ospf6d tanks.

Any thoughts?

Here is the output from zebra and ospf6.

*** LOGS ***

2019/10/10 23:19:31 OSPF6: Scheduling cxl1 for sso
2019/10/10 23:19:31 OSPF6: SPF: Scheduled in 0 msec
2019/10/10 23:19:31 OSPF6: SPF processing: # Areas: 1, SPF runtime: 0 
sec 5 usec, Reason: L+

2019/10/10 23:19:31 OSPF6: Scheduling cxl2 for sso
2019/10/10 23:19:31 OSPF6: SPF: Scheduled in 50 msec
2019/10/10 23:19:31 OSPF6: Scheduling cxl3 for sso
2019/10/10 23:19:31 OSPF6: Neighbor state change 172.17.24.25%cxl3: 
[Down]->[Init] (HelloReceived)
2019/10/10 23:19:31 OSPF6: Neighbor state change 172.17.24.25%cxl3: 
[Init]->[ExStart] (2-WayReceived)
2019/10/10 23:19:31 OSPF6: Neighbor state change 172.17.24.25%cxl3: 
[ExStart]->[ExChange] (NegotiationDone)
2019/10/10 23:19:31 OSPF6: Neighbor state change 172.17.24.25%cxl3: 
[ExChange]->[Loading] (ExchangeDone)
2019/10/10 23:19:31 OSPF6: SPF processing: # Areas: 1, SPF runtime: 0 
sec 109 usec, Reason: R+, R-, L+

2019/10/10 23:19:31 OSPF6: SPF: Scheduled in 83 msec
2019/10/10 23:19:31 OSPF6: SPF processing: # Areas: 1, SPF runtime: 0 
sec 116 usec, Reason: R+, N+, L+

2019/10/10 23:19:33 OSPF6: Neighbor state change 10.8.254.122%cxl1: 
[Down]->[Init] (HelloReceived)
2019/10/10 23:19:33 OSPF6: Neighbor state change 10.8.254.122%cxl1: 
[Init]->[ExStart] (2-WayReceived)
2019/10/10 23:19:33 OSPF6: Neighbor state change 10.8.254.122%cxl1: 
[ExStart]->[ExChange] (NegotiationDone)
2019/10/10 23:19:33 OSPF6: Neighbor state change 10.8.254.122%cxl1: 
[ExChange]->[Loading] (ExchangeDone)
2019/10/10 23:19:33 OSPF6: SPF: Scheduled in 0 msec
2019/10/10 23:19:33 OSPF6: SPF processing: # Areas: 1, SPF runtime: 0 
sec 99 usec, Reason: R+, R-

2019/10/10 23:19:36 OSPF6: Neighbor state change 172.17.24.25%cxl3: 
[Loading]->[Full] (LoadingDone)
2019/10/10 23:19:36 OSPF6: SPF: Scheduled in 0 msec
2019/10/10 23:19:31 ZEBRA: client 32 says hello and bids fair to 
announce only ospf6 routes vrf=0
2019/10/10 23:19:38 ZEBRA: [EC 4043309117] Client 'ospf6' encountered an 
error and is shutting down.
2019/10/10 23:19:38 ZEBRA: release_daemon_table_chunks: Released 0 table 
chunks
2019/10/10 23:19:38 ZEBRA: release_daemon_label_chunks: Released 0 label 
chunks
2019/10/10 23:19:39 ZEBRA: client 32 disconnected. 100 ospf6 routes 
removed from the rib

*** CRASH ***
If I run on the command line and don't background, it bombs after 7 
seconds:
# ospf6d
Illegal instruction

Here is the end of truss:
# truss ospf6d
...
mmap(0x0,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 
34863378432 (0x81e04f000)
mmap(0x0,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 
34863382528 (0x81e050000)
mmap(0x0,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 
34863386624 (0x81e051000)
mmap(0x0,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 
34863390720 (0x81e052000)
SIGNAL 11 (SIGSEGV) code=SEGV_ACCERR trapno=12 addr=0x7fffdffffff8
process killed, signal = 4

I wasn't seeing any CORE files when the process dumped, so I turned this 
knob:
sysctl kern.sugid_coredump=1

Now there is a 1 GByte core file!

# /usr/obj/usr/src/amd64.amd64/gnu/usr.bin/gdb/gdb/gdb 
/usr/local/sbin/ospf6d ospf6d.core

(gdb) bt
#0  0x000000080030678c in hash_get () from /usr/local/lib/libfrr.so.0
#1  0x000000080033a9b2 in route_node_lookup () from 
/usr/local/lib/libfrr.so.0
#2  0x0000000000241345 in ospf6_route_lookup ()
#3  0x000000000022e718 in ospf6_abr_examin_summary ()
#4  0x000000000022f13b in ospf6_abr_examin_brouter ()
#5  0x00000000002473ad in ospf6_top_init ()
#6  0x000000000022efda in ospf6_abr_examin_summary ()
#7  0x000000000022f13b in ospf6_abr_examin_brouter ()
#8  0x00000000002473ad in ospf6_top_init ()
#9  0x000000000022efda in ospf6_abr_examin_summary ()
#10 0x000000000022f13b in ospf6_abr_examin_brouter ()
#11 0x00000000002473ad in ospf6_top_init ()
.... lines #3 - #5 repeat to over #8500 ... I stopped hitting ENTER 
around there and quit.

*** The CONFIG ***
!
! Zebra configuration saved from vty
!   2019/10/10 23:58:21
!
frr version 7.1
frr defaults traditional
!
hostname red-ospf6
password r3moved
log file /var/log/frr/ospf6d.log
service advanced-vty
!
debug ospf6 neighbor state
!
!
interface cxl1
  ipv6 ospf6 cost 1
  ipv6 ospf6 priority 0
  ipv6 ospf6 network point-to-point
!
interface cxl2
  ipv6 ospf6 cost 1
  ipv6 ospf6 priority 0
  ipv6 ospf6 network point-to-point
!
interface cxl3
  ipv6 ospf6 cost 1
  ipv6 ospf6 priority 0
  ipv6 ospf6 network point-to-point
!
interface lo0
  ipv6 ospf6 cost 1
  ipv6 ospf6 network broadcast
!
router ospf6
  ospf6 router-id 172.17.17.17  (made example IP)
  redistribute connected route-map MONKEY-ospf6
  !redistribute static route-map MONKEY-AND-MORE-ospf6
  interface lo0 area 0.0.0.0
  interface cxl1 area 0.0.0.0
  interface cxl2 area 0.0.0.0
  interface cxl3 area 0.0.0.0
!
access-list access4 permit 127.0.0.1/32
!
ipv6 access-list access6 permit ::1/128
!
ipv6 prefix-list CustomerOspf seq 5 permit 2620:62:c000::/48 le 64
ipv6 prefix-list CustomerOspf seq 99 deny any
ipv6 prefix-list DefaultOnly seq 5 permit ::/0
ipv6 prefix-list DefaultOnly seq 99 deny any
ipv6 prefix-list MonkeyOspf seq 5 permit 2607:f598::/32 le 64
ipv6 prefix-list MonkeyOspf seq 10 permit 2607:f598:0:dada::/64 le 128
ipv6 prefix-list MonkeyOspf seq 99 deny any
ipv6 prefix-list SFMix seq 5 permit 2001:504:30::/64
ipv6 prefix-list SFMix seq 99 deny any
!
route-map MONKEY-AND-MORE-ospf6 permit 10
  match ipv6 address prefix-list CustomerOspf
  set metric-type type-2
  set metric 21
!
route-map MONKEY-AND-MORE-ospf6 permit 20
  match ipv6 address prefix-list MonkeyOspf
  set metric 21
!
route-map MONKEY-AND-MORE-ospf6 permit 30
  match ipv6 address prefix-list DefaultOnly
  set metric 21
!
route-map MONKEY-AND-MORE-ospf6 permit 40
  match ipv6 address prefix-list SFMix
  set metric 221
!
route-map MONKEY-ospf6 permit 10
  match ipv6 address prefix-list MonkeyOspf
  set metric-type type-2
  set metric 21
!
route-map MONKEY-ospf6 permit 20
  match ipv6 address prefix-list SFMix
  set metric 20
  set metric-type type-2
!
route-map MONKEY-ospf6 permit 30
  set metric 22
!
line vty
  access-class access4
  ipv6 access-class access6
  exec-timeout 0 0
!

Any help would be appreciated.

Rudy