Hello, Please try this patch:
https://bugs.freebsd.org/bugzilla/attachment.cgi?id=224258&action=diff https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=255089 Thank you. Best regards, David S. ------------------------------------------------ e. da...@zeromail.us w. pnyet.web.id p. 087881216110 On Sun, Aug 29, 2021 at 5:07 PM Alexander V. Chernikov <melif...@ipfw.ru> wrote: > > > On 28 Aug 2021, at 15:23, Luiz Amaral <em...@luiz.eng.br> wrote: > > > > Hello guys, > Hi Luiz, > > > > > After upgrading one of my hosts from FreeBSD 12.2 to FreeBSD 13.0, I > > started noticing a problem when exporting routes to the KRT. > Unfortunately, there were a number of issues in 13.0 w.r.t rtsock handling. > I’d suggest considering updating to 13-STABLE. > > > > My logs were getting flooded with "kernel: gw sdl_len too small". This > > message comes from cleanup_xaddrs_gateway() in sys/net/rtsock.c of > > releng/13.0, so I checked with "route monitor" and noticed that the > > blackhole routes and one interface route were the ones causing the > message. > > > > got message of size 192 on Sat Aug 28 15:57:32 2021 > > RTM_ADD: Add Route: len 192, pid: 2293, seq 3, errno 22, > > flags:<UP,BLACKHOLE,PROTO1> > > locks: inits: > > sockaddrs: <DST,GATEWAY,NETMASK> > > 10.0.0.0 link#4 255.0.0.0 > > > > got message of size 192 on Sat Aug 28 15:57:32 2021 > > RTM_ADD: Add Route: len 192, pid: 2293, seq 4, errno 22, > flags:<UP,PROTO1> > > locks: inits: > > sockaddrs: <DST,GATEWAY,NETMASK> > > 10.42.10.0 link#5 255.255.255.0 > > > > In BIRD they look the same as before the upgrade: > > > > bird> show route all 10.0.0.0/8 > > Table master4: > > 10.0.0.0/8 blackhole [s_null_4 2021-08-28 15:57:32] ! (200) > > Type: static univ > > bird> show route all 10.42.10.0/24 > > Table master4: > > 10.42.10.0/24 unicast [direct1 2021-08-28 16:07:59] ! (240) > > dev vlan10 > > Type: device univ > > > > > > I then decided to try manually adding a blackhole route using "route add > > -net 10.0.0.0/8 -blackhole -proto1 -nostatic", to get as close to what > > BIRD was trying to add and noticed that BIRD had a gateway, but "route > > add" didn't have one. > > > > got message of size 184 on Sat Aug 28 16:05:43 2021 > > RTM_ADD: Add Route: len 184, pid: 2766, seq 1, errno 0, > > flags:<UP,GATEWAY,DONE,BLACKHOLE,PROTO1> > > locks: inits: > > sockaddrs: <DST,NETMASK> > > 10.0.0.0 255.0.0.0 > > > > I tried commenting out line 324 in sysdep/bsd/krt-sock.c of v2.0.8 to > > see if that could fix it and bird was able to insert the blackhole route > > (can be seen below), but then bird started dying a couple seconds after > > starting up, with no error showing up on the logs. > > > > got message of size 184 on Sat Aug 28 15:27:33 2021 > > RTM_ADD: Add Route: len 184, pid: 46425, seq 2, errno 22, > flags:<UP,PROTO1> > > locks: inits: > > sockaddrs: <DST,NETMASK> > > 10.42.10.0 255.255.255.0 > > > > got message of size 184 on Sat Aug 28 15:27:33 2021 > > RTM_ADD: Add Route: len 184, pid: 46425, seq 3, errno 0, > > flags:<UP,GATEWAY,DONE,BLACKHOLE,PROTO1> > > locks: inits: > > sockaddrs: <DST,NETMASK> > > 10.0.0.0 255.0.0.0 > > > > > > At this point, I ran out of ideas on what else to try. This is in a > > testing environment, so I can easily try things out or provide extra > > information. > > > > Thank you, > > Luiz > > > > > > > > >
