On Sun, Jul 13, 2014 at 03:06:55PM +0200, Juliusz Chroboczek wrote: > > Since this runs inside tmux, the last 2000 lines of log should still be > > there if babeld ever crashes again. > > I doubt it will do you much good in case of a crash. It would be really > helpful to get a backtrace (ulimit -c somethingreasonable).
Unfortunately, core dumps are not enabled by default on OpenWRT, and I really don't want to reflash it remotely. Anyway, here are babeld famous last words: Checking neighbours. Sending self update to tap-babel. Sending update to tap-babel for 10.0.0.0/8. Sending update to tap-babel for 172.22.0.0/15. Sending update to tap-babel for 172.23.184.64/26. Sending update to tap-babel for 172.31.0.0/16. kernel_route: flush 172.23.184.216/125 metric 0 dev 54 nexthop 172.23.184.217 Netlink message: (ACK) kernel_route: add 172.23.184.216/125 metric 65535 dev 54 nexthop 172.23.184.217 Netlink message: (ACK) Segmentation fault The subnet is actually 172.23.184.216/29, not /125, but babeld seems to be using IPv4-mapped addresses. The RIB just before the segfault looked like this: http://paste.debian.net/hidden/77ec723f/ Looking at the RIB, I'm not sure why babeld decided to change the kernel route to unreachable. Please note that the originator of this route (the "fe80::23:184:217" neighbour) has a very spotty network connectivity. The command line used to run babeld: babeld -I /var/run/babeld.pid -g 33123 -C 'interface tap-babel split-horizon false max-rtt-penalty 250 rtt-max 500' -C 'interface tun-mejis wired true rxcost 45 enable-timestamps true' -C 'redistribute ip 172.23.184.0/24 le 29 proto 2 allow' -C ' redistribute ip 10.0.0.0/8 eq 8 metric 255' -C 'redistribute ip 172.22.0.0/15 eq 15 metric 128' -C ' redistribute ip 172.31.0.0/16 eq 16 metric 255' -C ' redistribute local deny' -C ' in ip 172.22.0.0/15 allow' -C ' in deny' -d 3 Any idea? Thanks, Baptiste
pgpmLuy0eKGrN.pgp
Description: PGP signature
_______________________________________________ Babel-users mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/babel-users
