Bug 172880
| Summary: | lldp (openlldp) triggers failures when the system has carp interfaces. | ||
|---|---|---|---|
| Product: | Base System | Reporter: | Andre Gustavo N. Lopes <andre> |
| Component: | kern | Assignee: | freebsd-bugs (Nobody) <bugs> |
| Status: | Open --- | ||
| Severity: | Affects Only Me | CC: | emaste |
| Priority: | Normal | ||
| Version: | 8.3-STABLE | ||
| Hardware: | Any | ||
| OS: | Any | ||
For bugs matching the following conditions: - Status == In Progress - Assignee == "bugs@FreeBSD.org" - Last Modified Year <= 2017 Do - Set Status to "Open" |
It looks like the lldp protocol (openlldp) triggers the below error when the system has a carp interface: .. carp_looutput: af=1 unexpected carp_looutput: af=1 unexpected carp_looutput: af=1 unexpected .. Investigating a little bit I've found this in /usr/src/sys/net/netinet/ip_carp.c: carp_looutput(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst, struct route *ro) { .. #if 1 /* XXX */ switch (dst->sa_family) { case AF_INET: case AF_INET6: case AF_IPX: case AF_APPLETALK: break; default: printf("carp_looutput: af=%d unexpected\n", dst->sa_family); m_freem(m); return (EAFNOSUPPORT); } .. } It looks like the switch (dst->sa_family) is returning 1 (dmesg log says: carp_looutput: af=1 unexpected). I thought I could just ignore this (and comment the printf out, but after some hours lldp consumes a bunch of swap and eventually dies: .. swap_pager_getswapspace(2): failed swap_pager_getswapspace(16): failed pid 2628 (lldpd), uid 0, was killed: out of swap space I wonder if ip_carp.c, when checking the address_family was not supposed to accomodate the lldp packages. How-To-Repeat: 1- Create a carp interface, no peer required, any ip address 2- Install and install openlldp 3- Follow up dmesg and logs