> On Feb 12, 2025, at 5:42 AM, A FreeBSD User <free...@walstatt-de.de> wrote: > > Hello, > > I'm running a small 14-STABLE (FreeBSD 14.2-STABLE #11 n270324-8d5d7e2ba3a6: > Thu Feb 6 > 16:56:03 CET 2025 amd64) based router appliance, running rtadvd(8). > > When stoppimg/starting mpd5 several times, changing the IPv6 prefix, I can > almost with a 100% > certainty reproduce such an error calling rtadvctl: > > [...] > root@gate:~ # rtadvctl -vv show > igb0: flags=<UP,CONFIGURED,PERSIST> status=<RA_SEND> mtu 1500 > DefaultLifetime: 30m > MinAdvInterval/MaxAdvInterval: 3m20s/10m > AdvLinkMTU: <none>, Flags: <none>, Preference: medium > ReachableTime: 0s, RetransTimer: 0s, CurHopLimit: 64 > AdvIfPrefixes: no > Next RA send: Tue Feb 11 22:36:21 2025 > Last RA send: Tue Feb 11 22:30:23 2025 > Prefixes (1): > Segmentation fault > [...] > > The indication of such a rtadvd failure within our network is no prefix > delegation any > more, several IPv6 on the (client) hosts's NICs are marked "deprecated" or > "detached", but > none usable. > > Checking on the gateway with the command shown above results in a > segmentation fault ... funny.
Do you get the core dump ? You can attach the core to gdb or lldb to easily figure out which line of source code is to be blamed. > > To solve this, we have to restart rtadvd. > > -- > > A FreeBSD user
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