[Bug 242784] arp: segfault on service netif restart

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242784

Eugene Grosbein <eugen at freebsd.org> changed:

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                 CC|                            |eugen at freebsd.org

--- Comment #5 from Eugene Grosbein <eugen at freebsd.org> ---
> Dec 29 23:40:54 <kern.info> kernel: pid 43492 (arp), jid 0, uid 0: exited on signal 11 (core dumped)

You have coredump, so this should be easy to fix if you rebuild /usr/sbin/arp
binary with debugging symbols. Provided you have sources installed:

cd /usr/src/usr.sbin/arp && make clean obj depend && make "DEBUG_FLAGS=-O0 -g"
&& install /usr/obj/usr/src/usr.sbin/arp/arp /usr/sbin/

Then reproduce the problem to make new coredump and post backtrace:

gdb /usr/sbin/arp arp.core
backtrace

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