[Bug 272908] [14.0 CURRENT] Kernel panic in the pf_find_state_all_exists()

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 08 Aug 2023 09:15:59 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272908

--- Comment #3 from Kristof Provost <kp@freebsd.org> ---
We're going to need to look at a core dump.

It's a very odd place for a panic, in the sense that nothing that's changed in
the past several years should affect that, and it's also a relatively
straightforward call. It really shouldn't be panicking there.
You're using a couple of new-ish features (dummynet, ethernet rules, openvpn
DCO), but they don't appear to be involved here, and you're also using them the
way pfsense does and I've not seen any similar reports there.

So, when this recurs please do the kgdb dance. We'll want the local variables
in pf_find_state_all_exists() and pf_find_state_all() for starters. Do keep
that core file around, because we're almost certainly going to want to poke it
more.

Also gather the full panic output, not just the backtrace, because it's not
quite clear to me if we're running into an assertion failure or a segmentation
fault or something else.

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