[Bug 246951] carp(4): Active CARP member crashes: panic, trap_pfault, ip_input || ip_output when using ipSec, AES-NI (on Intel I350)

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=246951

--- Comment #16 from Mark Johnston <markj at FreeBSD.org> ---
(In reply to igor-fbsdbugs from comment #14)
Oops, I did not realize that there are multiple reporters.  I posted a patch
for HEAD here: https://reviews.freebsd.org/D25519 .  There is an analogous bug
in stable/11 and 12.  If forwarding is enabled (default in pfsense) and ipsec
is in use, then it is possible that this bug is responsible for the crashes I
was looking at in comment 1.

(In reply to Ryan Moeller from comment #15)
If you're able to use DTrace to track ifa refs, then you might try looking for
leaks as suggested in comment 10.  Your case sounds like a different bug
though.

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