[Bug 256439] if_bridge(4): Kernel panic on FreeBSD 13.0-RELEASE: bridge_rthash

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 10 Jun 2021 12:37:39 UTC

Mark Johnston <markj@FreeBSD.org> changed:

           What    |Removed                     |Added
            Version|13.0-STABLE                 |13.0-RELEASE

--- Comment #23 from Mark Johnston <markj@FreeBSD.org> ---
(In reply to crypt47 from comment #18)
#GP is general protection fault in Intel terminology.

All of the stack traces go through icmp_error().  ip_output() is transmitting a
valid-looking mbuf, but when control flow reaches bridge_transmit(), we have a
different, trashed mbuf.  I'd guess that the problem is in a packet filter, it
seems you have pf and ipfw both loaded.

There's a large diff between 12.2 and 13.0 in that code.  Would you be willing
to share your rulesets somehow?

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