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Date:      Wed, 17 Apr 2024 21:02:55 +0000
From:      bugzilla-noreply@freebsd.org
To:        net@FreeBSD.org
Subject:   [Bug 278394] Reproducible kernel panic related to IPv4 routes populated by bird2 (BGP)
Message-ID:  <bug-278394-7501-dg9F4BB84L@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-278394-7501@https.bugs.freebsd.org/bugzilla/>
References:  <bug-278394-7501@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D278394

Mark Johnston <markj@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|New                         |Open

--- Comment #16 from Mark Johnston <markj@FreeBSD.org> ---
So we have a packet loop:

ip_output() at ip_output+0xce7/frame 0xfffffe00517c4610
vxlan_transmit() at vxlan_transmit+0x591/frame 0xfffffe00517c4720
ether_output_frame() at ether_output_frame+0xf9/frame 0xfffffe00517c4750
ether_output() at ether_output+0x6fb/frame 0xfffffe00517c47e0
ip_output() at ip_output+0x1355/frame 0xfffffe00517c48e0
vxlan_transmit() at vxlan_transmit+0x591/frame 0xfffffe00517c49f0
ether_output_frame() at ether_output_frame+0xf9/frame 0xfffffe00517c4a20
ether_output() at ether_output+0x6fb/frame 0xfffffe00517c4ab0
ip_output() at ip_output+0x1355/frame 0xfffffe00517c4bb0
...

I wonder if vxlan_transmit() should perhaps be calling
if_tunnel_check_nesting() somewhere?

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