[Bug 278394] Reproducible kernel panic related to IPv4 routes populated by bird2 (BGP)

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 17 Apr 2024 03:17:40 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278394

--- Comment #10 from Gregory Neil Shapiro <gshapiro@FreeBSD.org> ---
I got both routing algorithms working by loading them in loader.conf.  I also
bumped kern.kstack_pages to 8.  No impact -- still crashes every time I try to
export the BGP routing table from bird2 to the kernel (gets around half way
through before it crashes).  No backtrace as usual, but I'm pretty sure I'm
using a debug kernel.  From the core.txt output:

kernel config

options CONFIG_AUTOGENERATED
ident   GENERIC
machine amd64
cpu     HAMMER
makeoptions     WITH_CTF=1
makeoptions     DEBUG=-g

(note the DEBUG=-g)

and

/boot/kernel/kernel: ELF 64-bit LSB executable, x86-64, version 1 (FreeBSD),
dynamically linked, interpreter /red/herring,
BuildID[sha1]=7b7d4b244902bd1c795f110c11cbabe50c40783e, not stripped

Note the "not stripped".

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