Date: Thu, 18 Apr 2024 02:19:49 +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-278394-7501-21B7QmM0ra@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/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278394 --- Comment #19 from Zhenlei Huang <zlei@FreeBSD.org> --- @Gregory bird2 learned more precise route for remote end of the vxlan tunnel from the vxlan interface. When that route was installed into kernel FIB then it ended up recursive encapsulation. Unfortunately vxlan(4) does not handle the recursive correctly and thus results in kernel stack overflow. As a workaround, use a dedicated fib for vxlan tunnel. Assume x.x.x.x is your tunnel remote end, and y.y.y.y is original route for x.x.x.x . ``` # sysctl -n net.fibs=2 1 -> 2 # route add x.x.x.x y.y.y.y -fib 1 # ifconfig vxlan0 tunnelfib 1 ``` Now happy starting bird2 :) -- You are receiving this mail because: You are the assignee for the bug. You are on the CC list for the bug.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-278394-7501-21B7QmM0ra>