[Bug 276870] mbuf cluster leak with on pf+bird2 bgp routers

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 09 Feb 2024 19:43:52 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=276870

Mark Johnston <markj@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |glebius@FreeBSD.org,
                   |                            |markj@FreeBSD.org
             Status|New                         |Open

--- Comment #2 from Mark Johnston <markj@FreeBSD.org> ---
Gleb, based on the report this sounds more like a leak in the routing socket
code, no?  There's no mention of pf except in the bug title.

> I at one point tried adding the missing kernel export filter (as to at least silence the noisy warnings in the logs), and imagine my surprise when the mbuf cluster leak stopped.

I'm not too familiar with how this works - does this basically install a bunch
of routes in the kernel, so most likely you're hitting an mbuf leak in the
routing socket code?  This may be fixed in 14.0 by virtue of having
reimplemented parts of that interface using netlink.

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