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Date:      Sat, 8 Oct 2011 12:25:35 +0200
From:      Vlad Galu <dudu@dudu.ro>
To:        "Li, Qing" <qing.li@bluecoat.com>
Cc:        "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org>, "liv3d@multiplay.co.uk" <liv3d@multiplay.co.uk>, Steven Hartland <killing@multiplay.co.uk>
Subject:   Re: serious packet routing issue causing ntpd high load?
Message-ID:  <CA%2BFTnKMVy_XoUE9-cJrLgx-NSLNAjysztDUPnEVx48ceeZH%2B9g@mail.gmail.com>
In-Reply-To: <B143A8975061C446AD5E29742C53172313BC17@PWSVL-EXCMBX-01.internal.cacheflow.com>
References:  <2740DA0E7C0F495BA00E6D4BC0FE8F37@multiplay.co.uk> <B143A8975061C446AD5E29742C53172313BC17@PWSVL-EXCMBX-01.internal.cacheflow.com>

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On Thu, Oct 6, 2011 at 1:32 AM, Li, Qing <qing.li@bluecoat.com> wrote:
[...]

I'm seeing this as well. It's very easy to reproduce:

1. Start listening for routing messages on a non-default FIB, e.g.
setfib 2 route monitor
2. Add any static route within that FIB.
3. The machine I run the test on is a heavy DNS client, it generates a
few dozen requests per second. The monitor process starts getting
RTM_MISS messages for each outgoing DNS request (the dst sockaddr is
the same as my first resolv.conf entry, seq is always 0).

-- 
Good, fast & cheap. Pick any two.



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