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Date:      Wed, 02 Sep 2015 22:35:29 -0400
From:      Emre Gundogan <emre@gundogan.us>
To:        freebsd-stable@freebsd.org
Subject:   net.bpf.zero_copy changed?
Message-ID:  <55E7B1F1.6010206@gundogan.us>

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Hello there. I have recently upgraded a machine (amd64) running
10.2-STABLE (r286771) to revision r287298. After that I could no longer
run tcpdump on the interfaces (fails with 'pcap_loop: BIOCROTZBUF:
Capabilities insufficient'), or neither could I use pflogd (eats cpu)
unless I set sysctl net.bpf.zero_copy=3D0. Had that set to '1' earlier,
and everything was fine. Something changed recently?

Thanks a lot,
Emre.




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