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Message-Id: <20110624.125406.600608999605842473.davem@davemloft.net> Date: Fri, 24 Jun 2011 12:54:06 -0700 (PDT) From: David Miller <davem@...emloft.net> To: shemminger@...tta.com Cc: herbert@...dor.hengli.com.au, netdev@...r.kernel.org Subject: Re: unintended ipv4 broadcast policy change From: Stephen Hemminger <shemminger@...tta.com> Date: Fri, 24 Jun 2011 10:01:21 -0700 > On Thu, 23 Jun 2011 14:08:21 -0700 (PDT) > David Miller <davem@...emloft.net> wrote: > >> From: Stephen Hemminger <shemminger@...tta.com> >> Date: Thu, 23 Jun 2011 17:01:37 -0400 >> >> > Standard Debian stable (Squeeze) installation. >> > $ dpkg -S /sbin/dhclient >> > isc-dhcp-client: /sbin/dhclient >> >> I bet what happens is that since it isn't reading from >> the AF_PACKET socket the receive queue just fills up >> and it's just in the kernel dropping packets in >> packet_spkt_rcv(). > > I don't think that is correct, just instrumented /proc/net/packet > to add receive queue length is stuck at 0. The packets are getting > dropped somewhere else. > > sk RefCnt Type Proto Iface R Rmem User Inode Count > ffff880327038000 3 10 0003 3 1 0 0 5881 0 They must be because this is capturing ETH_P_ALL with type SOCK_PACKET which means receive all packets unconditionally. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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