Date: Mon, 15 Dec 2008 11:35:28 -0800 From: "Li, Qing" <qing.li@bluecoat.com> To: "Giorgos Keramidas" <keramida@ceid.upatras.gr>, "Qing Li" <qingli@freebsd.org> Cc: freebsd-net@freebsd.org, freebsd-current@freebsd.org Subject: RE: HEADSUP: arp-v2 has been committed Message-ID: <B583FBF374231F4A89607B4D08578A430295C9C0@bcs-mail03.internal.cacheflow.com> In-Reply-To: <873agpk11i.fsf@kobe.laptop> References: <200812150634.mBF6YDVC060565@freefall.freebsd.org> <873agpk11i.fsf@kobe.laptop>
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The increase in "Use" count is not a leak. Before the arp-v2 commit,=20 the counter increment occurs in the ARP entry for the gateway, but=20 "rt_gwroute" is no longer necessary and has been removed. The outgoing=20 interface is known from the default route entry, and because the gateway is on-link, an ARP search is made in that interface.=20 The side effect is the "Use" count is increased in the default route entry. You will also notice a similar behavior when you access=20 on-link hosts, i.e., the "Use" count for the interface route 192.169.1.0/24 will go up for every outgoing packet. -- Qing > -----Original Message----- > From: owner-freebsd-current@freebsd.org [mailto:owner-freebsd- > current@freebsd.org] On Behalf Of Giorgos Keramidas > Sent: Monday, December 15, 2008 5:42 AM > To: Qing Li > Cc: freebsd-net@freebsd.org; freebsd-current@freebsd.org > Subject: Re: HEADSUP: arp-v2 has been committed >=20 > On Mon, 15 Dec 2008 06:34:13 GMT, Qing Li <qingli@freebsd.org> wrote: > > Hi All, > > > > The arp-v2 changes have been committed into HEAD. > > Please report problems to me and Kip Macy. >=20 > Thanks! I've just updated my installation here to the new kernel and > userland and it seems to work fine so far. At least, ARP and IPv4 > seems > to work without any noticeable problem the last few hours :-) >=20 > I have one minor question though (still reading through the diff, so I > am not sure if this is `normal'). >=20 > The new netstat output includes a `Use' column that seems to be ever > increasing: >=20 > : % netstat -rn -f inet > : Routing tables > : > : Internet: > : Destination Gateway Flags Refs Use Netif > Expire > : default 192.168.1.1 UGS 0 5338 re0 > : 127.0.0.1 link#4 UH 0 1292 lo0 > : 192.168.1.0/24 link#2 U 0 2 re0 > : > : % netstat -rn -f inet > : Routing tables > : > : Internet: > : Destination Gateway Flags Refs Use Netif > Expire > : default 192.168.1.1 UGS 0 5365 re0 > : 127.0.0.1 link#4 UH 0 1337 lo0 > : 192.168.1.0/24 link#2 U 0 2 re0 > : > : % netstat -rn -f inet > : Routing tables > : > : Internet: > : Destination Gateway Flags Refs Use Netif > Expire > : default 192.168.1.1 UGS 0 5409 re0 > : 127.0.0.1 link#4 UH 0 1375 lo0 > : 192.168.1.0/24 link#2 U 0 2 re0 >=20 > Is this expected, or does it look like a leak? >=20 > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current- > unsubscribe@freebsd.org"
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