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From: "Li, Qing" <qing.li@bluecoat.com>
To: Ingo Flaschberger <if@freebsd.org>, Nikolay Denev <ndenev@gmail.com>
Thread-Topic: Routing enhancement - reduce routing table locking
Thread-Index: AQHL8zOHlmYR0xfOqkCNfuY6FBeddZRPutaAgAAORQD//5nHmg==
Date: Tue, 5 Apr 2011 15:38:17 +0000
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Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
Subject: RE: Routing enhancement - reduce routing table locking
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kern/155772 can be resolved using RADIX_MPATH.=0A=
=0A=
>=0A=
> regarding kern/155772:=0A=
> at stock 8.2 FreeBSD the system panics after ifconfig down / ifconfig up =
/=0A=
> ifconfig down with 1 route and 1 interface route (multipath).=0A=
>=0A=
   =0A=
  What's the exact step and a specific example that triggers a panic ?=0A=
=0A=
>=0A=
> Also there are problems with arp, due wrong multipath route selection=0A=
> (if the decision is already made that the route should go the direct way,=
=0A=
>  the route and not the interface route is choosen, depends on which route=
=0A=
>  was first in the tree).=0A=
>=0A=
=0A=
  I am not quite getting what you are saying about.  What do you mean when=
=0A=
  you say:" .. the route should go the direct way, the route and not the in=
terface route ..."=0A=
=0A=
  What is the "route" that "goes the direct way" ?=0A=
=0A=
>=0A=
> And finally, there are problems when adding / deleteing routes.=0A=
>=0A=
> example that does not work:=0A=
> ifconfig em0 192.168.0.1/24=0A=
> ifconfig em1 10.0.0.1/24=0A=
> route add 10.0.0.0/24 192.168.0.2=0A=
>=0A=
=0A=
  What doesn't work ?  The add or the delete operation?  =0A=
  I can add and delete the 10.0.0.0/24 route fine on my system.=0A=
=0A=
-- Qing=0A=
=0A=