Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269889AbTGKKnc (ORCPT ); Fri, 11 Jul 2003 06:43:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269888AbTGKKnb (ORCPT ); Fri, 11 Jul 2003 06:43:31 -0400 Received: from yue.hongo.wide.ad.jp ([203.178.139.94]:43275 "EHLO yue.hongo.wide.ad.jp") by vger.kernel.org with ESMTP id S269887AbTGKKnN (ORCPT ); Fri, 11 Jul 2003 06:43:13 -0400 Date: Fri, 11 Jul 2003 19:59:17 +0900 (JST) Message-Id: <20030711.195917.89662318.yoshfuji@linux-ipv6.org> To: pekkas@netcore.fi Cc: mika.liljeberg@welho.com, andre@tomt.net, linux-kernel@vger.kernel.org, netdev@oss.sgi.com, yoshfuji@linux-ipv6.org Subject: Re: 2.4.21+ - IPv6 over IPv4 tunneling b0rked From: YOSHIFUJI Hideaki / =?iso-2022-jp?B?GyRCNUhGIzFRTEAbKEI=?= In-Reply-To: References: <20030711.194713.21412719.yoshfuji@linux-ipv6.org> Organization: USAGI Project X-URL: http://www.yoshifuji.org/%7Ehideaki/ X-Fingerprint: 90 22 65 EB 1E CF 3A D1 0B DF 80 D8 48 07 F8 94 E0 62 0E EA X-PGP-Key-URL: http://www.yoshifuji.org/%7Ehideaki/hideaki@yoshifuji.org.asc X-Face: "5$Al-.M>NJ%a'@hhZdQm:."qn~PA^gq4o*>iCFToq*bAi#4FRtx}enhuQKz7fNqQz\BYU] $~O_5m-9'}MIs`XGwIEscw;e5b>n"B_?j/AkL~i/MEaZBLP X-Mailer: Mew version 2.2 on Emacs 20.7 / Mule 4.1 (AOI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1439 Lines: 30 In article (at Fri, 11 Jul 2003 13:47:48 +0300 (EEST)), Pekka Savola says: > On Fri, 11 Jul 2003, YOSHIFUJI Hideaki / [iso-2022-jp] 吉藤英明 wrote: > > In article (at Fri, 11 Jul 2003 13:03:54 +0300 (EEST)), Pekka Savola says: > > > > > > We have but we cannot; it is refcnt'ed. > > > > > > I don't understand what you mean. Refcnt'ed by a userland process, so > > > that if you'd want the subnet-router anycast address, the whole time a > > > process (like radvd) should be running.. or what? > > > > Kernel has refcnt for subnet router anycast address. > > Ref/dereference from userspace is done via socket. > > You cannot derefer subnet router anycast address > > from userspace if the socket hasn't refered it. > > So? The point is that subnet router anycast address *could* be referenced > explicitly by a user-land socket (e.g. by radvd), not kernel at all. So, you cannot remove subnet router anycast address from kernel via this interface; kernel keeps one reference. (Hmm, I may misunderstand your mail...) --yoshfuji - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/