From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92DFFC2D0A8 for ; Mon, 28 Sep 2020 05:46:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5B0482068E for ; Mon, 28 Sep 2020 05:46:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726595AbgI1FqV (ORCPT ); Mon, 28 Sep 2020 01:46:21 -0400 Received: from wforward4-smtp.messagingengine.com ([64.147.123.34]:47157 "EHLO wforward4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725290AbgI1FqV (ORCPT ); Mon, 28 Sep 2020 01:46:21 -0400 X-Greylist: delayed 422 seconds by postgrey-1.27 at vger.kernel.org; Mon, 28 Sep 2020 01:46:20 EDT Received: from compute7.internal (compute7.nyi.internal [10.202.2.47]) by mailforward.west.internal (Postfix) with ESMTP id A0544779; Mon, 28 Sep 2020 01:39:17 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute7.internal (MEProxy); Mon, 28 Sep 2020 01:39:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm3; bh=2c+Qmjr9/O1r/GDbWbfvl1NrCXpbOipqyUQetkNvP 7s=; b=Oiz6WH3LeF0W4pNbXUhCGuciTDsuav5tdOx7p7XF+VmaYcCq32H8L/i3a G5wd1Yad+Uq1Vm2IqYMfq2ZjGX/k8eppAgfFyDSg72M/oDMLcTabbIaZvF5p2Kc/ fSRPYpd9UGQLuu9BcDSmbL++ApDY9sWpKxi/o6c5qyGSyT/reOVEJOHW4OpWGnoZ Ja6KJaMXfoW2gP1QCw6+TVYxJBLT+wQW4D2wSstZtey8HwK6JqHprUqjvRclMoRN DtOHDInqoO9LVuPYUWzn+jYP/uGumaPTV6910CvFK4RJUApArww3K+NYD+Xv8At9 eFLL2hpaVUIZ5xGZqC8Aq09/9DiPw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrvdehgdelkecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffuohhfffgjkfgfgggtgfesthekredttderjeenucfhrhhomhepgghinhgt vghnthcuuegvrhhnrghtuceosggvrhhnrghtseguvggsihgrnhdrohhrgheqnecuggftrf grthhtvghrnhepvdevtddtueevfeeuheejtdfftefgffdvleejudeuheegteekvdffteev vdekjefhnecukfhppeekvddruddvgedrvddukedrgeehnecuvehluhhsthgvrhfuihiivg eptdenucfrrghrrghmpehmrghilhhfrhhomhepsggvrhhnrghtseguvggsihgrnhdrohhr gh X-ME-Proxy: Received: from guybrush.luffy.cx (lfbn-idf1-1-134-45.w82-124.abo.wanadoo.fr [82.124.218.45]) by mail.messagingengine.com (Postfix) with ESMTPA id 9B25A328005E; Mon, 28 Sep 2020 01:39:15 -0400 (EDT) Received: by guybrush.luffy.cx (Postfix, from userid 1000) id 820EA1FE67; Mon, 28 Sep 2020 07:39:13 +0200 (CEST) From: Vincent Bernat To: David Ahern Cc: Baptiste Jonglez , Alarig Le Lay , netdev@vger.kernel.org, jack@basilfillan.uk, Oliver Subject: Re: IPv6 regression introduced by commit 3b6761d18bc11f2af2a6fc494e9026d39593f22c Organization: Debian References: <20200305081747.tullbdlj66yf3w2w@mew.swordarmor.fr> <20200927153552.GA471334@fedic> <20200927161031.GB471334@fedic> <66345b05-7864-ced2-7f3c-493260be39f7@gmail.com> Date: Mon, 28 Sep 2020 07:39:13 +0200 In-Reply-To: <66345b05-7864-ced2-7f3c-493260be39f7@gmail.com> (David Ahern's message of "Sun, 27 Sep 2020 20:38:28 -0700") Message-ID: <87wo0e8npa.fsf@debian.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org ❦ 27 septembre 2020 20:38 -07, David Ahern: > fib_rt_alloc is incremented by calls to ip6_dst_alloc. Each of your > 9,999 pings is to a unique address and hence causes a dst to be > allocated and the counter to be incremented. It is never decremented. > That is standard operating procedure. At some point, only PMTU exceptions would create a dst entry. -- Program defensively. - The Elements of Programming Style (Kernighan & Plauger)