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=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT autolearn=ham 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 D48BAC43441 for ; Mon, 26 Nov 2018 06:58:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8796320672 for ; Mon, 26 Nov 2018 06:58:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="r+tLXO9x" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8796320672 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726325AbeKZRwG (ORCPT ); Mon, 26 Nov 2018 12:52:06 -0500 Received: from mail-pf1-f169.google.com ([209.85.210.169]:34833 "EHLO mail-pf1-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726147AbeKZRwG (ORCPT ); Mon, 26 Nov 2018 12:52:06 -0500 Received: by mail-pf1-f169.google.com with SMTP id z9so6108627pfi.2; Sun, 25 Nov 2018 22:58:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=cMSvfZ8r8zhMKFg6SzgErJzy7EJ2SJ5yF8QA8WrTDpk=; b=r+tLXO9xuNrSJWXWll+UQEtTWZO7Cg6CxspQegmNMYfcbSqHylW7SFD70yI79pzR5n 4u5U1yb2TIiwZnwLqTb9hoLBWdvK1A3KnktDRpskcRu0cVpkfgSMIfz+XB0m88vmYq7n Q4WJwQ1Ry3GBuRR5607sNUg15/WOsCp7PCBtrSY6VCBxG6j+PHhMw0FWFh+9COkxfWKO iXMqerIC7AgAG5vNc5bFKAnME49shctXUnXdoqI5QmhV3hIiieJ1QDlVqJafiHUKwiWG rgKp3jl4dFSxBRbeNTbfVrEvyMjvxcl0JKFl8CuP4Q037sszUhjFdGeZ7joRzTvlqHf5 me6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to:user-agent; bh=cMSvfZ8r8zhMKFg6SzgErJzy7EJ2SJ5yF8QA8WrTDpk=; b=KswgUQ5Tcz0WMIOczkSWC/2jjK7e31eCTEj4pK+uFcfl3jb4YvzU8oCaJ9Y0F2BAZp YysOeeiaSP/F99PXoJ1DVtIqAdMtSe2dFurhAWA1IrF8QdeslyydvYy9ICIQU8Bfr13/ dJP4DDAmjL3zFAfuchBLWKA7n+24WxKA8NZ4+SqiBaboMe1BTx0zdwPB9G/FpM2g6wx1 tkK/Nn0uXkJor3N8O46ty4VoP3pNonnogkpwA2DiqPNhi9liIvPQfYMJ4DBfqAR1AoJy 3QbikA9UgFz8HAqw7A8sMnzSIf23QH7oKAx9y/HpNL6xw2sIpbqVMzkxM1E0OUe5rwLo +bzw== X-Gm-Message-State: AGRZ1gL6HYcrs6vKRfjqxLJVaqXj2VFvCH8fNPp2wR9ZiTj+lpnVVYOy Ot61/RkRQZotwD30agvu9M5jcv8UqdI= X-Google-Smtp-Source: AJdET5cwLhbQFo/LBIrsGq4bnghXKDCrdWA+mm4Js28PhttDhtN45yKdSu5SVyYPawBrhD2wAu81Jw== X-Received: by 2002:a62:8893:: with SMTP id l141mr26211560pfd.1.1543215537242; Sun, 25 Nov 2018 22:58:57 -0800 (PST) Received: from leo.usersys.redhat.com ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id d3sm85688780pgl.64.2018.11.25.22.58.54 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 25 Nov 2018 22:58:56 -0800 (PST) Date: Mon, 26 Nov 2018 14:58:46 +0800 From: Hangbin Liu To: Sukumar Gopalakrishnan Cc: davem@davemloft.net, karn@ka9q.net, kuznet@ms2.inr.ac.ru, yoshfuji@linux-ipv6.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: hard-coded limit on unresolved multicast route cache in ipv4/ipmr.c causes slow, unreliable creation of multicast routes on busy networks Message-ID: <20181126065845.GS24677@leo.usersys.redhat.com> References: <147f730b-8cbf-b76d-f693-b3fdaf72a89c@ka9q.net> <20180721.220309.1193443933653884021.davem@davemloft.net> <20181120092321.GR24677@leo.usersys.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.7.0 (2016-08-17) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 26, 2018 at 10:44:49AM +0530, Sukumar Gopalakrishnan wrote: > Hi, > >  There is a patch to make this queue len configurable. Is below mentioned going > to be applied ? > > http://lkml.iu.edu/hypermail/linux/kernel/1810.3/02344.html Thanks for this reminder, I saw Stephen has gave some comments. But I'm not sure which patch David would apply. Thanks Hangbin