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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 E62EFC2D0C2 for ; Tue, 31 Dec 2019 12:59:14 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 879D6205ED for ; Tue, 31 Dec 2019 12:59:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="BR72JQHc" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 879D6205ED Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id E2D078E0005; Tue, 31 Dec 2019 07:59:12 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id DDEEB8E0003; Tue, 31 Dec 2019 07:59:12 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CF4E98E0005; Tue, 31 Dec 2019 07:59:12 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0204.hostedemail.com [216.40.44.204]) by kanga.kvack.org (Postfix) with ESMTP id B8A2C8E0003 for ; Tue, 31 Dec 2019 07:59:12 -0500 (EST) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with SMTP id 5FC34181AC9B6 for ; Tue, 31 Dec 2019 12:59:12 +0000 (UTC) X-FDA: 76325442144.08.sound22_161c8694f4a5d X-HE-Tag: sound22_161c8694f4a5d X-Filterd-Recvd-Size: 2105 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf03.hostedemail.com (Postfix) with ESMTP for ; Tue, 31 Dec 2019 12:59:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Type:MIME-Version:Message-ID: Subject:To:From:Date:Sender:Reply-To:Cc:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=jjIwlw+Ag6P/8YqmQwLGswD9wo5RQIXZ+jPv/s6bcJQ=; b=BR72JQHcMuxtsBv2RelAqWmwj/ AiuqoQwXjwQzRYQ9PvZV74bLyupbmEwRmIUY3DUhiHySn8edDHxNtwhjDokGltU/QInff7qqONSdJ 7lCB6jOExIsbytSdNvxqfAS62Azyr3LoKdWXtXUWDbynOBuAv5XsgIGzUQAZOJRVjcK/C5U2Te5J/ fwjyYA9U0KlARWWxGX4BlSlkoUGgx3vhYBgMImt/q1uqWp0ENsw7Ce6DHCUjafryAai3j66rA4SGd FEFx8N2vsDc+Fsdeh1auYNfKTfbAQVWKl5JCRcBYC/o71XPLNHKoeCESexuHyNwgFvV2/d3Die6E8 zCy6oHUA==; Received: from willy by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1imH76-0002sw-GG; Tue, 31 Dec 2019 12:59:08 +0000 Date: Tue, 31 Dec 2019 04:59:08 -0800 From: Matthew Wilcox To: lsf-pc@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: [LSF/MM TOPIC] Congestion Message-ID: <20191231125908.GD6788@bombadil.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: I don't want to present this topic; I merely noticed the problem. I nominate Jens Axboe and Michael Hocko as session leaders. See the thread here: https://lore.kernel.org/linux-mm/20190923111900.GH15392@bombadil.infradead.org/ Summary: Congestion is broken and has been for years, and everybody's system is sleeping waiting for congestion that will never clear. A good outcome for this meeting would be: - MM defines what information they want from the block stack. - Block stack commits to giving them that information.