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=-2.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, 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 CD6F7C282CA for ; Wed, 13 Feb 2019 11:29:48 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9CCDE2073D for ; Wed, 13 Feb 2019 11:29:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ii7U0txt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9CCDE2073D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=techsingularity.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ed4B5ymtY/SwDa2YI8oweXqzMzdVlUnQYONR/2JfXy4=; b=ii7U0txtxH4q+2 TsNg3DYKp+wFtlr4WqB114bKd7ArF/F3/o7/er21p7NWeqVwZQOZMZ6zyiY6aro8hWdbrsaQaT/ig jijFffrREKdsUnublA8zXvPoT5IGAJDuXE7pX68rWjRok4/bAQKSX5IkFk29U1MWAxDzH52Igt5rZ 8hY4EvHYth+1V5c/Jl3r/uDyZkXNrczJRlXyBc6xJr6VYP66HAlAYH/fJIyWySDlZU3zvlJFQgZ3v tH5MStpgLVX972SyojFdlP4ICtaKRXF3esMF5ovbl/cbu8WjgId7fkeiOxyvJLcyAYJW5RG2hWBVl ThR7xuRUsaoKCcvEo2rg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gtsjZ-0005UI-9W; Wed, 13 Feb 2019 11:29:45 +0000 Received: from outbound-smtp12.blacknight.com ([46.22.139.17]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gtsjV-0005Tu-Qw for linux-arm-kernel@lists.infradead.org; Wed, 13 Feb 2019 11:29:43 +0000 Received: from mail.blacknight.com (pemlinmail05.blacknight.ie [81.17.254.26]) by outbound-smtp12.blacknight.com (Postfix) with ESMTPS id E6A3B1C2195 for ; Wed, 13 Feb 2019 11:29:39 +0000 (GMT) Received: (qmail 8247 invoked from network); 13 Feb 2019 11:29:39 -0000 Received: from unknown (HELO techsingularity.net) (mgorman@techsingularity.net@[37.228.225.79]) by 81.17.254.9 with ESMTPSA (AES256-SHA encrypted, authenticated); 13 Feb 2019 11:29:39 -0000 Date: Wed, 13 Feb 2019 11:29:38 +0000 From: Mel Gorman To: Will Deacon Subject: Re: 5.0-rc kernel hangs on early boot Message-ID: <20190213112938.GP9565@techsingularity.net> References: <20190213082134.GA21834@yury-thinkpad> <20190213111843.GA1912@brain-police> <20190213112141.GO9565@techsingularity.net> <20190213112520.GB1912@brain-police> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190213112520.GB1912@brain-police> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190213_032942_007048_18E1EEB0 X-CRM114-Status: GOOD ( 10.36 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrea Arcangeli , Yury Norov , Vlastimil Babka , Catalin Marinas , linux-kernel@vger.kernel.org, Michal Hocko , Zi Yan , David Rientjes , Andrew Morton , Linus Torvalds , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Feb 13, 2019 at 11:25:21AM +0000, Will Deacon wrote: > > Thanks Will. > > > > While I agree that going OOM early is a problem and would explain why > > the boosting logic was hit at all, it's still the case that the boosting > > should not divide by zero. Even if the booting is broken due to a lack > > of memory, I'd still not prefer to crash due to 1c30844d2dfe272d58c. > > Yup, sorry, our previous mails crossed paths. Your patch looks sensible in > its own right, I'm just left wondering why we're OOM so early during boot! > I completely agree that it's worth pinning down both issues. -- Mel Gorman SUSE Labs _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel