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[2607:7c80:54:e::133]) by mx.google.com with ESMTPS id a63si8463390pfb.61.2019.02.13.02.32.45 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 13 Feb 2019 02:32:45 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of peterz@infradead.org designates 2607:7c80:54:e::133 as permitted sender) client-ip=2607:7c80:54:e::133; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20170209 header.b=c23Q5Ecp; spf=pass (google.com: best guess record for domain of peterz@infradead.org designates 2607:7c80:54:e::133 as permitted sender) smtp.mailfrom=peterz@infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=GdwIZ75A3b6/46RR+VJh6VgKTuumQfgVmxslX6VcVTE=; b=c23Q5EcpRVyBBdSUtk3FUPPsN 2vulLg55mfkyKpYAubwYA53+JnAZ0pLFuQ9PfGchMBDd7pqTjLuMOav/br0DpMmo8gF5G+elcn8Us LFxFGZ5ENk+c07rMcHVa7uSsghjSD6FviO//iI0n1utVtGTSZlmTGd13l2R3JjFA2k3rJSJmTi5hp Pym2LoAmTPFYtR5ulo3a6i/JQjxE0g31mu8BHsb9853zBz5igkiJOwt61Eewp1gppTsE8Vchp9Ssl tXxARSAQCeh98pf1FAvR0biIxXEU6T8eupdPN4NCwczUi2AkquknB9MiyeJqtzUxQ1CyGFuMay9z9 1t4j8xy1w==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1gtrqD-000809-Lp; Wed, 13 Feb 2019 10:32:33 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 0D06720D0C1E6; Wed, 13 Feb 2019 11:32:31 +0100 (CET) Date: Wed, 13 Feb 2019 11:32:31 +0100 From: Peter Zijlstra To: Michal Hocko Cc: linux-mm@kvack.org, Pingfan Liu , Dave Hansen , x86@kernel.org, Benjamin Herrenschmidt , Michael Ellerman , Tony Luck , linuxppc-dev@lists.ozlabs.org, linux-ia64@vger.kernel.org, LKML , Ingo Molnar , Michal Hocko Subject: Re: [PATCH v3 2/2] mm: be more verbose about zonelist initialization Message-ID: <20190213103231.GN32494@hirez.programming.kicks-ass.net> References: <20190212095343.23315-3-mhocko@kernel.org> <20190213094315.3504-1-mhocko@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190213094315.3504-1-mhocko@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) 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: On Wed, Feb 13, 2019 at 10:43:15AM +0100, Michal Hocko wrote: > @@ -5259,6 +5261,11 @@ static void build_zonelists(pg_data_t *pgdat) > > build_zonelists_in_node_order(pgdat, node_order, nr_nodes); > build_thisnode_zonelists(pgdat); > + > + pr_info("node[%d] zonelist: ", pgdat->node_id); > + for_each_zone_zonelist(zone, z, &pgdat->node_zonelists[ZONELIST_FALLBACK], MAX_NR_ZONES-1) > + pr_cont("%d:%s ", zone_to_nid(zone), zone->name); > + pr_cont("\n"); > } Have you ran this by the SGI and other stupid large machine vendors? Traditionally they tend to want to remove such things instead of adding them.