From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-2.v43.ch3.sourceforge.com ([172.29.43.192] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1Xtc6y-0000gn-2d for ltp-list@lists.sourceforge.net; Wed, 26 Nov 2014 12:54:24 +0000 Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 4FB18AB43 for ; Wed, 26 Nov 2014 12:54:16 +0000 (UTC) Date: Wed, 26 Nov 2014 13:53:36 +0100 From: Cyril Hrubis Message-ID: <20141126125336.GA1062@rei> References: <20141113071324.GA2809@localhost.localdomain> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20141113071324.GA2809@localhost.localdomain> Subject: Re: [LTP] NUMA system and get_a_numa_node() List-Id: Linux Test Project General Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-list-bounces@lists.sourceforge.net To: ltp-list@lists.sourceforge.net Hi! > We have a system which only has one NUMA node. When trying to run ksm02 > on it, becase the code calling get_allowed_nodes() with a count 2 as > below: > > 972 /* Warning: *DO NOT* use this function in child */ > 973 unsigned int get_a_numa_node(void (*cleanup_fn) (void)) > 974 { > 975 unsigned int nd1, nd2; > 976 int ret; > 977 > 978 ret = get_allowed_nodes(0, 2, &nd1, &nd2); > 979 switch (ret) { > 980 case 0: > 981 break; > 982 case -3: > 983 tst_brkm(TCONF, cleanup_fn, "requires a NUMA system."); > > it always failed with "requires a NUMA system.". > > I think a NUMA system may have only one node, right? If so, could we > change the count to 1? Hmm, are you sure that the testcases are actually applicable to a system with only one node? Because what the testcases do in the setup is to write 1 to /sys/kernel/mm/ksm/merge_across_nodes so I would expect that the test needs at least two nodes... -- Cyril Hrubis chrubis@suse.cz ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Ltp-list mailing list Ltp-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ltp-list