From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f178.google.com (mail-wi0-f178.google.com [209.85.212.178]) by kanga.kvack.org (Postfix) with ESMTP id D94816B0255 for ; Mon, 27 Jul 2015 11:41:50 -0400 (EDT) Received: by wibxm9 with SMTP id xm9so118522563wib.0 for ; Mon, 27 Jul 2015 08:41:50 -0700 (PDT) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id qc8si22087091wjc.78.2015.07.27.08.41.48 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 27 Jul 2015 08:41:49 -0700 (PDT) Date: Mon, 27 Jul 2015 16:41:46 +0100 From: Mel Gorman Subject: Re: vmemmap_verify() BUGs during memory hotplug (4.2-rc1 regression) Message-ID: <20150727154146.GP2561@suse.de> References: <55B64F1D.8090807@citrix.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <55B64F1D.8090807@citrix.com> Sender: owner-linux-mm@kvack.org List-ID: To: David Vrabel Cc: "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" On Mon, Jul 27, 2015 at 04:32:45PM +0100, David Vrabel wrote: > Mel, > > As of commit 8a942fdea560d4ac0e9d9fabcd5201ad20e0c382 (mm: meminit: make > __early_pfn_to_nid SMP-safe and introduce meminit_pfn_in_nid) > vmemmap_verify() will BUG_ON() during memory hotplug because of its use > of early_pfn_to_nid(). Previously, it would have reported bogus (or > failed to report valid) warnings. > Please test "mm, meminit: Allow early_pfn_to_nid to be used during runtime" -- Mel Gorman SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org