From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f70.google.com (mail-wm0-f70.google.com [74.125.82.70]) by kanga.kvack.org (Postfix) with ESMTP id 286AB280245 for ; Tue, 7 Nov 2017 03:40:50 -0500 (EST) Received: by mail-wm0-f70.google.com with SMTP id p75so555373wmg.2 for ; Tue, 07 Nov 2017 00:40:50 -0800 (PST) Received: from mail-sor-f41.google.com (mail-sor-f41.google.com. [209.85.220.41]) by mx.google.com with SMTPS id w51sor498542edd.54.2017.11.07.00.40.48 for (Google Transport Security); Tue, 07 Nov 2017 00:40:49 -0800 (PST) Date: Tue, 7 Nov 2017 11:40:45 +0300 From: "Kirill A. Shutemov" Subject: Re: UBSAN: Undefined behaviour in mm/sparse.c:81:17 Message-ID: <20171107084045.clzrn32pvsw4jthi@node.shutemov.name> References: <20171105125733.GA17434@Red> <20171106192759.GA29097@Red> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20171106192759.GA29097@Red> Sender: owner-linux-mm@kvack.org List-ID: To: Corentin Labbe Cc: linux-mm@kvack.org, kirill.shutemov@linux.intel.com, akpm@linux-foundation.org, mhocko@suse.com, vbabka@suse.cz, yasu.isimatu@gmail.com, richard.weiyang@gmail.com, gregkh@linuxfoundation.org, dave.hansen@linux.intel.com, linux-kernel@vger.kernel.org On Mon, Nov 06, 2017 at 08:27:59PM +0100, Corentin Labbe wrote: > Hello > > Disabling UBSAN, does not change anything (NULL ptr dereference). > Reverting 83e3c48729d9ebb7af5a31a504f3fd6aff0348c4 ("mm/sparsemem: Allocate mem_section at runtime for CONFIG_SPARSEMEM_EXTREME=y") made the boot progress further. > > Regards > > PS: I have added more "TO" people according to get_maintainer.pl mm/sparse.c > See http://lkml.kernel.org/r/20171107083337.89952-1-kirill.shutemov@linux.intel.com -- Kirill A. Shutemov -- 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