From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756123AbbCPTkr (ORCPT ); Mon, 16 Mar 2015 15:40:47 -0400 Received: from mx1.redhat.com ([209.132.183.28]:38139 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932070AbbCPTkp (ORCPT ); Mon, 16 Mar 2015 15:40:45 -0400 Message-ID: <550731AF.6080904@redhat.com> Date: Mon, 16 Mar 2015 19:40:31 +0000 From: Pedro Alves User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: Oleg Nesterov , Andy Lutomirski , Hugh Dickins , Linus Torvalds CC: Jan Kratochvil , Sergio Durigan Junior , GDB Patches , "linux-kernel@vger.kernel.org" Subject: Re: install_special_mapping && vm_pgoff (Was: vvar, gup && coredump) References: <878ufc9kau.fsf@redhat.com> <20150305154827.GA9441@host1.jankratochvil.net> <87zj7r5fpz.fsf@redhat.com> <20150305205744.GA13165@host1.jankratochvil.net> <20150311200052.GA22654@redhat.com> <20150312143438.GA4338@redhat.com> <20150312165423.GA10073@redhat.com> <20150312174653.GA13086@redhat.com> <20150316190154.GA18472@redhat.com> In-Reply-To: <20150316190154.GA18472@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Thanks for looking over all this, guys. Really appreciated. On 03/16/2015 07:01 PM, Oleg Nesterov wrote: > is wrong. To verify, I changed show_map_vma() to expose pgoff even if !file, > but this test-case can show the problem too: Might be good to add tests like this to selftests/ once all this is sorted. Pedro Alves