From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_NEOMUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AF315C4360F for ; Thu, 4 Apr 2019 13:08:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6E9142075E for ; Thu, 4 Apr 2019 13:08:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=shutemov-name.20150623.gappssmtp.com header.i=@shutemov-name.20150623.gappssmtp.com header.b="gH2HKKrq" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727051AbfDDNIp (ORCPT ); Thu, 4 Apr 2019 09:08:45 -0400 Received: from mail-lf1-f68.google.com ([209.85.167.68]:44089 "EHLO mail-lf1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725914AbfDDNIo (ORCPT ); Thu, 4 Apr 2019 09:08:44 -0400 Received: by mail-lf1-f68.google.com with SMTP id v71so1715532lfa.11 for ; Thu, 04 Apr 2019 06:08:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=shutemov-name.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=ydhQYDsYO5blITLWkKkMOKoBtLuqbWY/Tzn56seZhUY=; b=gH2HKKrq1I97KbmXoHT0RPv9oGKzcranbkpFUNclk2IQ/PlMg+i+bBHEhKoYTJXg4e LtoEjliHav/Yfdhpq1UclvTyx4s8eb3Dnx63eGac0SrVNZ930iHOldoOoYvwMld/TWrO 1wADWyFBeJ7EmzZlulI+klB53ianLFmNr8Y+DXSCqjyLWSp3oank3TR+VTki5vnNNKUS TvBQPMbhiWn/99s0PdvOiuUnfeIPzy639yCVMFKMb1sPm+avXRlvtTlo4ZHWx/q9d/Gi H92iFBioHoQJuSTW5sPfJwpDnPV1tFj+tsZZoE1zhYEJVhfxwrq3185bw/gPAF7l2ILZ PhfA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=ydhQYDsYO5blITLWkKkMOKoBtLuqbWY/Tzn56seZhUY=; b=GeTOOKwWHJktGF5oadKk4HJEnfB6LRCTGHRadlzqoaJDfETQS1pmJYpXcolsTW5wY0 nFuuRwcrcdiLtc0/coR8Rbn5QfW5FqJoLY8rAq0U3YU6SU33DuB281uk0VzWhgeRL2/m bWh8Nw9VF3NmO6Ymfmu15SVJRegcCl4bxNM5S64P1n45o8qqW/7kxj93pjvurNVfxZrV EDVclEw3RU1hSdi7rVgCyR1M/SDMZQX3Nvh9JXCkZKmrSYG960H04WUqaA9m0zh5LEZl hq/h0YFNX7fpXfpLKDMwDTEWAB4Ki9blrchquWnti2ZpjfnjlSH8Kirh03FxuEDhmRgg GEQQ== X-Gm-Message-State: APjAAAVsZqxahjJkbwx5DY03Xxb3USQ/uZ9C57iBRmS3qIVmAqEFcMRE j+Zdp/EKKG7O45z0h9/UuCJKUMzw7/QdEQ== X-Google-Smtp-Source: APXvYqzAwanZ+nskhouSYnB3oZZUeZzTzBAZAbOnXlbYnKQKzGspAQ0VLl1GDm/+7D/PYNzC/4Gt0g== X-Received: by 2002:a19:5201:: with SMTP id m1mr3222474lfb.68.1554383322830; Thu, 04 Apr 2019 06:08:42 -0700 (PDT) Received: from kshutemo-mobl1.localdomain ([178.127.198.154]) by smtp.gmail.com with ESMTPSA id v26sm3970728lja.60.2019.04.04.06.08.41 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 04 Apr 2019 06:08:41 -0700 (PDT) Received: by kshutemo-mobl1.localdomain (Postfix, from userid 1000) id C004C30039B; Thu, 4 Apr 2019 16:08:39 +0300 (+03) Date: Thu, 4 Apr 2019 16:08:39 +0300 From: "Kirill A. Shutemov" To: Jan Kara Cc: bugzilla-daemon@bugzilla.kernel.org, linux-ext4@vger.kernel.org, linux-mm@kvack.org Subject: Re: [Bug 203107] New: Bad page map in process during boot Message-ID: <20190404130839.5tkpwihuct4mex32@kshutemo-mobl1> References: <20190402101613.GF12133@quack2.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190402101613.GF12133@quack2.suse.cz> User-Agent: NeoMutt/20180716 Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Tue, Apr 02, 2019 at 12:16:13PM +0200, Jan Kara wrote: > Switching to email... > > On Fri 29-03-19 20:46:22, bugzilla-daemon@bugzilla.kernel.org wrote: > > https://bugzilla.kernel.org/show_bug.cgi?id=203107 > > > > Bug ID: 203107 > > Summary: Bad page map in process during boot > > Product: File System > > Version: 2.5 > > Kernel Version: 5.0.5 > > Hardware: All > > OS: Linux > > Tree: Mainline > > Status: NEW > > Severity: normal > > Priority: P1 > > Component: ext4 > > Assignee: fs_ext4@kernel-bugs.osdl.org > > Reporter: echto1@gmail.com > > Regression: No > > > > Error occurs randomly at boot after upgrading kernel from 5.0.0 to 5.0.4. > > > > https://justpaste.it/387uf > > I don't think this is an ext4 error. Sure this is an error in file mapping > of libblkid.so.1.1.0 (which is handled by ext4) but the filesystem has very > little to say wrt how or which PTEs are installed. And the problem is that > invalid PTE (dead000000000100) is present in page tables. So this looks > more like a problem in MM itself. Adding MM guys to CC. 0xdead000000000100 and 0xdead000000000200 are LIST_POISON1 and LIST_POISON2 repectively. Have no idea how would they end up in page table. -- Kirill A. Shutemov