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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 59F35C433E1 for ; Wed, 26 Aug 2020 17:30:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 294A82078B for ; Wed, 26 Aug 2020 17:30:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727042AbgHZRaV (ORCPT ); Wed, 26 Aug 2020 13:30:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:58212 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726767AbgHZRaP (ORCPT ); Wed, 26 Aug 2020 13:30:15 -0400 Received: from gaia (unknown [46.69.195.127]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 665D72078B; Wed, 26 Aug 2020 17:30:13 +0000 (UTC) Date: Wed, 26 Aug 2020 18:30:10 +0100 From: Catalin Marinas To: Qian Cai Cc: Rong Chen , Linus Torvalds , Matthew Wilcox , Michal Hocko , Andrew Morton , LKML , lkp@lists.01.org Subject: Re: [mm] c566586818: BUG:kernel_hang_in_early-boot_stage,last_printk:Probing_EDD(edd=off_to_disable)...ok Message-ID: <20200826173010.GD24545@gaia> References: <34a960a0-ec0b-3c26-ec73-e415a8197757@intel.com> <9D9FBD8D-DF19-4DA9-B0B1-260BA72D3712@lca.pw> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9D9FBD8D-DF19-4DA9-B0B1-260BA72D3712@lca.pw> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 25, 2020 at 11:02:40PM -0400, Qian Cai wrote: > On Aug 25, 2020, at 8:44 PM, Rong Chen wrote: > > I rebuilt the kernel on commit c566586818 but the error changed to > > "RIP: 0010:clear_page_orig+0x12/0x40", and the error can be > > reproduced on parent commit: > > Catalin, any thought? Sounds like those early kmemleak allocations > cause some sort of memory corruption? I can't immediately see how but Rong implies that the error also happens on the parent commit. Does it mean the bisection isn't entirely right? -- Catalin From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============4526294324312461897==" MIME-Version: 1.0 From: Catalin Marinas To: lkp@lists.01.org Subject: Re: [mm] c566586818: BUG:kernel_hang_in_early-boot_stage, last_printk:Probing_EDD(edd=off_to_disable)...ok Date: Wed, 26 Aug 2020 18:30:10 +0100 Message-ID: <20200826173010.GD24545@gaia> In-Reply-To: <9D9FBD8D-DF19-4DA9-B0B1-260BA72D3712@lca.pw> List-Id: --===============4526294324312461897== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On Tue, Aug 25, 2020 at 11:02:40PM -0400, Qian Cai wrote: > On Aug 25, 2020, at 8:44 PM, Rong Chen wrote: > > I rebuilt the kernel on commit c566586818 but the error changed to > > "RIP: 0010:clear_page_orig+0x12/0x40", and the error can be > > reproduced on parent commit: > = > Catalin, any thought? Sounds like those early kmemleak allocations > cause some sort of memory corruption? I can't immediately see how but Rong implies that the error also happens on the parent commit. Does it mean the bisection isn't entirely right? -- = Catalin --===============4526294324312461897==--