Received: by 2002:a05:6a10:6006:0:0:0:0 with SMTP id w6csp287415pxa; Wed, 26 Aug 2020 10:34:19 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzSYfIOV4l5JgyJ1dHe90MOcVhJi3Axb1I+SHSuhD9jb8ufMiLE50qyFWG8RCWha8tkzj4T X-Received: by 2002:a05:6402:1f6:: with SMTP id i22mr15494309edy.374.1598463259116; Wed, 26 Aug 2020 10:34:19 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1598463259; cv=none; d=google.com; s=arc-20160816; b=u2aUj7mFplLMtpJ7QuOve3/g+pQ47+6LJNjgCpae7xV37UZq93Dx99utuIst2gTfdB 9K1nmQ4chgt4VY0EIRJZNOYyCCb1rLh0FCyUnKlg31U39UNzYe+9DE6O4Zxs9fRI8aFj 3RzUtQSsQ4YJ4mLud17gFVdY9g+hRD6VYoU4Hu1Ni6cYjsuKmJkfPXclw+VU8Tz+inpL gPkUrtcG3gVpWOJBrx3WLaAVRPrPJ0yAXv7RpNXz35flzaF2IUi6xcqkoOWwe7Cd/4yp uEdtD6curdmd60L6M+UI/MTIleWmu7K3/Y4i6CdQ+R8/YDDRUwNfPk/r5c4VlfM/oMig XzFg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=6CTzl7D/kFOUBEttRynAoPJELR3+SFy2jPZuORklNhU=; b=0h9UOSist8tHWW9qtxdyxQ3VI7EQsw5/kVy6ARK81DyXpx2SDJu5TaRS9j7d4n4mC5 SX6X42Ckj1xIpQvqAoxSqJwvd1RXUCOcJLtMcvBEELfvpm4zlJB4brGNVwPMM5CQaLe4 a/6SsQIw+6vTRyOm7wkBCHe18G0mtggZu0O3qwj6NnDd6+kpZM7UTsFq8Q22vRz6lDl+ T0qnydBZ38VVXFkhVTG0f9/P6RQ+A6v++LHpyvwV8nVH0WA/AEfwfDGHxuax9hNLhMn4 /R3jFbHqk3XhvVfE8KBpCHeGV0KK/jwe7LVor7EFvycUoXhUsZuqUBiuMO1fNi60QsSR 1d5Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id a1si1766695edx.320.2020.08.26.10.33.55; Wed, 26 Aug 2020 10:34:19 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726929AbgHZRaQ (ORCPT + 99 others); Wed, 26 Aug 2020 13:30:16 -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