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=-8.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 AA3E9C433E0 for ; Wed, 27 Jan 2021 12:21:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6D8FE20786 for ; Wed, 27 Jan 2021 12:21:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237741AbhA0MV2 (ORCPT ); Wed, 27 Jan 2021 07:21:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231913AbhA0MQQ (ORCPT ); Wed, 27 Jan 2021 07:16:16 -0500 Received: from mail-pg1-x52b.google.com (mail-pg1-x52b.google.com [IPv6:2607:f8b0:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87B78C061574 for ; Wed, 27 Jan 2021 04:15:25 -0800 (PST) Received: by mail-pg1-x52b.google.com with SMTP id o7so1476056pgl.1 for ; Wed, 27 Jan 2021 04:15:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=9gta6x0QNM0KEQiYKbjvUoee3fwpqJfT+h2l/JxVVIc=; b=W7XHOat00nAOlB1D2IMZTvVe4bBPx9EWxubVPPCIhmQyM30LnZTZwHXXEvxX14JwkP DOPwbZjA3seoE+CTfkZxXvHBDwShISVh298GDewbHa/Y47f57B3zb7bnRL4CDP9eBcQZ NxuTkdfYqHksyDZEqzooCHT8I68+BIVvdoKHYlAUB2mDCUvYNH84ZyjHnkpWeOkIDvjc krH0O2/drfQYs67iRqBB33Pk2bbyh5pnseyXcXooK/bUe/aibLOAunKkX1g40rZIDESQ D91R9F/JqierJbnDWBgdfT7w+UtXdXz8uQwODV/uijmljurCAVZj4m+v7QBhGYb0bsFA xbNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=9gta6x0QNM0KEQiYKbjvUoee3fwpqJfT+h2l/JxVVIc=; b=FpEaOYgFskwOlnMtdNuS3FuZctQES5RMa1VDresAKx7bYe1Txl9Ds8TUZ6wpzeDDFf FCnQlil1zpwHwEDA1ph8NW16d6SmPGIDuxIFaRwmpWd50eUPwenaCrQe17ZBizNi/EVe +g5WRzlPGDaTZgoWNAXCX6qcHn2z4jJcX8c8aGfhUmEGAoE8S69AjXsr0Vc5oUjFn2tV AfP5/VaB7qrqofRihw1aXP+ZtL+lqcfDWHfYSeYC6i8Jt3YGgQ/7En2dRVvxSDkP4iiI J5c8NfRDX4HTSEhO4cRLYhwN+rNQSADMOV12/V1+N0ub2oEmrkzAlRKZoT8/4oKsRDQm LxDA== X-Gm-Message-State: AOAM530e3DYgccsmZIUdwt02JwOaMUEDabnwOTtMqFPfyDne371ZrEX+ Whfw7TXdUY5cp92/tTmmHKriI6Bw7seBZyGbzbvmiA== X-Google-Smtp-Source: ABdhPJzlp0xIxfYkX/lfLr9s78qS0ay/2zCRG/chpauCrQMMafTYf2sgGg6FT2+dLGTdzuTUoshNBhncCIh2TOA2jL0= X-Received: by 2002:a65:64da:: with SMTP id t26mr10814245pgv.145.1611749725065; Wed, 27 Jan 2021 04:15:25 -0800 (PST) MIME-Version: 1.0 References: <20210127100454.GK196782@linux.ibm.com> <20210127111858.GA273567@linux.ibm.com> In-Reply-To: <20210127111858.GA273567@linux.ibm.com> From: =?UTF-8?Q?=C5=81ukasz_Majczak?= Date: Wed, 27 Jan 2021 13:15:14 +0100 Message-ID: Subject: Re: PROBLEM: Crash after mm: fix initialization of struct page for holes in memory layout To: Mike Rapoport Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, =?UTF-8?Q?Rados=C5=82aw_Biernacki?= , Marcin Wojtas , Alex Levin , Guenter Roeck , Jesse Barnes , Chris Wilson , "Sarvela, Tomi P" Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Unfortunately nothing :( my current kernel command line contains: console=3DttyS0,115200n8 debug earlyprintk=3Dserial loglevel=3D7 I was thinking about using earlycon, but it seems to be blocked. (I think the lack of earlycon might be related to Chromebook HW security design. There is an EC controller which is a part of AP -> serial chain as kernel messages are considered sensitive from a security standpoint.) Best regards, Lukasz =C5=9Br., 27 sty 2021 o 12:19 Mike Rapoport napisa=C5= =82(a): > > On Wed, Jan 27, 2021 at 11:08:17AM +0100, =C5=81ukasz Majczak wrote: > > Hi Mike, > > > > Actually I have a serial console attached (via servo device), but > > there is no output :( and also the reboot/crash is very fast/immediate > > after power on. > > If you boot with earlyprintk=3Dserial are there any messages? > > > Best regards > > Lukasz > > > > =C5=9Br., 27 sty 2021 o 11:05 Mike Rapoport napisa= =C5=82(a): > > > > > > Hi Lukasz, > > > > > > On Wed, Jan 27, 2021 at 10:22:29AM +0100, =C5=81ukasz Majczak wrote: > > > > Crash after mm: fix initialization of struct page for holes in memo= ry layout > > > > > > > > Hi, > > > > I was trying to run v5.11-rc5 on my Samsung Chromebook Pro (Carolin= e), > > > > but I've noticed it has crashed - unfortunately it seems to happen = at > > > > a very early stage - No output to the console nor to the screen, so= I > > > > have started a bisect (between 5.11-rc4 - which works just find - a= nd > > > > 5.11-rc5), > > > > bisect results points to: > > > > > > > > d3921cb8be29 mm: fix initialization of struct page for holes in mem= ory layout > > > > > > > > Reproduction is just to build and load the kernel. > > > > > > > > If it will help any how I am attaching: > > > > - /proc/cpuinfo (from healthy system): > > > > https://gist.github.com/semihalf-majczak-lukasz/3517867bf39f07377c1= a785b64a97066 > > > > - my .config file (for a broken system): > > > > https://gist.github.com/semihalf-majczak-lukasz/584b329f1bf3e43b53e= fe8e18b5da33c > > > > > > > > If there is anything I could add/do/test to help fix this please le= t me know. > > > > > > Chris Wilson also reported boot failures on several Chromebooks: > > > > > > https://lore.kernel.org/lkml/161160687463.28991.354987542182281928@bu= ild.alporthouse.com > > > > > > I presume serial console is not an option, so if you could boot with > > > earlyprintk=3Dvga and see if there is anything useful printed on the = screen > > > it would be really helpful. > > > > > > > Best regards > > > > Lukasz > > > > > > -- > > > Sincerely yours, > > > Mike. > > -- > Sincerely yours, > Mike.