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=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 D4DEBC433E0 for ; Wed, 27 Jan 2021 12:15:28 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 32B3A20786 for ; Wed, 27 Jan 2021 12:15:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 32B3A20786 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=semihalf.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6B9CC6B0007; Wed, 27 Jan 2021 07:15:27 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 643446B0008; Wed, 27 Jan 2021 07:15:27 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4E4346B000A; Wed, 27 Jan 2021 07:15:27 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0075.hostedemail.com [216.40.44.75]) by kanga.kvack.org (Postfix) with ESMTP id 344AB6B0007 for ; Wed, 27 Jan 2021 07:15:27 -0500 (EST) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id F31193637 for ; Wed, 27 Jan 2021 12:15:26 +0000 (UTC) X-FDA: 77751450294.22.able17_53089d327596 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin22.hostedemail.com (Postfix) with ESMTP id B4E0018038E74 for ; Wed, 27 Jan 2021 12:15:26 +0000 (UTC) X-HE-Tag: able17_53089d327596 X-Filterd-Recvd-Size: 5955 Received: from mail-pg1-f170.google.com (mail-pg1-f170.google.com [209.85.215.170]) by imf20.hostedemail.com (Postfix) with ESMTP for ; Wed, 27 Jan 2021 12:15:26 +0000 (UTC) Received: by mail-pg1-f170.google.com with SMTP id z21so1462910pgj.4 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=AEUKKTsTOBiAHV/yb18O8ykvnZPSs8aA/jeOBsNfQjcECVMdtbtLJyPLfiMY5Rb65J JM9nJpmpXJI0yp2bt6+DsR3D5jN2pbB6r734xqX1CpKDOtMDy8jjK9PF8iMRWd5yzpAv RtUTgXJk7HkayklKm/HfRynlqwlYfkceFtb6EmHjIGvQIyTVfMNOdqsClaelzSz8Vsp2 HVz3ej9TMR+NfeCp/UXap4QsAksnxgYcKaAiEmRv2QWIUmaUbiPKU+2a6C3U0VJjfO1F jAA3o8O1VsT9UG/fEVH2VhbAVqsSwG3wb964jgGOwH/5DrrO/Jm6fEAKOnuOT/xsVot3 NW9w== X-Gm-Message-State: AOAM5314my876pdANCFDeU3x5HDlR8Z1cy/e+OEFPrvOyCUBRB0HK/B2 WdNO0rGzSWHcth7u8dom3tp0klZifck7N5qEBuzcZg== 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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.