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=-8.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 49074C433E6 for ; Wed, 27 Jan 2021 10:05:13 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 925FB20781 for ; Wed, 27 Jan 2021 10:05:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 925FB20781 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id B26E66B0005; Wed, 27 Jan 2021 05:05:11 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id AD6C06B0006; Wed, 27 Jan 2021 05:05:11 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9EBD36B0007; Wed, 27 Jan 2021 05:05:11 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0082.hostedemail.com [216.40.44.82]) by kanga.kvack.org (Postfix) with ESMTP id 8684A6B0005 for ; Wed, 27 Jan 2021 05:05:11 -0500 (EST) Received: from smtpin11.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 525CA180AD801 for ; Wed, 27 Jan 2021 10:05:11 +0000 (UTC) X-FDA: 77751122022.11.cable86_18001c427596 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin11.hostedemail.com (Postfix) with ESMTP id 27DF1180F8B98 for ; Wed, 27 Jan 2021 10:05:11 +0000 (UTC) X-HE-Tag: cable86_18001c427596 X-Filterd-Recvd-Size: 5678 Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by imf04.hostedemail.com (Postfix) with ESMTP for ; Wed, 27 Jan 2021 10:05:10 +0000 (UTC) Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 10RA2uWt064715; Wed, 27 Jan 2021 05:05:04 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : content-transfer-encoding : in-reply-to; s=pp1; bh=ZbyhUIIa6b/q5x+lD1FboRzmgCjgx7QUQ+N1eISoezM=; b=Tew4nsOLTlLR9zsPScAKuBOGOw1RUuk6OgdnZsQJmkA2H0FxLuBjG6gDz9QGDsXuP5Xg +sVouO1lk6ZP84Xx840zWK16ZHzVvNcGnV8Ya97Lrnz7eS8U9RqeSoI7LS9sf09wvIh0 xmuRiFeDGpXiBMrD2dpDPzZt8m4T1S14rmKyYEKZi5ZZcHct9p6eMeY7wea44uvLTS29 jsgB/ZI4ZMwTHEUbd1Zn2NdRRu5vOh9QlssMs/zW7Ky9xUVarH2DamoNdaGsNM9kHQcJ Y9xDY/5ZNQGxyVdWYgpMjzzS6w4+lWyEU8BfgY3d/7g6uUO/SrQJPV0W6j8HQ7ikepEd IA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 36b410umtq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 27 Jan 2021 05:05:03 -0500 Received: from m0098419.ppops.net (m0098419.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 10RA36eh065860; Wed, 27 Jan 2021 05:05:03 -0500 Received: from ppma03ams.nl.ibm.com (62.31.33a9.ip4.static.sl-reverse.com [169.51.49.98]) by mx0b-001b2d01.pphosted.com with ESMTP id 36b410umsf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 27 Jan 2021 05:05:03 -0500 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 10RA31Td003257; Wed, 27 Jan 2021 10:05:01 GMT Received: from b06cxnps4074.portsmouth.uk.ibm.com (d06relay11.portsmouth.uk.ibm.com [9.149.109.196]) by ppma03ams.nl.ibm.com with ESMTP id 368be7up8h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 27 Jan 2021 10:05:01 +0000 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 10RA4x1c42205520 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 27 Jan 2021 10:04:59 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 66B8652051; Wed, 27 Jan 2021 10:04:59 +0000 (GMT) Received: from linux.ibm.com (unknown [9.145.68.25]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTPS id C4F1552050; Wed, 27 Jan 2021 10:04:57 +0000 (GMT) Date: Wed, 27 Jan 2021 12:04:54 +0200 From: Mike Rapoport To: =?utf-8?Q?=C5=81ukasz?= Majczak Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, =?utf-8?B?UmFkb3PFgmF3?= Biernacki , Marcin Wojtas , Alex Levin , Guenter Roeck , Jesse Barnes , Chris Wilson , "Sarvela, Tomi P" Subject: Re: PROBLEM: Crash after mm: fix initialization of struct page for holes in memory layout Message-ID: <20210127100454.GK196782@linux.ibm.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343,18.0.737 definitions=2021-01-27_04:2021-01-26,2021-01-27 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 clxscore=1011 mlxlogscore=999 adultscore=0 priorityscore=1501 impostorscore=0 mlxscore=0 suspectscore=0 lowpriorityscore=0 phishscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101270053 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: 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 memory l= ayout >=20 > Hi, > I was trying to run v5.11-rc5 on my Samsung Chromebook Pro (Caroline), > 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 - and > 5.11-rc5), > bisect results points to: >=20 > d3921cb8be29 mm: fix initialization of struct page for holes in memory = layout >=20 > Reproduction is just to build and load the kernel. >=20 > If it will help any how I am attaching: > - /proc/cpuinfo (from healthy system): > https://gist.github.com/semihalf-majczak-lukasz/3517867bf39f07377c1a785= b64a97066 > - my .config file (for a broken system): > https://gist.github.com/semihalf-majczak-lukasz/584b329f1bf3e43b53efe8e= 18b5da33c >=20 > If there is anything I could add/do/test to help fix this please let me= know. Chris Wilson also reported boot failures on several Chromebooks: https://lore.kernel.org/lkml/161160687463.28991.354987542182281928@build.= 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 scre= en it would be really helpful. > Best regards > Lukasz --=20 Sincerely yours, Mike.