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 6C070C433E0 for ; Wed, 27 Jan 2021 10:08:31 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id BF0D62072C for ; Wed, 27 Jan 2021 10:08:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BF0D62072C 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 D91246B0005; Wed, 27 Jan 2021 05:08:29 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id D1C006B0006; Wed, 27 Jan 2021 05:08:29 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C092D6B0007; Wed, 27 Jan 2021 05:08:29 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0159.hostedemail.com [216.40.44.159]) by kanga.kvack.org (Postfix) with ESMTP id A4C796B0005 for ; Wed, 27 Jan 2021 05:08:29 -0500 (EST) Received: from smtpin10.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 6C720180AD804 for ; Wed, 27 Jan 2021 10:08:29 +0000 (UTC) X-FDA: 77751130338.10.bead20_4301f0527596 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin10.hostedemail.com (Postfix) with ESMTP id 4B8C4169F9A for ; Wed, 27 Jan 2021 10:08:29 +0000 (UTC) X-HE-Tag: bead20_4301f0527596 X-Filterd-Recvd-Size: 4921 Received: from mail-pg1-f179.google.com (mail-pg1-f179.google.com [209.85.215.179]) by imf47.hostedemail.com (Postfix) with ESMTP for ; Wed, 27 Jan 2021 10:08:28 +0000 (UTC) Received: by mail-pg1-f179.google.com with SMTP id v19so1221136pgj.12 for ; Wed, 27 Jan 2021 02:08:28 -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=0gBgHF3+KJRKugCZyhYXWiUq6+B+AWpiBixHa8F3yPQ=; b=stB1k6gAJxr1IbaoMiaN+TGAYi4qwpHcguGN4IjAXqEizfhTNnbLMuPCrDDNWW1xF8 pFzIZm75LoA9xh/XLuqoYw9MeKiTQuxP5EXVkDQ3DG6tPRMQsobIAlsNoaZOReY8Inb1 pMhWh/keDMAPY+QAWKxrR+QsfQ+m2FgtMEji+AyupOICAYikYB3YkICYH8vbBOtD5Xvg pk9kFfG8ku2+5KfNTw84A98vSzcBT3w2LZaTAkKHe+pdGvaNtHJXFNfEJ9gVm1f/Qhv1 prHWvFQwijjrQtrciE0BD5BMRdXSm20I0L2r3OyZJ3VzbpZ3ugFfKXgcQlt2i+1M/Ggu GPsA== 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=0gBgHF3+KJRKugCZyhYXWiUq6+B+AWpiBixHa8F3yPQ=; b=qXLrjLxculVYI2ZSZ7iGK6gbOWs0ObwJCBPHV/Mr/HXXERrqjukhH3SudlA1gTeWOK phvpfqMqeMFvA26psj8Z9YI6b3pXjLbjzeZaY1Gak9UbqUADWNIlzwWDU/s6ht6DqgFy jtQCT8zY6KoEeCQpjrv56MpucctTVOGXzUXQp/6amoi890ssF7CFKmVqXdbW2EtXEIvH bJXHnQjvrk4MsyEeMVWqt8mzhUZc09ooN2FEOdfmoZknG2cmT8nhUn2QE0fN2fQrR+6L zdIWDVi4QmL8vlBvsumnTw1irnorYFk94DKD1B9Sq+plyrfi+1wuOEzTm0/zzuwisuyo aFIQ== X-Gm-Message-State: AOAM533g9hKGl3jQq+Nc7vqA+Dfs2eT+4bUfTXGDTjfuWSfydtU9ZeAl IFqZCLuOK7rPStyDvL3C2cnm4QP6FTCKVRolthtcQg== X-Google-Smtp-Source: ABdhPJylF1pvXvDM57Wggpr3dL+Hr7Xgvby6sdCPKFYpMWJBs1mnML2k2YXaJqLg5M3pM9dtqR3sZkWkLDddBZ+caIE= X-Received: by 2002:a65:418b:: with SMTP id a11mr10393500pgq.231.1611742107694; Wed, 27 Jan 2021 02:08:27 -0800 (PST) MIME-Version: 1.0 References: <20210127100454.GK196782@linux.ibm.com> In-Reply-To: <20210127100454.GK196782@linux.ibm.com> From: =?UTF-8?Q?=C5=81ukasz_Majczak?= Date: Wed, 27 Jan 2021 11:08:17 +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: 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. 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 memory l= ayout > > > > 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: > > > > d3921cb8be29 mm: fix initialization of struct page for holes in memory = 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/3517867bf39f07377c1a785= b64a97066 > > - my .config file (for a broken system): > > https://gist.github.com/semihalf-majczak-lukasz/584b329f1bf3e43b53efe8e= 18b5da33c > > > > 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 > > -- > Sincerely yours, > Mike.