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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 D4069C4360C for ; Sat, 5 Oct 2019 02:12:50 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9211E20830 for ; Sat, 5 Oct 2019 02:12:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="TZUla/ej"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b="EsQx4S3W"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sharedspace.onmicrosoft.com header.i=@sharedspace.onmicrosoft.com header.b="Z/0Mrs8X" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9211E20830 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=wdc.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Content-ID:In-Reply-To: References:Message-ID:Date:Subject:To:From:Reply-To:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=vU2fM3NDN/DGjIk+zObR5SJuK9PDJuIcNptlin9Khao=; b=TZUla/ejP3nZQ0 AMUjp1d1ho/E0K26WZB9szMVVpigZ8Z67msOSCLks34xzHygWGzZaKrIvf7kTwK42XzcmkFg+XZwL LkYi10ahMKkWdSLx4+ur/TZRGDbbLTLuuoRzMaAIX0Ye25Jz5Cx09RO2JpTV3qwxAqIIGSn2KdPgs DThp5WdFuJ9Dg/kEMDSTg6VJFGXmhMaFOjxu6grQlMMWod4QoKEEDQjQNOedmAIrWYn6hiN2HBX6Y x7RgsZRvzCL7MniH9bEX1gDqfpzksQWAZdOt5bVxWu7K/49Pmf4yLhsh0j7xBwJjMif26epcoTaAD n20Y0RqxiD3AxV9IBoAw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iGZYi-0001jq-SW; Sat, 05 Oct 2019 02:12:36 +0000 Received: from esa2.hgst.iphmx.com ([68.232.143.124]) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iGZYf-0001jM-It; Sat, 05 Oct 2019 02:12:35 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1570241571; x=1601777571; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=5eMWim/lCqIjWUj+ATIls1k4bz5YIwKirCHBB2mppjU=; b=EsQx4S3W4th0PU81HOoXl0owVL1bVN2XCvYIzRIRSx15wdKhtqU2w4fM hJNx3wkvoorYRLwRTPXnDL3m93QuM6Zz1OlLEA+O7y4q1lw1HpO9Lxxe2 2WSMZukPFYbgU4E4E/ob+CVHcyzeRXAhq62siKgf4LmA2xDmxq2du0Tzt EsHriF4dx069uoWVCp2brdjlN3R8G6FXMICfI0HQghPKb5sciOVm7JQyI BSwQwQfoLp1Cb6S8nJRkj4keC4vH6WcgtJFV8quZto6zDiXsRH2youndT V/0ReKfkumoeZEnNJvmqqyaetLaL71E5JasrH+QMrQ6rkbQV5+aNfo6nh w==; IronPort-SDR: Ekkj5TfcM5Ty/BG2XWlw1MdkfkanhEtXdfJw/Ie78KVOoPi22/PvuhoktGwVN+eOWpt3liK0WO 1Oa/y8fkEcozEvMscQnRDL5ISxDbWv7w/2j489+WPoOYrJcmlB9gC8tbJm2mPJayoaZKYShiv3 dLBYJgsEjea1AW0RXX37lDn3Cm/QKS5kyaK/9Crv/W0x50zArn/pIOVJmy/drbBRjS3zvrkYfO uThME6t27t4MPJr/JSv/Rs02HyEfucnQa0XaGqT9IB+UhKeCbyzF+ID1YgE+XzA3L+/u1NeINs 8Hs= X-IronPort-AV: E=Sophos;i="5.67,258,1566835200"; d="scan'208";a="220792529" Received: from mail-dm3nam05lp2057.outbound.protection.outlook.com (HELO NAM05-DM3-obe.outbound.protection.outlook.com) ([104.47.49.57]) by ob1.hgst.iphmx.com with ESMTP; 05 Oct 2019 10:12:39 +0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=WVlIzbKMRYU+2xpl9KJIQ52ZdgR61AE7GuvcesVPGsD96wUfEas2nw7pe+Ym+NxcQY8wN0hWLIKP+aJ7wWktV8s59Mg0T3GXO1JVucffw9kkHO/QxendfX2G0FWVshGFRauS3gIt5sVXYCtVf9hQjDnGOCsBt6mLFVNsBgyGfIU4aZvLPvtfJs0U/q2uQS8P8kYNwdMXC466CuVb32PyyYR5sNYo/VS8Mdw8iUJbwT66zOs26LJZDpyPMBwNCKI/4CqLcy2d5P+J4uc24l2d3GLaypIJQxo4zHg7CIqxz2cscTCq6ke8K7n5XC/uuw9d5xLKBOx2QXiZ5rX5Y6f7gg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=5eMWim/lCqIjWUj+ATIls1k4bz5YIwKirCHBB2mppjU=; b=mY1842c1sIKgSfb3nYExWVVZZ9xCyk3f67685d47N2xz8+uCfoIxxc7Yc7jrV+E3TEuFXISUjOmtTHK99RIMUsAuZT8tnddpZKvQUzLTDePXKA9MT0Ua1W963cKLYXr10ULE+92ljLbNYY8vXyPUdQT39+aho/tPRn4Rh710Z/wvXpuJwGFF9ahN3IPkZA2Vw6/nD9/SerQ/VUUoDdLlQC3SAO+S9ifALt/cCOLCLr/+3/pi2TcgHO4FXSStFY6OoL5ChKlAlO2LgVd4vEiEPPGlM2D9ps+5p1m3RxhDeJcxirWZTZ3dAJr266FGLfsINGE/ruo/9hwdowI46aOCOQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=wdc.com; dmarc=pass action=none header.from=wdc.com; dkim=pass header.d=wdc.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sharedspace.onmicrosoft.com; s=selector2-sharedspace-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=5eMWim/lCqIjWUj+ATIls1k4bz5YIwKirCHBB2mppjU=; b=Z/0Mrs8X7F/pLGaMR2nPNZKO3Lukl1GyaaEs8tKzznTUXm+zc6YyO+FT0x7hwjFj8Wm4mLBcsY357uztpHmS3Ajrjz4gfyDsS76m/EHFQPhR1wmvqSVzUmK0OK0wnq6A9VgUOCJ14ghVs6WSsEykxlOvsSl0OXGk2jq9YRJtHwY= Received: from BYAPR04MB3990.namprd04.prod.outlook.com (52.135.215.29) by BYAPR04MB4600.namprd04.prod.outlook.com (52.135.238.77) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2305.20; Sat, 5 Oct 2019 02:12:24 +0000 Received: from BYAPR04MB3990.namprd04.prod.outlook.com ([fe80::a50d:40a0:cd7b:acbc]) by BYAPR04MB3990.namprd04.prod.outlook.com ([fe80::a50d:40a0:cd7b:acbc%5]) with mapi id 15.20.2305.023; Sat, 5 Oct 2019 02:12:24 +0000 From: Atish Patra To: "alex@ghiti.fr" , "akpm@linux-foundation.org" Subject: Re: [PATCH v6 14/14] riscv: Make mmap allocation top-down by default Thread-Topic: [PATCH v6 14/14] riscv: Make mmap allocation top-down by default Thread-Index: AQHVTbNRR2y1x3jR5Uinm4nvlyFP7KdLqT4A Date: Sat, 5 Oct 2019 02:12:24 +0000 Message-ID: <208433f810b5b07b1e679d7eedb028697dff851b.camel@wdc.com> References: <20190808061756.19712-1-alex@ghiti.fr> <20190808061756.19712-15-alex@ghiti.fr> In-Reply-To: <20190808061756.19712-15-alex@ghiti.fr> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Atish.Patra@wdc.com; x-originating-ip: [199.255.44.250] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 452ee4fd-91ab-4284-87e7-08d749397659 x-ms-office365-filtering-ht: Tenant x-ms-traffictypediagnostic: BYAPR04MB4600: x-ms-exchange-purlcount: 1 x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:6108; x-forefront-prvs: 0181F4652A x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(4636009)(136003)(376002)(346002)(396003)(39860400002)(366004)(189003)(199004)(99286004)(76116006)(76176011)(6436002)(6116002)(7736002)(3846002)(36756003)(25786009)(4326008)(6512007)(66476007)(186003)(66446008)(66946007)(64756008)(66556008)(7416002)(118296001)(6246003)(6506007)(2501003)(26005)(6306002)(6486002)(8936002)(256004)(14444005)(305945005)(81156014)(81166006)(8676002)(54906003)(446003)(71190400001)(478600001)(316002)(966005)(102836004)(86362001)(14454004)(2906002)(110136005)(2616005)(486006)(476003)(66066001)(11346002)(71200400001)(229853002)(5660300002); DIR:OUT; SFP:1102; SCL:1; SRVR:BYAPR04MB4600; H:BYAPR04MB3990.namprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: b20dsy7pZLswF8sxjSfhd9+Nsm+2XoSY2c33jt69e8VfuV5uIF542XW6osKCyWxpeUiDf7Bx9GRYBzHRbZaYruZF8IWGBdtF1sfIH2vE+W+N/U0Ex993Yiaze7xD60iHKmqgrudqWKC2vBiOHnFmNqReswfTEKM4MTlgJ3LXBlzkZo6MF/WfqV9lJq1fIXZa+MRYi/43ZQW4OuQFsmzWIc9OHImqoomVsWrK7+ZsR0xMXPyjwSuhJbqsPM2n3E/XiCsdW1Of9PT2LIDst4PuSbbz3d6cPRzp+EQAJmHpBMTiyJ/MKHwTF6C2PL1TZkNEPBdsgDJDBlOsYYIPEt5FJf+zyYS6pw13IsEiiAn6s2wvV8Dv1paba0ELdPfYd4Y5bwzFGhQErd+3SkzC32Qn7mPXYdZPDpCtjcNy3J9i3CIyn55ycEaQGitG9QeAOTDW9GCDeYITMmTsBrBQh4xQiA== x-ms-exchange-transport-forked: True Content-ID: MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-Network-Message-Id: 452ee4fd-91ab-4284-87e7-08d749397659 X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Oct 2019 02:12:24.1448 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: vGRC7dpToUL2Ds0rQys+afnvRPFjCqe6YceNUn8YChJOgXhaoEaLaT6+xzxMTpnkUGJT6IfEnE5ybfY+wB0ACw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR04MB4600 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191004_191233_692310_E6B2C875 X-CRM114-Status: GOOD ( 16.87 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "aou@eecs.berkeley.edu" , "keescook@chromium.org" , "catalin.marinas@arm.com" , "palmer@sifive.com" , "will.deacon@arm.com" , "linux-kernel@vger.kernel.org" , "ralf@linux-mips.org" , "linux@armlinux.org.uk" , "linux-mm@kvack.org" , "paul.burton@mips.com" , "viro@zeniv.linux.org.uk" , "paul.walmsley@sifive.com" , "jhogan@kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-riscv@lists.infradead.org" , "hch@lst.de" , "linux-arm-kernel@lists.infradead.org" , "mcgrof@kernel.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, 2019-08-08 at 02:17 -0400, Alexandre Ghiti wrote: > In order to avoid wasting user address space by using bottom-up mmap > allocation scheme, prefer top-down scheme when possible. > > Before: > root@qemuriscv64:~# cat /proc/self/maps > 00010000-00016000 r-xp 00000000 fe:00 6389 /bin/cat.coreutils > 00016000-00017000 r--p 00005000 fe:00 6389 /bin/cat.coreutils > 00017000-00018000 rw-p 00006000 fe:00 6389 /bin/cat.coreutils > 00018000-00039000 rw-p 00000000 00:00 0 [heap] > 1555556000-155556d000 r-xp 00000000 fe:00 7193 /lib/ld-2.28.so > 155556d000-155556e000 r--p 00016000 fe:00 7193 /lib/ld-2.28.so > 155556e000-155556f000 rw-p 00017000 fe:00 7193 /lib/ld-2.28.so > 155556f000-1555570000 rw-p 00000000 00:00 0 > 1555570000-1555572000 r-xp 00000000 00:00 0 [vdso] > 1555574000-1555576000 rw-p 00000000 00:00 0 > 1555576000-1555674000 r-xp 00000000 fe:00 7187 /lib/libc-2.28.so > 1555674000-1555678000 r--p 000fd000 fe:00 7187 /lib/libc-2.28.so > 1555678000-155567a000 rw-p 00101000 fe:00 7187 /lib/libc-2.28.so > 155567a000-15556a0000 rw-p 00000000 00:00 0 > 3fffb90000-3fffbb1000 rw-p 00000000 00:00 0 [stack] > > After: > root@qemuriscv64:~# cat /proc/self/maps > 00010000-00016000 r-xp 00000000 fe:00 6389 /bin/cat.coreutils > 00016000-00017000 r--p 00005000 fe:00 6389 /bin/cat.coreutils > 00017000-00018000 rw-p 00006000 fe:00 6389 /bin/cat.coreutils > 2de81000-2dea2000 rw-p 00000000 00:00 0 [heap] > 3ff7eb6000-3ff7ed8000 rw-p 00000000 00:00 0 > 3ff7ed8000-3ff7fd6000 r-xp 00000000 fe:00 7187 /lib/libc-2.28.so > 3ff7fd6000-3ff7fda000 r--p 000fd000 fe:00 7187 /lib/libc-2.28.so > 3ff7fda000-3ff7fdc000 rw-p 00101000 fe:00 7187 /lib/libc-2.28.so > 3ff7fdc000-3ff7fe2000 rw-p 00000000 00:00 0 > 3ff7fe4000-3ff7fe6000 r-xp 00000000 00:00 0 [vdso] > 3ff7fe6000-3ff7ffd000 r-xp 00000000 fe:00 7193 /lib/ld-2.28.so > 3ff7ffd000-3ff7ffe000 r--p 00016000 fe:00 7193 /lib/ld-2.28.so > 3ff7ffe000-3ff7fff000 rw-p 00017000 fe:00 7193 /lib/ld-2.28.so > 3ff7fff000-3ff8000000 rw-p 00000000 00:00 0 > 3fff888000-3fff8a9000 rw-p 00000000 00:00 0 [stack] > > Signed-off-by: Alexandre Ghiti > Acked-by: Paul Walmsley > Reviewed-by: Christoph Hellwig > Reviewed-by: Kees Cook > Reviewed-by: Luis Chamberlain > --- > arch/riscv/Kconfig | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig > index 59a4727ecd6c..87dc5370becb 100644 > --- a/arch/riscv/Kconfig > +++ b/arch/riscv/Kconfig > @@ -54,6 +54,18 @@ config RISCV > select EDAC_SUPPORT > select ARCH_HAS_GIGANTIC_PAGE > select ARCH_WANT_HUGE_PMD_SHARE if 64BIT > + select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU > + select HAVE_ARCH_MMAP_RND_BITS > + > +config ARCH_MMAP_RND_BITS_MIN > + default 18 if 64BIT > + default 8 > + > +# max bits determined by the following formula: > +# VA_BITS - PAGE_SHIFT - 3 > +config ARCH_MMAP_RND_BITS_MAX > + default 24 if 64BIT # SV39 based > + default 17 > > config MMU > def_bool y With this patch, I am not able to boot a Fedora Linux(a Gnome desktop image) on RISC-V hardware (Unleashed + Microsemi Expansion board). The booting gets stuck right after systemd starts. https://paste.fedoraproject.org/paste/TOrUMqqKH-pGFX7CnfajDg Reverting just this patch allow to boot Fedora successfully on specific RISC-V hardware. I have not root caused the issue but it looks like it might have messed userpsace mapping. -- Regards, Atish _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel