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=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no 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 57F74C3A589 for ; Thu, 15 Aug 2019 21:32:29 +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 24CD120644 for ; Thu, 15 Aug 2019 21:32:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="kD6GbUUd"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b="E7p9lQ+v"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sharedspace.onmicrosoft.com header.i=@sharedspace.onmicrosoft.com header.b="QHnaMbq8" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 24CD120644 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-riscv-bounces+infradead-linux-riscv=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=BAXpWaaExFFHp6/FJdYJUFUJRG9ulywWSyW5rsN+iVc=; b=kD6GbUUdaYmOPW HUQ0iIGDt4CSL73oeHGwiASeht9keT2zjwcq6pJrs2a3+g1r6MZnS0bs1tAxYkSRyC0+01YQHl23c U8gYqZN7XP3/eXsE+5KVUVyJj1Sh74PaGYnu6LtZ6Hvw2D1UcURH48Ij95iVjd5bwnjihZDhQS39Y ibX99kJlk7A4JX27S5jRDk2BQ2Y7QrgHJjX0VOU0j1e/+PZ9bSSOAS53OQB7Vq77TOBCZKLGLbbT8 hURQivZX0ogctz1SBR0b5fIFg2oJIusFV52j4lDohHSHSXwn49M/NGHUzfXLPRIEoJbpZIOspS9ec qQMvAWJ7HcRuOaoyVZcg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hyNM7-0000ek-I3; Thu, 15 Aug 2019 21:32:23 +0000 Received: from esa5.hgst.iphmx.com ([216.71.153.144]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hyNM5-0000e2-4J for linux-riscv@lists.infradead.org; Thu, 15 Aug 2019 21:32:22 +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=1565904742; x=1597440742; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=yYFSEQkHqKdpNXJTMbHP1qd8pqN9z/B8+2PPV1KS44g=; b=E7p9lQ+vxxM84I/Xs43tujpEitPR9GGKG9+lDOxAhzsuh1HKMlpZo8Vc bzOgeFJWGBQuyHoigfsJc3m9Kx64bervxuxO/1//fI6PefEgA65FPzvOd s2y2WMkb8Aj4Ded9hkYv/j70tDl5lrOP6ZEXlAUv0hZljK/hJ0q0gqG4V 89NEc3Y71kFyXtVzlkLEKbBEu4JBuyHvzH2++CWvhJJWcj8tRfCNlhIYz pCtUAzjxR3sF09gcbfwk0YUiqtz9RvYqHXiFVMoa0DNX35OJ9jfsEMYRY l1qOqlnGcVt4ALYK8cWac6qikKs63Yozil7PkADA3DRoTGMaupaY6QkSw g==; IronPort-SDR: 3CeGUfjsKYe/e8ZArBgLKScgQOp5k9DTlEO/GG1z+ai+LDo6zJthgEM94XABZlU0PcSV+oq95N bnuaowS6CtqoP8+XddNMcqkx21ZXZWP9gDr10dCuLYnTVNFM4dmZd6EisiQKX/TCdevMrgw/ig 6j9HAZujJ++n405Y1Etsem8P7hJblKavLdEaSW/nWv+E1A1WLoTjf4+PrmSIrS0P8WGhordbpW toMjCA5yQbSPvjlrDpl7T0IjssvyYhOcjDfm7KejcrTZTD0Rm05o6Ujx27Wkko+i0m3JRHVVxl BXc= X-IronPort-AV: E=Sophos;i="5.64,389,1559491200"; d="scan'208";a="116881348" Received: from mail-by2nam05lp2056.outbound.protection.outlook.com (HELO NAM05-BY2-obe.outbound.protection.outlook.com) ([104.47.50.56]) by ob1.hgst.iphmx.com with ESMTP; 16 Aug 2019 05:32:19 +0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=IMOAyDt+Mj6Oe+K/qu7wu/NUzwMvgy9RxZxQVyCai0NJAcXzSYkxJdAUTM0JGsxszV0+7vZRtz/XguA158RJGlbo+MN0d8MVgWbDn3dcqDabrUyv0rivnItcRPg9H3ALHDkEBpSnujq8Jc+7yVbmMQO30ZXAhRqi+xeWpAj6tUClMUdlMJP8x/uVfIcOffuyBZ4o6K739ydCLwhC1JhacMh9wp8SYWi0j0Nr0LHg2pUuYg/BT5tVaZDV113hn0mQhaklZwc6v04CHw7c4kjXbxhgHUnLukREGJtVN6wwwYc0K0ZSojbdtqjTgLdbf3FtgMpYET967JLQCvhDIEjO+g== 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=yYFSEQkHqKdpNXJTMbHP1qd8pqN9z/B8+2PPV1KS44g=; b=LQWwU2mARMSAFKdnelekR1rcfYJ08zbezSIMvMSaAF2yiDzA1Q/T1EnRVPXzYg4ZhPwyt9Z7kWROIsEJfaHqMI1r2jhOrTWpNUfBLn1PimhNV98Ht8Tto7HLdvf0Zuzxmj/ketY+EzkNYuNK9bglDcAY6jcEZNBVskoV3/7GbpyaPDEbCCafQR/CyicVbCXEVHZ02yQ6oW/+GgO/HMd0gyb9KIIZE1IoMizpZD7RPMX3LMxFnQGLJcd2TZ4wQFkOfT02ItVRwEvoaOqF78vKGK1TSHN2Nt5CocupCr5lhkkklRjV8AF138E9i8KajoBTMB3oSGlXYPqKoMmPTUPaGQ== 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=yYFSEQkHqKdpNXJTMbHP1qd8pqN9z/B8+2PPV1KS44g=; b=QHnaMbq8jZEhXvpN7KjFj6qTe4bMeOZfWjWJEfWlazid8zhotkHE1+6W0s+YMmcJFxRlc18BQ8Ptxtj+4j1x0uw9IaugcKiaxCWDHt4ygD5jcqbrWu892Hs9wp1Er3MUs7ikYsAJoBRJnp0TJUqE+lEWqTTQufh3Bt+cZo73KGA= Received: from BYAPR04MB4901.namprd04.prod.outlook.com (52.135.232.206) by BYAPR04MB6198.namprd04.prod.outlook.com (20.178.232.206) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2178.16; Thu, 15 Aug 2019 21:32:17 +0000 Received: from BYAPR04MB4901.namprd04.prod.outlook.com ([fe80::702b:2326:3cee:c07a]) by BYAPR04MB4901.namprd04.prod.outlook.com ([fe80::702b:2326:3cee:c07a%2]) with mapi id 15.20.2157.022; Thu, 15 Aug 2019 21:32:17 +0000 From: Alistair Francis To: "paul.walmsley@sifive.com" , "david.abdurachmanov@gmail.com" Subject: Re: [PATCH v5 2/2] RISC-V: Setup initial page tables in two stages Thread-Topic: [PATCH v5 2/2] RISC-V: Setup initial page tables in two stages Thread-Index: AQHVN3xcQ1Fn35uAxU+uy0ugjEz8uab8xqoAgAADpYCAABb1gIAAEJuA Date: Thu, 15 Aug 2019 21:32:17 +0000 Message-ID: <89abd38c67eb3e02551b8a3a1705c9bf591cfbcf.camel@wdc.com> References: <20190607060049.29257-1-anup.patel@wdc.com> <20190607060049.29257-3-anup.patel@wdc.com> <847fb8c879bbd2c3fd41dc1e428b3217253acebb.camel@wdc.com> In-Reply-To: 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=Alistair.Francis@wdc.com; x-originating-ip: [199.255.44.250] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 2ba77f8c-a291-4478-984d-08d721c80be9 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(4618075)(2017052603328)(7193020); SRVR:BYAPR04MB6198; x-ms-traffictypediagnostic: BYAPR04MB6198: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:6790; x-forefront-prvs: 01304918F3 x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(4636009)(376002)(346002)(39860400002)(396003)(136003)(366004)(199004)(189003)(45080400002)(486006)(25786009)(6116002)(81156014)(6486002)(86362001)(446003)(76116006)(81166006)(66946007)(3846002)(2616005)(476003)(66446008)(64756008)(66556008)(66476007)(6436002)(6506007)(99286004)(11346002)(76176011)(305945005)(7736002)(6246003)(4326008)(5660300002)(71200400001)(2906002)(316002)(36756003)(229853002)(110136005)(118296001)(71190400001)(26005)(8936002)(6512007)(102836004)(54906003)(14454004)(53936002)(186003)(14444005)(256004)(478600001)(8676002)(66066001)(2501003); DIR:OUT; SFP:1102; SCL:1; SRVR:BYAPR04MB6198; H:BYAPR04MB4901.namprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: ZQmrKoCLUz7QNp3g8Je9yFh6VKg7Qn3/UaTDh7q+6DLZxOqtCO7k/583tO1CrpOGiSzdXQ2+1CeA2V4V2C5Yc1ruL6QqmnVV5UNqtUAj0+Z+cG0UsAZIsc8mk84nkATZaYogUrhBB8eHgXNzvA3R+T9uwh3BvIMXzd951O+JLd1tAwMdyDp9wgbBa1CiCrjXN3iqOK9XqgogKUxSUjD3OfSlcuLQheVwB2DYNAoLd9NNEzjL/Dku0yHrdyhqeQGeHtK7v6zZv7WLhLxAhJPS9K1Rajwk9xD1SXLMKPUgAGul1FRutG4bFX98AXA539hdhIQdxK644J/EJTYZo+EMT3gpcdAKz4CvEnKKAdVl6PE4ZgE6y2fShGqrdNcY5cxsoTaUUltTvbfQRHqev0AoqsvRppy+gJm1HKErewCeB78= Content-ID: MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-Network-Message-Id: 2ba77f8c-a291-4478-984d-08d721c80be9 X-MS-Exchange-CrossTenant-originalarrivaltime: 15 Aug 2019 21:32:17.1719 (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: DeN7juKIIWV4rNNnWrmKpyso0bOBeBupJ8tXa+M7WACouQAHALaYnvsDYDONqirr4TDFTUtEQ+aQlqz/1ILS00EWefVPL/e61R/eYmnwFJA= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR04MB6198 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190815_143221_368473_F4137D5C X-CRM114-Status: GOOD ( 18.22 ) X-BeenThere: linux-riscv@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" , Anup Patel , "linux-kernel@vger.kernel.org" , "rppt@linux.ibm.com" , "hch@infradead.org" , Atish Patra , "palmer@sifive.com" , "linux-riscv@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org On Thu, 2019-08-15 at 13:29 -0700, Paul Walmsley wrote: > On Thu, 15 Aug 2019, David Abdurachmanov wrote: > > > Yes, I do see those in Fedora/RISCV build farm every morning, but > > with > > riscv64 and 5.2.0-rc7 kernel. > > [...] > > > fedora-riscv-4 login: [178876.406122] Unable to handle kernel > > paging > > request at virtual address 0000000000012a28 > > fedora-riscv-7 login: [17983.074847] Unable to handle kernel paging > > request at virtual address 0fffffdff5e14700 > > Alistair, you're seeing panics immediately after the userspace > transition, > right? 100% of the time? Yes, just after init (systemd) is started. I see this 100% of the time with 32-bit RISC-V. Here is an updated log with a little more context: [ 1.227072] EXT4-fs (vda): mounted filesystem with ordered data mode. Opts: (null) [ 1.228148] VFS: Mounted root (ext4 filesystem) on device 254:0. [ 1.274486] Freeing unused kernel memory: 192K [ 1.274788] This architecture does not have kernel memory protection. [ 1.275298] Run /sbin/init as init process [ 1.682749] systemd[1]: systemd 242-19-gdb2e367+ running in system mode. (-PAM -AUDIT -SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP -LIBCRYPTSETUP -GCRYPT -GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN2 -IDN -PCRE2 default-hierarchy=hybrid) [ 1.685536] Unable to handle kernel paging request at virtual address 9ff00c15 [ 1.686160] Oops [#1] [ 1.686409] Modules linked in: [ 1.686826] CPU: 0 PID: 1 Comm: systemd Not tainted 5.3.0-rc4 #1 [ 1.687388] sepc: c05d2f74 ra : c04bd60c sp : df04fce0 [ 1.687817] gp : c07af4a8 tp : df050000 t0 : 000000fc [ 1.688329] t1 : 00000002 t2 : 000003ef s0 : df04fcf0 [ 1.688763] s1 : df7090f8 a0 : 9ff00c15 a1 : c072f4a8 [ 1.689186] a2 : 00000000 a3 : 00000001 a4 : 00000001 [ 1.689587] a5 : df6f8138 a6 : 0000002f a7 : de62a000 [ 1.689970] s2 : c072f4a8 s3 : 00000000 s4 : 00000000 [ 1.690355] s5 : c07b1000 s6 : 00400cc0 s7 : 00000400 [ 1.690732] s8 : de496018 s9 : 00000000 s10: fffff000 [ 1.691114] s11: de496030 t3 : de62b000 t4 : 00000000 [ 1.691491] t5 : 00000000 t6 : 00000080 [ 1.691797] sstatus: 00000100 sbadaddr: 9ff00c15 scause: 0000000d [ 1.692861] ---[ end trace 7aed3616cacc20ea ]--- [ 1.695358] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 1.696158] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]--- > > If so, this is probably a different bug. Most likely the TLB > flushing > issue. I'm not sure. I have tried with Atish's OpenSBI and kernel patches but that didn't help. Reverting just this patch does fully fix the problem though. Alistair > > > - Paul _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv