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 138C3CA9EC5 for ; Wed, 30 Oct 2019 19:58:40 +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 DBEAF20717 for ; Wed, 30 Oct 2019 19:58:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="hsoh0x/G"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b="LukHfIUk"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sharedspace.onmicrosoft.com header.i=@sharedspace.onmicrosoft.com header.b="rkU3s/Sw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DBEAF20717 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-nvme-bounces+linux-nvme=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:References:Message-ID:Date :Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: List-Owner; bh=RBHcqYnv1SRJvbbzSdkf5rotMMEirKVKrS870kcNG5M=; b=hsoh0x/G9DB+LD E8uhsZDBRPKLKEBeQ8AJnhs1ArmpsiPe/ZIvC4tFskC+V1NTO5nnAKkSjRThHI19uhWn2wQP2MWzH kShmboQJ/5OvWgx7+MfOJWC/q/7dE0ErQBboMkCQmAITxItOgwDkQLTu50nYXG92iYenA6/L0sDpg tbPEYkUJDPmmKbjzqUf3pUEQFW/TI6Tg/IHF939wqxv9WBkIt2qm9P//q++S5Cql1BPCEicQf5iT4 p86epVE3sA6q3Ox/JyFHr5wK/ZvFq/dJcWlsscy+wquRM3ln8t1axd8MVu11jnLzxv8QWU7+2qVUA +nlOnbYZP5bXZPwD9Kig==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iPu73-00048K-OA; Wed, 30 Oct 2019 19:58:37 +0000 Received: from esa4.hgst.iphmx.com ([216.71.154.42]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iPu71-00047s-76 for linux-nvme@lists.infradead.org; Wed, 30 Oct 2019 19:58:36 +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=1572465515; x=1604001515; h=from:to:cc:subject:date:message-id:references: content-transfer-encoding:mime-version; bh=7fvut1icy3HpLdm3YrqlQxNZNPZAvvZrBQTM87IWvbU=; b=LukHfIUkOenweqmRQbk1eC+Da9aihUKInyT5hS5vykEcIvJB3NMXRVuR E2p1f2HaHnENBuKzXwcvIlq9T+gLiQur63aRFvnptZRCGwmnBRg5D1Wvj jBjYt7FHLxLuvhr+k+lssFr9ba++ju8UyRgkHB/PNNTyLZBLdjVI0oRG6 3c8LfljSU819tfBU2a4Qe4XlUpQkRZhn7yXnPDP1AHEW/Ms9EvzbrnzMw voTv4vEytYDL0sVovuxEC/UH42KOQ/b9ZvVxdk2MHxiFg5MAFmSmhE699 QBNKv02VxobiP3O/rjEvLEoP3wJxjW6b6ZKRFM3vlsVTsPdaV2bFmP+r1 g==; IronPort-SDR: hDdK6Wz2Zb3+D6neVNu84EoEd5NYAOoNVuSQ5id9D9HHCII49dVjXdTPL+rhC5dMmt5wWhVeCC G/F4tJAFyWgmPHeG7kfuHLWlAHLAzk79ev/dzECbGPOO4c0w7pCML3Op89dR/55uOm4/+H20nR l+MzdD565tZs8PGgSRUUsjduVwVyAEq27OUS+iga0OK1PYEe5XsEeqqGvC5lGkGOWhjbnVsiyl o5C1F9jLbFImtspBdREeUm7hPMM1UL9ZBFIvJWpBajTWrU64rkvwHkFrDq4YX6rTWezPzhnTyQ w90= X-IronPort-AV: E=Sophos;i="5.68,248,1569254400"; d="scan'208";a="121731953" Received: from mail-bn3nam01lp2051.outbound.protection.outlook.com (HELO NAM01-BN3-obe.outbound.protection.outlook.com) ([104.47.33.51]) by ob1.hgst.iphmx.com with ESMTP; 31 Oct 2019 03:58:33 +0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=W8YDnjG8EdqBz0QgOIy+TOTWZrtWsk8IkJA4lgVXZNU96rVLVTiMa6r3nSMpYcQyXCfi6nqiY36VT2XQc/zuQl2EACudM5K1DU+ZANItbzXjNWoB1/Fm8SZEFo3Z7bWMJLg/Nt2W8LgdWs57EAnjlGVN0dYHB0BKQIpUGaY28PI71tGTVHcigZizkeQysBSlHdb/pt8Y6rk4El3vHXA2QYyxE1fx+hbRhCbqxoNRym0b9713PY8JqOySqjr2wm0chFQriYcyke0iDQnNQl7KUabl5T8J+VeyZKT2Z0AGsFttZyzTVvMg2kQjonKwAH7ZTpQVp8WTG3JhKAiDKVPtrg== 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=G7In7shVqQ9uXNX9+j7iIcb0igzZCEhOJ2dSzRju/+A=; b=ZV7hcestIu5MzhvisOseZZssNSRSdHJwRL7N7HBffS7Aux2evPncLgXxlzGlTd5p4eLVzTFyZdg+AtvHY1f4y7+GKRVbcOsvb9S3uQ/LuC9sN7h318dDF9rtixriWH4kCOL97o9ijnI5KQZwLz6AZxVk+gqYYqe89rA4QbIWdoWhyQKrqrL/BBBRyQie+hyxr/lnOFGGwLr1pOyqwt/O4ZaWCpb1chojABq3fMvcgZxhnDsi9N1NlbsceDdTndA+0Oqu27obx8GDwlabufGe4yawF8wOV1RzZiE8WTG0d7qMiBvt6d5x3lzv9EAIxo9Gay9qk1V2d5rZAxPwiloeRQ== 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=G7In7shVqQ9uXNX9+j7iIcb0igzZCEhOJ2dSzRju/+A=; b=rkU3s/SwtQXlcng2ZExYjlkCLGaN5PMCasxpRlSspydpnNjNR6HYzgixSlrHBcF6fpOIgf5a7NUfvo684tkpcDxgH+i+Xp7GmtZwm4019jWm07wntXzdc2zPA9+WDwKG9lIjAx6dJ3vk6wrHXIe40A5VvD72zj5bcrDV7ysIq5o= Received: from BYAPR04MB5749.namprd04.prod.outlook.com (20.179.57.21) by BYAPR04MB5271.namprd04.prod.outlook.com (20.178.49.28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2387.20; Wed, 30 Oct 2019 19:58:33 +0000 Received: from BYAPR04MB5749.namprd04.prod.outlook.com ([fe80::34a1:afd2:e5c1:77c7]) by BYAPR04MB5749.namprd04.prod.outlook.com ([fe80::34a1:afd2:e5c1:77c7%6]) with mapi id 15.20.2387.028; Wed, 30 Oct 2019 19:58:33 +0000 From: Chaitanya Kulkarni To: Daniel Wagner , "linux-nvme@lists.infradead.org" Subject: Re: [RFC] nvmet: Always remove processed AER elements from list Thread-Topic: [RFC] nvmet: Always remove processed AER elements from list Thread-Index: AQHVjzYhgmqnvQGm+02Suay/wXEq1Q== Date: Wed, 30 Oct 2019 19:58:32 +0000 Message-ID: References: <20191030152418.23753-1-dwagner@suse.de> 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=Chaitanya.Kulkarni@wdc.com; x-originating-ip: [199.255.45.62] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: f6cb92c6-92c6-4062-0ffe-08d75d738af4 x-ms-traffictypediagnostic: BYAPR04MB5271: x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:5797; x-forefront-prvs: 02065A9E77 x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(4636009)(376002)(346002)(39860400002)(366004)(136003)(396003)(199004)(189003)(64756008)(305945005)(7736002)(2501003)(316002)(53546011)(186003)(6506007)(99286004)(76176011)(26005)(102836004)(52536014)(14444005)(7696005)(54906003)(74316002)(3846002)(66446008)(33656002)(256004)(66476007)(6116002)(25786009)(2906002)(110136005)(5660300002)(66946007)(66556008)(14454004)(8676002)(66066001)(478600001)(229853002)(76116006)(446003)(4326008)(81166006)(81156014)(6436002)(71200400001)(6246003)(9686003)(476003)(486006)(86362001)(71190400001)(55016002)(8936002); DIR:OUT; SFP:1102; SCL:1; SRVR:BYAPR04MB5271; H:BYAPR04MB5749.namprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: ZsqYO+yV7FAjp29DJlg9sYYlyAdF1B+JsXidZFe4X6b4tdyT3XFGQZOqajG3Yp5I8eUepRBEigEzYpHjWcRCoU4IG3Fb5lzS95uzfqmJkm3tgKrEpDacj8OyxwH8gxlC5fo2xiUluQlgs+dlxrCj0YK3WhgZpGbUOu2oVnPzs/9ZT1AWSi7v5bvIWgucZRIHQJknI5l/JN8tW1DKQrYFx5aPirXCbHfUXYkEuxsn6/GFHPL0S+MPNBFsBENBGMjrLgENKPxxdrLbYSCjtpyTwv4g1oGVZd6RrMYui54I/cAP6rFX8vzvgAcqZHv5VsuZpMBeG27aPfC7GPh7Iu6NUtzNBgvIiVM6+5ggufql+LjO9CnRSxOtERu1QOmy8nNhazgNJ7UV7rE5NiJ+2TYFhwm+KDnJR4x+h/25ZB01Cok6tB2hXTlZeDaXW2pkMr5E x-ms-exchange-transport-forked: True MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-Network-Message-Id: f6cb92c6-92c6-4062-0ffe-08d75d738af4 X-MS-Exchange-CrossTenant-originalarrivaltime: 30 Oct 2019 19:58:32.8318 (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: xfMHjrxZCeXkn+qLBsNeRAn2dKR6sUZTqLGlYpl8Xe7wYOv36jzInAyQikXOAPiSpqaPpzg6mQPAdgHAhFxwPn/8wWEbgWzB0ts6YCw68mE= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR04MB5271 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191030_125835_297258_77C81328 X-CRM114-Status: GOOD ( 10.60 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "linux-kernel@vger.kernel.org" , Christoph Hellwig , Sagi Grimberg , Johannes Thumshirn Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On 10/30/2019 08:24 AM, Daniel Wagner wrote: > Hi, > > I've got following oops: > > PID: 79413 TASK: ffff92f03a814ec0 CPU: 19 COMMAND: "kworker/19:2" > #0 [ffffa5308b8c3c58] machine_kexec at ffffffff8e05dd02 > #1 [ffffa5308b8c3ca8] __crash_kexec at ffffffff8e12102a > #2 [ffffa5308b8c3d68] crash_kexec at ffffffff8e122019 > #3 [ffffa5308b8c3d80] oops_end at ffffffff8e02e091 > #4 [ffffa5308b8c3da0] general_protection at ffffffff8e8015c5 > [exception RIP: nvmet_async_event_work+94] > RIP: ffffffffc0d9a80e RSP: ffffa5308b8c3e58 RFLAGS: 00010202 > RAX: dead000000000100 RBX: ffff92dcbc7464b0 RCX: 0000000000000002 > RDX: 0000000000040002 RSI: 38ffff92dc9814cf RDI: ffff92f217722f20 > RBP: ffff92dcbc746418 R8: 0000000000000000 R9: 0000000000000000 > R10: 000000000000035b R11: ffff92efb8dd2091 R12: ffff92dcbc7464a0 > R13: ffff92dbe03a5f29 R14: 0000000000000000 R15: 0ffff92f92f26864 > ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 > #5 [ffffa5308b8c3e78] process_one_work at ffffffff8e0a3b0c > #6 [ffffa5308b8c3eb8] worker_thread at ffffffff8e0a41e7 > #7 [ffffa5308b8c3f10] kthread at ffffffff8e0a93af > #8 [ffffa5308b8c3f50] ret_from_fork at ffffffff8e800235 > > this maps to nvmet_async_event_results. So it looks like this function > access a stale aen pointer: > > static u32 nvmet_async_event_result(struct nvmet_async_event *aen) > { > return aen->event_type | (aen->event_info << 8) | (aen->log_page << 16); > } Can you please explain the test setup ? Is that coming from the tests present in the blktests ? if so you can please provide test number ? _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme