From nobody Tue Jun 28 11:38:59 2022 X-Original-To: freebsd-xen@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id EE558860D00 for ; Tue, 28 Jun 2022 11:39:14 +0000 (UTC) (envelope-from prvs=171720f04=roger.pau@citrix.com) Received: from esa3.hc3370-68.iphmx.com (esa3.hc3370-68.iphmx.com [216.71.145.155]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mx1.hc3370-68.iphmx.com", Issuer "HydrantID Server CA O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4LXN0d4lWWz3PHB for ; Tue, 28 Jun 2022 11:39:13 +0000 (UTC) (envelope-from prvs=171720f04=roger.pau@citrix.com) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=citrix.com; s=securemail; t=1656416353; h=date:from:to:cc:subject:message-id:references: in-reply-to:mime-version; bh=MX2Ea28VMxfqw3owlk/KxtbUFjLgoxbWrOH8HHFjW5o=; b=gNtlcDQfkFk4rTWNYjgv83tp20eo3NZoF4zD7hr7Hw8EBGznoTWV88kR 568U/csVfc7YqMUZNpPPy8d/FWwCcLdHbg0zwwz7Qt8VEc6Jf0XNiuCcp spJzM/XWrhrsVlkc5qLJk3esFSEuY8gdPQAEQ9qHSi3Ec2GUb8rOBOIB1 U=; X-IronPort-RemoteIP: 104.47.59.171 X-IronPort-MID: 74576258 X-IronPort-Reputation: None X-IronPort-Listener: OutboundMail X-IronPort-SenderGroup: RELAY_O365 X-IronPort-MailFlowPolicy: $RELAYED IronPort-Data: A9a23:i43AM6BJxHEHMxVW/3Liw5YqxClBgxIJ4kV8jS/XYbTApG9zgzYCz jYfCmDUPa6Na2L3KNwiaYzk90hT7JTRzYQyQQY4rX1jcSlH+JHPbTi7wuYcHM8wwunrFh8PA xA2M4GYRCwMZiaA4E/raNANlFEkvU2ybuOU5NXsZ2YgH2eIdA970Ug5w7Bj0tYx6TSEK1jlV e3a8pW31GCNg1aYAkpMg05UgEoy1BhakGpwUm0WPZinjneH/5UmJMt3yZWKB2n5WuFp8tuSH I4v+l0bElTxpH/BAvv9+lryn9ZjrrT6ZWBigVIOM0Sub4QrSoXfHc/XOdJFAXq7hQllkPh35 4wK5M3vZjsSO5XqqvY2QQEHMXhxaPguFL/veRBTsOS15mifKT7A5qsrC0s7e4oF5uxwHGdCs +QCLywAZQyCgOTwx6+nTu5rhYIoK8yD0IE34yk8i22GS6t3B8mcGs0m5vcBtNs0rtpJEvvEI dIQdBJkbQjaYg0JMVASYH47tLj02yahKWAIwL6TjbIw4XmO8hJJ6ZrGLsv3Z97SSeFwn0nN8 woq+Ey8WHn2Lue3wyeF6HWzrunBlyjyXMQVDrLQ3vBwjVCZ3WBWGBAQfVWhrPSzkUL4XMhQQ 3H44QIrpKk2sUCuEN/0WkTipGbe50FFHd1ND+c99QeBjLLO5BqUDXQFSTgHb8E6sMgxRnoh0 Vrhc87VOAGDeYa9ERq1nop4ZxvrUcTJBQfuvRM5cDY= IronPort-HdrOrdr: A9a23:YIId66xAWY3a+Q360uNZKrPxyeskLtp133Aq2lEZdPULSKGlfp GV9sjziyWetN9wYh4dcB67Scy9qFfnhOZICOgqTM6ftWzd1FdAQ7sD0WKP+UyCJ8S6zJ8n6U 4CSdkDNDSTNykcsS+S2mDRfbcdKZu8gcaVbI/lvgpQpGpRGsVdBmlCe2Sm+hocfng9OXN1Lu vq2uN34x6bPVgHZMWyAXcIG8DFut3wjZrjJToLHQQu5gWihS6hrOeSKWnQ4j4uFxd0hZsy+2 nMlAL0oo2lrvGA0xfZk0ve9Y5fltfNwsZKQOaMls8WADPxjRvAXvUWZ5Sy+BQO5M2/4lcjl9 fB5z8mIsRI8nvUOlq4pBP8sjOQogoG2jvH8xu1kHHjqcv2SHYREMxan79UdRPf9g4JoMx8+L gj5RPVi7NnSTf72Ajt7dnBUB9n0mCup2A5rOIVh3tDFaMDdb5qq5AF9k89KuZLIMvD0vFpLA BSNrCT2B4PGmnqLkwx/1Mfi+BEZ05DUitvGSM5y4yoOzs/pgEL86JX/r1dop46zuNCd3B13Z W6Dk1WrsA+ciY3V9MJOA5Te7rCNkX9BTTxDUm1HXPLUIk6BlOlke+G3Fxy3pDjRKA1 X-IronPort-AV: E=Sophos;i="5.92,227,1650945600"; d="scan'208";a="74576258" Received: from mail-dm6nam12lp2171.outbound.protection.outlook.com (HELO NAM12-DM6-obe.outbound.protection.outlook.com) ([104.47.59.171]) by ob1.hc3370-68.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 28 Jun 2022 07:39:05 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=hd9WtBhitvnaAxpGW86cx7fdLc7r0u/s5TW05Fc1j7GH6gE+55npOynzEE2/rTjrEWErLrtQEnLQ9JzDNyCR0gTTQeKm+Z5I2lX1xizjJufdZbI1kHOLRu9sJiO5VKExrp+44Oj1aRDeUArKmXNTubZKRfoqMXzaQNyaRq+JTvBD07NsIYpwfzH7wk9KoELkmX/AfaPPEdKsRpc5lmfAUinScJtrUFTJkdF33qVETYaEgpg2MvZaclvwWLLKe6Lyx0ckGXThzQoysPvwdQZsfEgI/w2ppE47EW3chCWJiUfRYHPSq8YEvhd+I42opIVKj4pIxjJtdWKzRdg51PHJWQ== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=A6XOuLUMAOj4k0x8ZtgJGEoX8fDPZ1I50dmf2Bp8gfs=; b=iCBOfhCaBDheBsV6PjvVxWBQa59QiYy8MYX8gkhPiNuNxNYsrUr4Mvlv61k4EVFID7Rs/HhAVqK+8Wu6PoEmXH5ntRk6Mjk7mvcx5wJvz3Gz4Ef1OqIfEdvv5Yw9bky9uyWtbh2QAmjmI+D9DrkUqPkFIkmJ0qVZeCPOK+UrwOO/7bePT188hP/vqylTychGbNIHtlCPPXZ1eRnR/phWjuFrLOx9quTuYSpvCofT0BkxobBmfYPajmtYN/r35cUOHtP5T7iv+2s3u2C/ULt1AAVmrOJitFuuwQi1M6HEiJd/EuR6f/ygVlarSGGS1Ssr2Jpah5Fx8tRo8rgHOaC+qg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=citrix.com; dmarc=pass action=none header.from=citrix.com; dkim=pass header.d=citrix.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=citrix.onmicrosoft.com; s=selector2-citrix-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=A6XOuLUMAOj4k0x8ZtgJGEoX8fDPZ1I50dmf2Bp8gfs=; b=DxsoU34DFO9gX67iuWUPReCjashFawqO+6sLKRpUm8MAnaPWvrBtrhry4I1NOFUoWeu5ZecIZaUxkfn2PgCDvDWG9ufFgFnkF+ipSHX3vyKMx28d9nZLWAbAObNNzshvc0TBD6uhhUQExJSxQALpz5y75nlXS5dWATlXjRGiUbM= Received: from DS7PR03MB5608.namprd03.prod.outlook.com (2603:10b6:5:2c9::18) by MW5PR03MB6981.namprd03.prod.outlook.com (2603:10b6:303:1a8::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5373.16; Tue, 28 Jun 2022 11:39:03 +0000 Received: from DS7PR03MB5608.namprd03.prod.outlook.com ([fe80::40af:d5f4:95eb:d534]) by DS7PR03MB5608.namprd03.prod.outlook.com ([fe80::40af:d5f4:95eb:d534%7]) with mapi id 15.20.5373.018; Tue, 28 Jun 2022 11:39:03 +0000 Date: Tue, 28 Jun 2022 13:38:59 +0200 From: Roger Pau =?utf-8?B?TW9ubsOp?= To: Brian Buhrow Cc: freebsd-xen@freebsd.org Subject: Re: Some kind of race condition in adding and removing domu's causes vm zombies Message-ID: References: <202206240130.25O1Uul3002911@nfbcal.org> Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <202206240130.25O1Uul3002911@nfbcal.org> X-ClientProxiedBy: LNXP265CA0060.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:5d::24) To DS7PR03MB5608.namprd03.prod.outlook.com (2603:10b6:5:2c9::18) List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-xen List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-xen@freebsd.org X-BeenThere: freebsd-xen@freebsd.org MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 06891347-deba-41cb-9f50-08da58facd1d X-MS-TrafficTypeDiagnostic: MW5PR03MB6981:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DS7PR03MB5608.namprd03.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230016)(7916004)(4636009)(136003)(396003)(376002)(366004)(346002)(39860400002)(186003)(66476007)(316002)(33716001)(66946007)(83380400001)(5660300002)(8676002)(6486002)(38100700002)(9686003)(478600001)(41300700001)(82960400001)(86362001)(85182001)(4326008)(6666004)(6506007)(6512007)(8936002)(66556008)(2906002)(6916009)(26005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?c0lta0srcW9SNk9rWEpyNU1GeVhkYTZ4dktBTFBHR0dhc3lpeFA4eERlRVRl?= =?utf-8?B?VExYVWRaZGF4NDdIVW1HMWN6WlpQLzlraGIvNll0WnZKVVhLOERlWmRpZzVZ?= =?utf-8?B?WkxvNGNqTUtPTkk3RE94blV4RXkrR3NsZm9lWGZOYVBRVDlUSmlyVmF3MWdr?= =?utf-8?B?KzhZNW02aEQrbVRBQUx0dUE2cFJYNVBiRmNjOUlXYjd4QythYWNQMVZTZjB1?= =?utf-8?B?V0Izbk1iMkNXa3Q4Y1diWUwvbnZPbHh0a1FGQmYwRmdrSzVsMWNrTXZoa3ZH?= =?utf-8?B?azkzTkdGaXpMSk1MVklDSXArY3VRakVGditZYVJHaUdnS0ljN2x5Q21JQW5G?= =?utf-8?B?VDMveE9zeVdSZmZZVldRZlZCdW5SRVlRSkErZ1BJRXhlejZZSzdMV2lreTBC?= =?utf-8?B?U05SSnd0OVZJR0Q0T0pObGJyOFNLdnJDTGRHZ0ZMbHpveHJGRmM0S1Nod1hs?= =?utf-8?B?R0FLbzJrRm8wSERSYzRpVGRqZkZqTUl1QU5NR0dJZ2pFRk5BUTFLQ2ZnbURE?= =?utf-8?B?LzBtVjFHNThnRVo2cTc3QWlTUWxhUkRVSGNFcERONVFDWGhvSURZVmcxTndD?= =?utf-8?B?YitNNlp6eEZpWng4ODhMeE9TUi9kSVBkVnhOdXlmaG8rdXhzSTNGaEtENXlV?= =?utf-8?B?eFN3YndwWU9ndENnaUg2Rmt0RGdHb2dtSjMxWURocnIyN255ZUczbXhadjhT?= =?utf-8?B?ZVRvMVhHaW0rdkV1amtVYkJ1b2hnVVVxOFc3U0FXaW9kQTVqdWZsVkNiWk1V?= =?utf-8?B?Vkc1THZURXJEMjl6TnM4SWE0ZlBDTlRBK010Z0VzSUhDQUdHbjdnTEhlR3pp?= =?utf-8?B?cmF5RjluME56T3FmSEVRN2psUkVRM0F1bDMwU0YwZTJnSi80WGl0WENwLzhi?= =?utf-8?B?YUZWWnRHenNVNFZtVXh2dFBVbnJzV1J3S0J4eExXZmFIREhoNFJwZE5tUWF2?= =?utf-8?B?VjQ0NGd3MlJTWkFScFZMbHdGbVNTMDQvV3NYcHRhazF4MUpETU4yM1hJdHNN?= =?utf-8?B?S3VIM1FHS2kxSkVFdUk5RUxMQTg2ZnNQcS8rU0pYR290NHVzSk9RSmNydlBU?= =?utf-8?B?dUxaL3F2dzdNZ1ViRFVtV2tZNllOY0NjbG1nOGlMa1duUEZBVlBqV0ZSMkFW?= =?utf-8?B?QW5keS9ZbWtFclRlcXh5QkRTWmpHT2lVSi85UjVVcDgySVdJcDJaZncvREY5?= =?utf-8?B?K3NGMmlITmFaSHMvV1hVZStIZkhVTUZVVGN4QTZXNkFQV1RhMkFRSW8xZHhz?= =?utf-8?B?L2IyMGsvQlppaTdBeGErbjBrT3E5TS9pODNLMUNJTHI1Z1R1U3RCYmIwdkl6?= =?utf-8?B?T3lTS2ZUc2xFaHZRUnVEdTZ0TEFUc3pWVlA1NDc4NzJYWkxzWWtmMHd3SjJ4?= =?utf-8?B?Q2tmMGNha2pUeHpMRjJSRGZlMExLMHA5TUJhd2xBRmpZMTFJTUJCcTFiV1Ay?= =?utf-8?B?b0xWR2I4bm5hWk0xKytDNUxlNE9adkZDam5aREJZM1FkWDZLWXF3Nm51bitV?= =?utf-8?B?T0EvTGpnMzk5UGdHMFZqY0VIQ1BTa1J1NEsrT3ZLM0h5Q0VSVmUvZHpXZVhP?= =?utf-8?B?UkovMDUvZXlmRnN1SWUvdGtEbDJzT3I0dE0xSWxaK0RoK083VGx4RXZNYW9Q?= =?utf-8?B?TjVFWTE3UVZYT2xJQjI4VnRCbW5FbnVtdkFaSnhHRDd6Z0RUdHR0bndhcWJP?= =?utf-8?B?aXFFWWhvcXZKK1RINDFoOXkrZ0pYa0JHa2xtQnNHRU9DdkZnUFhSMzA1SHgz?= =?utf-8?B?QWZnZUlPNTNqMVlvQ3gzbUdlZHViTTdrREdxdFJINXh6VDREU2F2enIwdE5N?= =?utf-8?B?S3RFYlBMYVVycUxSY2UydjhHS1JyRkE0bGZKNkIxOFk0WlBxOXZpa1dwU3R5?= =?utf-8?B?Z29tMnl3TXAxWVpVbDVHT1VmN1pNSkdjK0l0enVXZGlBc3gyMVFMZWl5TGhl?= =?utf-8?B?eDJyUDZSVkdoY3FrdjF1VmFoMFZBbWhrZFNONEdZakZ1MlpZSStEWTR1RGda?= =?utf-8?B?OGZld2FRNXFyWmxMM1ZMV1h4YzI4N1Z3TWNNNXJibU5ua2FCWVVFM0lvQkJa?= =?utf-8?B?OWtUVnNwNm1OSlI1VG9qOHVQS2tvWkFmaVFXdW1BR05zdkxEdFpYdXdVODFB?= =?utf-8?B?YmplaWdsNnJKTDgwdGFqZjR3ZnA4S2FNc24wWXdJZzB3KzNYdnVWcFg3OXpj?= =?utf-8?B?d3c9PQ==?= X-OriginatorOrg: citrix.com X-MS-Exchange-CrossTenant-Network-Message-Id: 06891347-deba-41cb-9f50-08da58facd1d X-MS-Exchange-CrossTenant-AuthSource: DS7PR03MB5608.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Jun 2022 11:39:03.5184 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 335836de-42ef-43a2-b145-348c2ee9ca5b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: t41DOJFfRSic0Gbhx7hdsh3Su4M147Vb8aNr0fTnn37I7rWgafhW55gJnBl80wtyp19jh3aNbkZGBhwe6/U8bQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW5PR03MB6981 X-Rspamd-Queue-Id: 4LXN0d4lWWz3PHB X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; dkim=pass header.d=citrix.com header.s=securemail header.b=gNtlcDQf; dkim=pass header.d=citrix.onmicrosoft.com header.s=selector2-citrix-onmicrosoft-com header.b=DxsoU34D; arc=pass ("microsoft.com:s=arcselector9901:i=1"); dmarc=pass (policy=reject) header.from=citrix.com; spf=pass (mx1.freebsd.org: domain of "prvs=171720f04=roger.pau@citrix.com" designates 216.71.145.155 as permitted sender) smtp.mailfrom="prvs=171720f04=roger.pau@citrix.com" X-Spamd-Result: default: False [-6.20 / 15.00]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+exists:216.71.145.155.spf.hc3370-68.iphmx.com]; RCVD_DKIM_ARC_DNSWL_MED(-0.50)[]; RCVD_COUNT_THREE(0.00)[4]; RCVD_IN_DNSWL_MED(-0.20)[216.71.145.155:from]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[citrix.com,reject]; DKIM_TRACE(0.00)[citrix.com:+,citrix.onmicrosoft.com:+]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:16417, ipnet:216.71.145.0/24, country:US]; FROM_NEQ_ENVFROM(0.00)[roger.pau@citrix.com,prvs=171720f04=roger.pau@citrix.com]; ARC_ALLOW(-1.00)[microsoft.com:s=arcselector9901:i=1]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[citrix.com:s=securemail,citrix.onmicrosoft.com:s=selector2-citrix-onmicrosoft-com]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_SHORT(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; FORGED_SENDER_VERP_SRS(0.00)[]; DWL_DNSWL_LOW(-1.00)[citrix.com:dkim]; TO_MATCH_ENVRCPT_SOME(0.00)[]; MLMMJ_DEST(0.00)[freebsd-xen]; MID_RHS_NOT_FQDN(0.50)[] X-ThisMailContainsUnwantedMimeParts: N On Thu, Jun 23, 2022 at 06:30:56PM -0700, Brian Buhrow wrote: > hello. I don't have a lot more details on the issue, but under xen-4.15 and xen-4.16 with > freeBSD-12 and FreeBSD-13, it's pretty easy to end up with zombie domu's that are unkillable > and unrestartable. Even worse, the block devices associated with these not-quite-gone domus' > are unusable with other domu's without an entire system reboot. > > How to reproduce: > > 1. Shutdown a vm that's currently running, I'm using NetBSD, but FreeBSD domus' wil > demonstrate this behavior as well. > > > 2. If auto-restart is set in the domu's conf file, the domu will restart with a new domain id. > > 3. Just as the newly restarted domu is coming up, issue: > xl destroy > > You may see output like the following: > > root# xl destroy 20 > libxl: error: libxl_device.c:1111:device_backend_callback: Domain 20:unable to remove device > with pa > th /local/domain/0/backend/vbd/20/768 > libxl: error: libxl_device.c:1111:device_backend_callback: Domain 20:unable to remove device > with pa > th /local/domain/0/backend/vif/20/0 > libxl: error: libxl_domain.c:1530:devices_destroy_cb: Domain 20:libxl__devices_destroy failed > > Now, issue: > #xl list > (null) 20 0 1 --p--d 2083.7 > > The work around I've found for this issue is to shutdown the domu with the -h flag, causing the > system to wait for a final keypress on the console before rebooting. Then, while it's waiting, > issue the xl destroy command on the old, waiting, domain ID. > > this work around will prevent the issue, but it's my view that I shouldn't be able to wedge the > destruction process in this way such that the entire machine needs to be restarted. Being able > to do this makes the system rather fragile. Hm, I don't seem to be able to reproduce this on HEAD. Could you give a try to a HEAD kernel and see whether you can reproduce? (keep the same userland, that should be fine). Thanks, Roger.