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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 B4298C33CB1 for ; Wed, 15 Jan 2020 11:02:52 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 7F0DA2187F for ; Wed, 15 Jan 2020 11:02:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=amdcloud.onmicrosoft.com header.i=@amdcloud.onmicrosoft.com header.b="s/tQLUT3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7F0DA2187F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=amd.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=amd-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5412A6E90E; Wed, 15 Jan 2020 11:02:52 +0000 (UTC) Received: from NAM04-CO1-obe.outbound.protection.outlook.com (mail-eopbgr690051.outbound.protection.outlook.com [40.107.69.51]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7F54A6E90E for ; Wed, 15 Jan 2020 11:02:51 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=nFEr/soZMKwgONQGQAUAMrSNaSDSrrLFf/+GARWfboOyie114txmtPwd0fSq0fFANgfuzOOD/cOyuu4jFQyDwX6VXzYrseWnBsMUoBf4n9eHx/rcfut50rmCZtfW5OsE7jTF3FYTxfVJOyhhhUSW01h9FXMA7AQftMCYO8jnwqHGuw6wdhtaVVK7JiLfyvqEWuv4oXgS2vIbf2MGJ70TFL6oQyC7jV/mntslH2d9+hJfXmiex7tNupXguKcGyR7fI/yew1/1YMxZ+GE30uvgX8wNVoEOhwk/uxOywyMihdlE7vjFS5sGGYBTygE/fNOZLD+XbFsTOwg9rvjnixlJOg== 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=SSWGvqywdfubeo6FTbRZ7chUx6gHCLlEOYpgq3weGKA=; b=gkgOizaEbkQqql3y5agXLQV9Yyn6aMcT38djn06G/qmQIrsWHxnzB/r7zb3pVmP0aubxhemNEP2weROOve2dUyEozDhKqsmCJXev2aG1ex6tiI30oPgQHCrt95GsDYHiZOqd3MosSPRFibDeje/gfcbkZ15gzVDxqTyk66b5rscup41Dewy4wRB50ryBGuEanafGMWpVZ4aEudIK/lNN36Hwi2LKoOCSXBWJLB0bvHhe84gXIQ2BPT9SyKki4yipufjaoPF2d7o11eqp/ooEoljiyueLmqMjDbNBx7BLFW1rKGsuKYMNwyqf115elLM75b3DDQCLegYmHqfwoum1uQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=amd.com; dmarc=pass action=none header.from=amd.com; dkim=pass header.d=amd.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector2-amdcloud-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=SSWGvqywdfubeo6FTbRZ7chUx6gHCLlEOYpgq3weGKA=; b=s/tQLUT3KLiTgn9fKesv8mSamGKkNYolSAIzUD/h2fXywyTzfmD2oEK1fs+y8KOvsonazUcgPf8S5uTdDlRKazXollJB8BmEVWaVKS01/xsu3RlvzqN7U3sGjoQVsHQPokwEQ3Zl+9xK56RL3/6drmKATJ/Uno7Y94F7GZs+8Cw= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Nirmoy.Das@amd.com; Received: from DM5PR12MB2376.namprd12.prod.outlook.com (52.132.143.139) by DM5PR12MB1786.namprd12.prod.outlook.com (10.175.91.14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2623.13; Wed, 15 Jan 2020 11:02:50 +0000 Received: from DM5PR12MB2376.namprd12.prod.outlook.com ([fe80::c06c:24da:d4c5:5ee3]) by DM5PR12MB2376.namprd12.prod.outlook.com ([fe80::c06c:24da:d4c5:5ee3%6]) with mapi id 15.20.2644.015; Wed, 15 Jan 2020 11:02:50 +0000 Subject: Re: [PATCH] drm/scheduler: fix race condition in load balancer To: christian.koenig@amd.com, Nirmoy Das , amd-gfx@lists.freedesktop.org References: <20200114154339.3519-1-nirmoy.das@amd.com> <5deb3805-f7e8-3d0d-4259-a3be1c5d3cf5@gmail.com> From: Nirmoy Message-ID: <862ad550-082d-7ece-1d4d-99801ab10428@amd.com> Date: Wed, 15 Jan 2020 12:04:04 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.1 In-Reply-To: <5deb3805-f7e8-3d0d-4259-a3be1c5d3cf5@gmail.com> Content-Language: en-US X-ClientProxiedBy: AM0PR0102CA0048.eurprd01.prod.exchangelabs.com (2603:10a6:208::25) To DM5PR12MB2376.namprd12.prod.outlook.com (2603:10b6:4:b9::11) MIME-Version: 1.0 Received: from [IPv6:2003:c5:8f2b:bb00:33a:7193:ff09:7830] (2003:c5:8f2b:bb00:33a:7193:ff09:7830) by AM0PR0102CA0048.eurprd01.prod.exchangelabs.com (2603:10a6:208::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2644.19 via Frontend Transport; Wed, 15 Jan 2020 11:02:37 +0000 X-Originating-IP: [2003:c5:8f2b:bb00:33a:7193:ff09:7830] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 1f7867d3-e960-4643-4023-08d799aa75e5 X-MS-TrafficTypeDiagnostic: DM5PR12MB1786:|DM5PR12MB1786: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8273; X-Forefront-PRVS: 02830F0362 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10009020)(4636009)(136003)(396003)(39860400002)(346002)(376002)(366004)(189003)(199004)(16526019)(478600001)(186003)(6486002)(81166006)(31696002)(5660300002)(8676002)(316002)(6666004)(31686004)(81156014)(66946007)(52116002)(2616005)(4326008)(53546011)(66476007)(2906002)(36756003)(66556008)(8936002); DIR:OUT; SFP:1101; SCL:1; SRVR:DM5PR12MB1786; H:DM5PR12MB2376.namprd12.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; Received-SPF: None (protection.outlook.com: amd.com does not designate permitted sender hosts) X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 0ZfontPshSInM/biV3y8S1zcx23idn5vHoKUbqtZYOUo7t9BSW0IPtFcqJM+L+WGTm953ywYzPmRV82aoctq3rb7Y0tlO2fdQyp8/MbRvRY/RPMy5r9hrNc9R2esSidotmARmaYxh3Kr60hwLaANCShsQG49sPJXIu5nb81hdiZkSghiEO4YUHSvCpUECCrM54/+F5e8OUEUGsxYhvo4TLBFVvBPlyNT8rSXNof6E7DIpU4wE5Xz9i2684l/br1L+mqN117TIp7wpM6RAGqMafLzh/pvmBDjJTpqmwr0zbaNPLZYQX9GT+jMOGHjEuC0IsB/bpi8OrGK3b5suXpqJWmxMyvGL71OPJmcUb93gTDbATzUIYlFD85IEtAsRXTzGMm3izlVPW1MSaTTBjQZAURGAwgFJOIOulNLMwDxgwl+YlXUITeDzcereTzMzNUw X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1f7867d3-e960-4643-4023-08d799aa75e5 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Jan 2020 11:02:49.8882 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: Hkllpe018FXiYVKOIGllvCrHjOkoPAEim3R707rIzjHsXVMUOXFeGN+5iyILkSApc5DvjifzOUQTeJQe9jTqRQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR12MB1786 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alexander.deucher@amd.com, kenny.ho@amd.com, nirmoy.das@amd.com, pierre-eric.pelloux-prayer@amd.com Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" SGkgQ2hyaXN0aWFuLAoKT24gMS8xNC8yMCA1OjAxIFBNLCBDaHJpc3RpYW4gS8O2bmlnIHdyb3Rl Ogo+Cj4+IEJlZm9yZSB0aGlzIHBhdGNoOgo+Pgo+PiBzY2hlZF9uYW1lwqDCoMKgwqAgbnVtIG9m IG1hbnkgdGltZXMgaXQgZ290IHNjaGVkdWxlZAo+PiA9PT09PT09PT3CoMKgwqDCoMKgID09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KPj4gc2RtYTDCoMKgwqDCoMKgwqDCoMKgwqAg MzE0Cj4+IHNkbWExwqDCoMKgwqDCoMKgwqDCoMKgIDMyCj4+IGNvbXBfMS4wLjDCoMKgwqDCoCA1 Ngo+PiBjb21wXzEuMS4wwqDCoMKgwqAgMAo+PiBjb21wXzEuMS4xwqDCoMKgwqAgMAo+PiBjb21w XzEuMi4wwqDCoMKgwqAgMAo+PiBjb21wXzEuMi4xwqDCoMKgwqAgMAo+PiBjb21wXzEuMy4wwqDC oMKgwqAgMAo+PiBjb21wXzEuMy4xwqDCoMKgwqAgMAo+Pgo+PiBBZnRlciB0aGlzIHBhdGNoOgo+ Pgo+PiBzY2hlZF9uYW1lwqDCoMKgwqAgbnVtIG9mIG1hbnkgdGltZXMgaXQgZ290IHNjaGVkdWxl ZAo+PiA9PT09PT09PT3CoMKgwqDCoMKgID09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT0KPj4gwqAgc2RtYTHCoMKgwqDCoMKgwqDCoMKgwqAgMjQzCj4+IMKgIHNkbWEwwqDCoMKgwqDC oMKgwqDCoMKgIDE2NAo+PiDCoCBjb21wXzEuMC4xwqDCoMKgwqAgMTQKPj4gwqAgY29tcF8xLjEu MMKgwqDCoMKgIDExCj4+IMKgIGNvbXBfMS4xLjHCoMKgwqDCoCAxMAo+PiDCoCBjb21wXzEuMi4w wqDCoMKgwqAgMTUKPj4gwqAgY29tcF8xLjIuMcKgwqDCoMKgIDE0Cj4+IMKgIGNvbXBfMS4zLjDC oMKgwqDCoCAxMAo+PiDCoCBjb21wXzEuMy4xwqDCoMKgwqAgMTAKPgo+IFdlbGwgdGhhdCBpcyBz dGlsbCByYXRoZXIgbmljZSB0byBoYXZlLCB3aHkgZG9lcyB0aGF0IGhhcHBlbj8KCkkgdGhpbmsg SSBrbm93IHdoeSBpdCBoYXBwZW5zLiBBdCBpbml0IGFsbCBlbnRpdHkncyBycSBnZXRzIGFzc2ln bmVkIHRvIApzY2hlZF9saXN0WzBdLiBJIHB1dCBzb21lIHByaW50cyB0byBjaGVjayB3aGF0IHdl IGNvbXBhcmUgaW4gCmRybV9zY2hlZF9lbnRpdHlfZ2V0X2ZyZWVfc2NoZWQuCgpJdCB0dXJucyBv dXQgbW9zdCBvZiB0aGUgdGltZSBpdCBjb21wYXJlcyB6ZXJvIHZhbHVlcyhudW1fam9icygwKSA8 IAptaW5fam9icygwKSkgc28gbW9zdCBvZiB0aGUgdGltZSAxc3QgcnEoc2RtYTAsIGNvbXBfMS4w LjApIHdhcyBwaWNrZWQgYnkgCmRybV9zY2hlZF9lbnRpdHlfZ2V0X2ZyZWVfc2NoZWQuCgoKVGhp cyBwYXRjaCB3YXMgbm90IGNvcnJlY3QgLCBoYWQgYW4gZXh0cmEgYXRvbWljX2luYyhudW1fam9i cykgaW4gCmRybV9zY2hlZF9qb2JfaW5pdC4gVGhpcyBwcm9iYWJseSBhZGRlZCBiaXQgb2YgcmFu ZG9tbmVzcyBJIHRoaW5rLCB3aGljaCAKaGVscGVkIGluIGJldHRlciBqb2IgZGlzdHJpYnV0aW9u LgoKSSd2ZSB1cGRhdGVkIG15IHByZXZpb3VzIFJGQyBwYXRjaCB3aGljaCB1c2VzIHRpbWUgY29u c3VtZWQgYnkgZWFjaCAKc2NoZWQgZm9yIGxvYWQgYmFsYW5jZSB3aXRoIGEgdHdpc3Qgb2YgaWdu b3JpbmcgcHJldmlvdXNseSBzY2hlZHVsZWQgCnNjaGVkL3JxLiBMZXQgbWUga25vdyB3aGF0IGRv IHlvdSB0aGluay4KCgpSZWdhcmRzLAoKTmlybW95Cgo+Cj4gQ2hyaXN0aWFuLgo+Cj4KX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KYW1kLWdmeCBtYWlsaW5n IGxpc3QKYW1kLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVz a3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9hbWQtZ2Z4Cg==