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Wed, 19 May 2021 11:03:34 +0000 Subject: Re: [PATCH v7 13/16] drm/scheduler: Fix hang when sched_entity released To: =?UTF-8?Q?Christian_K=c3=b6nig?= , =?UTF-8?Q?Christian_K=c3=b6nig?= , dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-pci@vger.kernel.org, daniel.vetter@ffwll.ch, Harry.Wentland@amd.com Cc: Alexander.Deucher@amd.com, gregkh@linuxfoundation.org, ppaalanen@gmail.com, helgaas@kernel.org, Felix.Kuehling@amd.com References: <20210512142648.666476-1-andrey.grodzovsky@amd.com> <20210512142648.666476-14-andrey.grodzovsky@amd.com> <9e1270bf-ab62-5d76-b1de-e6cd49dc4841@amd.com> <34d4e4a8-c577-dfe6-3190-28a5c63a2d23@amd.com> <8228ea6b-4faf-bb7e-aaf4-8949932e869a@amd.com> <53f281cc-e4c0-ea5d-9415-4413c85a6a16@amd.com> <0b49fc7b-ca0b-58c4-3f76-c4a5fab97bdc@amd.com> <31febf08-e9c9-77fa-932d-a50505866ec4@amd.com> <77efa177-f313-5f1e-e273-6672ed46a90a@gmail.com> From: Andrey Grodzovsky Message-ID: <4a9af53a-564d-62ae-25e1-06ca4129857f@amd.com> Date: Wed, 19 May 2021 07:03:31 -0400 User-Agent: Mozilla/5.0 (X11; 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Question is if we can wait blocking here >>> or not. >>> >>> We install a callback a bit lower to avoid blocking, so I'm pretty >>> sure that won't work as expected. >>> >>> Christian. >> >> I can't see why this would create problems, as long as the dependencies >> complete or force competed if they are from same device (extracted) but >> on a different ring then looks to me it should work. I will give it >> a try. > > Ok, but please also test the case for a killed process. > > Christian. You mean something like run glxgears and then simply terminate it ? Because I done that. Or something more ? Andrey > >> >> Andrey > > _______________________________________________ > amd-gfx mailing list > amd-gfx@lists.freedesktop.org > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=04%7C01%7Candrey.grodzovsky%40amd.com%7Cce1252e55fae4338710d08d91ab4de01%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637570186393107071%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=vGqxY5sxpEIiQGFBNn2PWkKqVjviM29r34Yjv0wujf4%3D&reserved=0 > 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=-7.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MSGID_FROM_MTA_HEADER,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 9CF2FC433ED for ; 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Wed, 19 May 2021 11:03:34 +0000 Subject: Re: [PATCH v7 13/16] drm/scheduler: Fix hang when sched_entity released To: =?UTF-8?Q?Christian_K=c3=b6nig?= , =?UTF-8?Q?Christian_K=c3=b6nig?= , dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-pci@vger.kernel.org, daniel.vetter@ffwll.ch, Harry.Wentland@amd.com References: <20210512142648.666476-1-andrey.grodzovsky@amd.com> <20210512142648.666476-14-andrey.grodzovsky@amd.com> <9e1270bf-ab62-5d76-b1de-e6cd49dc4841@amd.com> <34d4e4a8-c577-dfe6-3190-28a5c63a2d23@amd.com> <8228ea6b-4faf-bb7e-aaf4-8949932e869a@amd.com> <53f281cc-e4c0-ea5d-9415-4413c85a6a16@amd.com> <0b49fc7b-ca0b-58c4-3f76-c4a5fab97bdc@amd.com> <31febf08-e9c9-77fa-932d-a50505866ec4@amd.com> <77efa177-f313-5f1e-e273-6672ed46a90a@gmail.com> From: Andrey Grodzovsky Message-ID: <4a9af53a-564d-62ae-25e1-06ca4129857f@amd.com> Date: Wed, 19 May 2021 07:03:31 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 In-Reply-To: <77efa177-f313-5f1e-e273-6672ed46a90a@gmail.com> Content-Type: text/plain; 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Question is if we can wait blocking here >>> or not. >>> >>> We install a callback a bit lower to avoid blocking, so I'm pretty >>> sure that won't work as expected. >>> >>> Christian. >> >> I can't see why this would create problems, as long as the dependencies >> complete or force competed if they are from same device (extracted) but >> on a different ring then looks to me it should work. I will give it >> a try. > > Ok, but please also test the case for a killed process. > > Christian. You mean something like run glxgears and then simply terminate it ? Because I done that. Or something more ? Andrey > >> >> Andrey > > _______________________________________________ > amd-gfx mailing list > amd-gfx@lists.freedesktop.org > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=04%7C01%7Candrey.grodzovsky%40amd.com%7Cce1252e55fae4338710d08d91ab4de01%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637570186393107071%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=vGqxY5sxpEIiQGFBNn2PWkKqVjviM29r34Yjv0wujf4%3D&reserved=0 > 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=-5.0 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MSGID_FROM_MTA_HEADER,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 C5CACC433B4 for ; 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Wed, 19 May 2021 11:03:34 +0000 Subject: Re: [PATCH v7 13/16] drm/scheduler: Fix hang when sched_entity released To: =?UTF-8?Q?Christian_K=c3=b6nig?= , =?UTF-8?Q?Christian_K=c3=b6nig?= , dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-pci@vger.kernel.org, daniel.vetter@ffwll.ch, Harry.Wentland@amd.com References: <20210512142648.666476-1-andrey.grodzovsky@amd.com> <20210512142648.666476-14-andrey.grodzovsky@amd.com> <9e1270bf-ab62-5d76-b1de-e6cd49dc4841@amd.com> <34d4e4a8-c577-dfe6-3190-28a5c63a2d23@amd.com> <8228ea6b-4faf-bb7e-aaf4-8949932e869a@amd.com> <53f281cc-e4c0-ea5d-9415-4413c85a6a16@amd.com> <0b49fc7b-ca0b-58c4-3f76-c4a5fab97bdc@amd.com> <31febf08-e9c9-77fa-932d-a50505866ec4@amd.com> <77efa177-f313-5f1e-e273-6672ed46a90a@gmail.com> From: Andrey Grodzovsky Message-ID: <4a9af53a-564d-62ae-25e1-06ca4129857f@amd.com> Date: Wed, 19 May 2021 07:03:31 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 In-Reply-To: <77efa177-f313-5f1e-e273-6672ed46a90a@gmail.com> Content-Language: en-US X-Originating-IP: [2607:fea8:3edf:49b0:1069:60ba:d67c:3ab3] X-ClientProxiedBy: YTOPR0101CA0062.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b00:14::39) To SN6PR12MB4623.namprd12.prod.outlook.com (2603:10b6:805:e9::17) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [IPv6:2607:fea8:3edf:49b0:1069:60ba:d67c:3ab3] (2607:fea8:3edf:49b0:1069:60ba:d67c:3ab3) by YTOPR0101CA0062.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b00:14::39) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4108.30 via Frontend Transport; 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