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client-ip=165.204.84.17; helo=satlexmb07.amd.com; pr=C Received: from satlexmb07.amd.com (165.204.84.17) by BL02EPF00021F6E.mail.protection.outlook.com (10.167.249.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.223.9 via Frontend Transport; Tue, 14 Jul 2026 09:30:42 +0000 Received: from satlexmb07.amd.com (10.181.42.216) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.41; Tue, 14 Jul 2026 04:30:42 -0500 Received: from [10.136.35.249] (10.180.168.240) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server id 15.2.2562.41 via Frontend Transport; Tue, 14 Jul 2026 04:30:38 -0500 Message-ID: Date: Tue, 14 Jul 2026 15:00:32 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] sched/core: Fix stale se.load when modifying nice value under sched_ext To: Wanwu Li , , , , , CC: , , , , , , Wanwu Li References: <20260714091327.3-1-liwanwu9113@163.com> Content-Language: en-US From: K Prateek Nayak In-Reply-To: <20260714091327.3-1-liwanwu9113@163.com> Content-Type: text/plain; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: fGx3QzQ8sk6RTk3bD9EHzylM1Nm1FABYrcwmRc7MNwZwnl/sheb13nGxr+qaWNptMZyA/Q+Ycj3zG/1h0y05FUTXBxFgkWjgcJcz8hiGZp5PhhM1LhT0JV1gOrLB6QKr3R7fIb91KPjrgrB9fAPP1r4rh5hNrgWZQDixB/LJ8o+g5HQQU2tHS5G+Y1GL8aLtL/qFjc3bJ0GXoZw4+3Zc15nT9Krxr3FOIoqUSnwL2ogwqtBkPgmi+8faJ6hHTRDhVZo+3yfwgfZuxZwbGO/0XMhOnyGVYGHFeGRBCPSnxEy6SfqxRlOJrRXqFnr39J+tnn9vXMoVh5kkXjExIO5me1MlE7f8M7jItbaCccDc6qBfXWeh3Q83tp5/L5yaiWyFnElyou1+M/pXNB4j6R9w7OeLRXQ1oPJ8D+uePu8ZBKFI1AT1r17b+Ne1TVTeOy24 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Jul 2026 09:30:42.6253 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d35ab6a0-dbe6-46ec-3bd7-08dee18a9354 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF00021F6E.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR12MB5851 Hello Wanwu, On 7/14/2026 2:43 PM, Wanwu Li wrote: > [You don't often get email from liwanwu9113@163.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] > > From: Wanwu Li > > When a task's nice value is modified while running under sched_ext > scheduling class, set_load_weight() calls reweight_task() which only > updates static_prio but leaves p->se.load unchanged because sched_ext > does not use it. After switching back to CFS, the stale se.load leads > to incorrect load weight calculation. > > Fix this by explicitly refreshing p->se.load for sched_ext tasks after > calling reweight_task(). > > Fixes: d32960528702 ("sched/fair: set_load_weight() must also call reweight_task() for SCHED_IDLE tasks") > Signed-off-by: Wanwu Li Isn't this solved in https://lore.kernel.org/lkml/20260528131238.3879110-1-quzicheng315@gmail.com/ -- Thanks and Regards, Prateek