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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 DS1PEPF0001709B.mail.protection.outlook.com (10.167.18.105) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9520.1 via Frontend Transport; Tue, 13 Jan 2026 04:12:32 +0000 Received: from satlexmb08.amd.com (10.181.42.217) 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 15.2.2562.17; Mon, 12 Jan 2026 22:12:32 -0600 Received: from [10.136.46.14] (10.180.168.240) by satlexmb08.amd.com (10.181.42.217) with Microsoft SMTP Server id 15.2.2562.17 via Frontend Transport; Mon, 12 Jan 2026 22:12:26 -0600 Message-ID: Date: Tue, 13 Jan 2026 09:42:25 +0530 Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 05/12] sched: Move sched_class::prio_changed() into the change pattern To: Pierre Gondois , Peter Zijlstra , CC: , , , , , , , , , , , , , , , , , , , Christian Loehle References: <20251006104402.946760805@infradead.org> <20251006104527.083607521@infradead.org> Content-Language: en-US From: K Prateek Nayak In-Reply-To: Content-Type: text/plain; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Jan 2026 04:12:32.9157 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 33dd4a47-553c-4312-1e1b-08de5259f9cd 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: DS1PEPF0001709B.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV2PR12MB999074 Hello Pierre, On 1/13/2026 2:14 AM, Pierre Gondois wrote: > Hello Peter, > > It seems this patch: > 6455ad5346c9 ("sched: Move sched_class::prio_changed() into the change pattern") > is triggering the following warning: > rq_pin_lock() > \-WARN_ON_ONCE(rq->balance_callback && rq->balance_callback != &balance_push_callback); Can you check if the following solution helps your case too: https://lore.kernel.org/all/20260106104113.GX3707891@noisy.programming.kicks-ass.net/ -- Thanks and Regards, Prateek