From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 09C4AEAE7; Fri, 26 Sep 2025 16:48:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758905301; cv=none; b=krWJcDiV8s2WNOld/9ddR/yJraWWLrMkecnIE5GEQdnyB+k0w+LQbAETwqhXLJys51XtXt7XoBz5jAAvqYpQiYc1LGnF184Y3nh0U/HXd0eMz2XjY6SCe+GO6hkubht/z75md7xKYIWgWHCajKd2H6GQOHZtVICuxNUUHdFSaOY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758905301; c=relaxed/simple; bh=aYe63XxFo5QK5aUoNElZrceNs4q+2bbOZSo6fH9A2yE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=QOAYRIegP4nxoyXfmNGN3167QQr9c4WegWkqkgmTfqtf1jkF0pftPcJwGBf6MhKKwT1uAhLCpOCPj4MrncSqi6q+B6qP0AsiWA/Pt+ElydG8O3tdVrjvjaeCk7/Ffvzxh3JdFrHnBcyAFgwso9MlENfbN4dk9CbPEeNG2WRJ8Cs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=oKBeNyTf; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="oKBeNyTf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 71EDDC4CEF4; Fri, 26 Sep 2025 16:48:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758905300; bh=aYe63XxFo5QK5aUoNElZrceNs4q+2bbOZSo6fH9A2yE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=oKBeNyTfZoeAbJGWR81rox3ej+WWPKIvKoyNEPK7NSjlkDGjSMTL3/5UK5wwozUhG CCH/ppGVSt9l985fXQQP1fBIGCEr/ecyaodXtxHBn8IhMIVarxoRf4K6E9LPNuyCtd FAvm1R2qAt9JJtMyqzjZVzZ6dyiQLsbYN5hVL+BkxfGtA54Hx7P2ChCQnjwHx9WvVr /iteW81eOhBYpgTqZe6lEsbI5lb2MnudAVS55QTckba4z7sVxXxcbCT4sTR3xv75Kc +/RJDS1UnxncAk1yMAWmdtnaRgSdvOY/dPX8+p6lHcRYARcuFylrSBr7Zuw2zCXFDy qrCiiKtc+A5HA== Date: Fri, 26 Sep 2025 06:48:19 -1000 From: Tejun Heo To: Peter Zijlstra Cc: linux-kernel@vger.kernel.org, mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, longman@redhat.com, hannes@cmpxchg.org, mkoutny@suse.com, void@manifault.com, arighi@nvidia.com, changwoo@igalia.com, cgroups@vger.kernel.org, sched-ext@lists.linux.dev, liuwenfang@honor.com, tglx@linutronix.de Subject: Re: [PATCH 12/14] sched: Add shared runqueue locking to __task_rq_lock() Message-ID: References: <20250910155809.684653538@infradead.org> <20250912115459.GZ3289052@noisy.programming.kicks-ass.net> <20250915083815.GB3289052@noisy.programming.kicks-ass.net> <20250925083533.GW4067720@noisy.programming.kicks-ass.net> <20250926095934.GD4067720@noisy.programming.kicks-ass.net> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250926095934.GD4067720@noisy.programming.kicks-ass.net> On Fri, Sep 26, 2025 at 11:59:34AM +0200, Peter Zijlstra wrote: > On Thu, Sep 25, 2025 at 11:43:18AM -1000, Tejun Heo wrote: > > > Can you point me to the RT interaction issue? > > https://lkml.kernel.org/r/fca528bb34394de3a7e87a873fadd9df@honor.com Ah, that one. Thought there was another RT proper issue. That's the one which can be solved by having post-pick_task() hook. Thanks. -- tejun