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 4ECB1237713; Tue, 10 Mar 2026 01:18:54 +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=1773105534; cv=none; b=iN+vKKarAohkYMnMHrCHYjxUETd45s7vm75BaXPJxCphNkFWCiKdeR6oW5q3czk4aYz6gC/cg5gKcy5axdCf59Xy2th1UcHQjusylp+oannDTNlORM8++wy0n4LfbalyF2fODL0GevIR5WmF38aQrhwOmHx3mz1hVjlz1ySI3tI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773105534; c=relaxed/simple; bh=SQ4/fjfjflp1EUPnzqjAlgVLW9wEvvMMflNH0Xb3gn4=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References; b=MqfIDGVlx9xlBXQQmtI/lihLxkCrIs5a5fd89PN8pMhX7HVRmBDndL9A+DCqeM0/y1triDk2PiGV4kZt9/vGi5ZT+Srdd/77qThbv7zXy+wP/MxQF2awC04wCe3LukmjWgVQ2HDEAiOMb72IFUDE3aU0JIUMEweLbf6StJJMqxo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LO3EZgPC; 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="LO3EZgPC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BC28FC4CEF7; Tue, 10 Mar 2026 01:18:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773105533; bh=SQ4/fjfjflp1EUPnzqjAlgVLW9wEvvMMflNH0Xb3gn4=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=LO3EZgPCmX/HdbwZVHI4VX25KMxFPyiKuVfXrWQ5Fv0arUqtoMvVdkMA+3+CUZnR1 HlvTZQL9gdxv3xVmRPetz0DsMjuiGgdkoxxpnz+XmZrBHlbyDl3zENo+nVWN2VYkxJ /xxwo88GqbQ8COCgflkhbfdOuZ5YCisCdT4pNuTBetK+OBg9KRhtl3NA+qozvAFnIT QyfjtGV17oJWSgr5Mcng69bs5jqrXKfEVZtMosLot49V1zis0rYJlOzrNMpmfvRbgL hdSpPnP3fdsSq1rqE2L4XnJ1qFCcFSud0GhDm7YNPKJNbDAIn80orGPWaEspm7BL53 oAUohbpbtKraA== Date: Mon, 09 Mar 2026 15:18:52 -1000 Message-ID: From: Tejun Heo To: Cheng-Yang Chou Cc: sched-ext@lists.linux.dev, void@manifault.com, arighi@nvidia.com, changwoo@igalia.com, jserv@ccns.ncku.edu.tw, Emil Tsalapatis , linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/1] sched_ext: Fix deadlock in scx_claim_exit() by deferring descendant propagation In-Reply-To: <20260309163025.2240221-1-yphbchou0911@gmail.com> References: <20260309163025.2240221-1-yphbchou0911@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Hello, Thanks for the report. I posted a fix series which takes a different approach as deferring descendant propagation breaks the forward progress guarantee: http://lkml.kernel.org/r/20260310011653.2993712-1-tj@kernel.org Thanks. -- tejun