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 F0E2038DDB; Fri, 15 Nov 2024 01:28:18 +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=1731634101; cv=none; b=aSdF4CIEVE9Wpu1J7jl2INwHyrCw5pTwb+Uygb0vy8CjbvrlFY0QM2G6ZNiYGgT5cFULoYKAF9AXPgfCDUhK2D3S2wHb7k+9eI/XKDazb8vQjRbx1iclFt3a56e4A04K+ZZBJ9RPKhw4/3wtiM98gTTwyoYgxR1GmcXxjGwcOoY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731634101; c=relaxed/simple; bh=mBNK/YSrMUfB1C41jB/Z/WgXfU6bbRvm6v5kByx3T3k=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=OJy9Of2vgazHQIhH9Cbc2DwWnQpvp3kWWiViwh0+eCShqND6ASetIgMP9qen/58uDyUdJ5uXeGjGJc9VPc/3GXPZdw3nwugohCYoV/WLT2eUxS3/OXNuVKfv+s59hFhFCYPPtq7bDaAFSJGdcP3rdSm0rrxvvJELIMoKxkPOTaM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WenNt2wL; 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="WenNt2wL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C4301C4CECD; Fri, 15 Nov 2024 01:28:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731634097; bh=mBNK/YSrMUfB1C41jB/Z/WgXfU6bbRvm6v5kByx3T3k=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=WenNt2wLnoQmPzosbwmf/D+J/pegjpn7PJB+L1CiWO/JkL2iHpVPZFcLXjdphSyfU I1YSWIFEy1AXcmr+grCR5glqwxvGnJTgshNHF48DrbkCIPgdplQfDMfW3UwvrVL14y VUoBLWdbJWumENf9APsR9iDl3Jbg4B6UEkTnjc5/yJqbvLo2J7Wyti4P2yQwB07WzU G9QIulKhdxDFE7EQ4H7m42b+sE93u5CijhKUCeNUJpyQeqIBgm6BAAAQ/fRl/6JTuj ee2+09zap33hHhP87jMXUMKniP8lhWZdivcsKCjE9hwHh5WJEzqWs35ITn4JJEI8YM DRupvuJE0UCSQ== Date: Thu, 14 Nov 2024 15:28:16 -1000 From: Tejun Heo To: Chen Ridong Cc: Valentin Schneider , mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, =?iso-8859-1?Q?mkoutny=40suse=2Ecom_=3E=3E_Michal_Koutn=FD?= , linux-kernel@vger.kernel.org, wangweiyang2@huawei.com, cgroups@vger.kernel.org Subject: Re: [PATCH] freezer, sched: report the frozen task stat as 'D' Message-ID: References: <20241111135431.1813729-1-chenridong@huaweicloud.com> <4f78d752-52ab-493d-8bf5-f12dc4f554c8@huaweicloud.com> <2f755161-ec7e-4785-b0ca-ea68c01785a2@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-kernel@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: <2f755161-ec7e-4785-b0ca-ea68c01785a2@huaweicloud.com> Hello, On Fri, Nov 15, 2024 at 09:14:32AM +0800, Chen Ridong wrote: > Hi, Tj, There is no ambiguity what cgroup v2 shows. However, in cgroup > v1, the frozen tasks are reported as 'R'. Do you think this is reseanable? Oh, right, pardon my confusion. I thought this was about cgroup2 freezer. For cgroup1 freezer, yes, D is the closest state for reporting to userspace. Thanks. -- tejun