From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 97309C19F29 for ; Wed, 27 Jul 2022 19:33:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234100AbiG0Td3 (ORCPT ); Wed, 27 Jul 2022 15:33:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52330 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229680AbiG0Td1 (ORCPT ); Wed, 27 Jul 2022 15:33:27 -0400 Received: from mail-pg1-x52c.google.com (mail-pg1-x52c.google.com [IPv6:2607:f8b0:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0F48E3AE52; Wed, 27 Jul 2022 12:33:27 -0700 (PDT) Received: by mail-pg1-x52c.google.com with SMTP id e132so16694312pgc.5; Wed, 27 Jul 2022 12:33:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=84;0;0cto:in-reply-to:content-disposition:mime-version:references :message-id:subject:cc:from:date:sender:from:to:cc; bh=6pnTblxCyJMu4c6E/4UqG0qh2Y7YbnKnimTleXn2d64=; b=JrjKtZg0AWloTpMMF1BWDJo8qbcS/l1KoteqVQntHR87K9jNSXqRl1tmDCq7pgkQ7Y W5UoJsZ8ypj+r8vmNk7aXOoh1fPNs5umdWf4mdKl7PqRFbzlxlEIb2S4HIjaYZCxMA+z g7/9MYr9YNJP1OFIYZb8qpI34w15h3v8rA5QtBfEu57mL+J0uLkAxz0sYTzfhFVQ08Q+ 9E8G3lgnEEzxX+r1ZNlVg1h90WP3uVjsM7oQeNCm1MWCpKjDc0nTLcY/dsMgZV6JBtIt 8LzxiF7pv6ihLoNey3IiHkBANXEL7CSaQ9fHIFxA8f/qt2F9Nbg9jh/jQGTP1f8zYVOP 5nTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=84;0;0cto:in-reply-to:content-disposition:mime-version:references :message-id:subject:cc:from:date:sender:x-gm-message-state:from:to :cc; bh=6pnTblxCyJMu4c6E/4UqG0qh2Y7YbnKnimTleXn2d64=; b=R+cBWGTWIgOsGSyeihO+a5Tf/X0HhE3p3773GU9K7r3oYw0Qsf75mBt1dzTwmZtqCH O4hiblPjdsSwsgP7pkCa4gPQe65a6pmwFWOE41KvlorJ9SEYErfMNDTh9TnWXNKHAI7w mJiAVfWJ1fDWLcLd8sPTzr2P3H9J+RsawzMemxreExtbXMq4Xr4PunAsDyHrqlkp0pJo +HFpHDCelkf4VnVuqO3Ijh1xLj8ZoSOH2zQ5mLLpWyVeBNa2vZcBVswAoirMCPa+sdPu 3ZnZIPJO6yvyI77FUvK+qJRkxKadx+XMlDAmhSv/PM0wvLcPgVHEZapH0uJA6hTaD46A FzSw== X-Gm-Message-State: AJIora+Y0m2/afbh1w2nJqKSqXmHpaxdinyTXFJ+ZLGAQcb4HwRHMcJJ lQUrynPWumPeZ/LJBYcoQ5s= X-Google-Smtp-Source: AGRyM1uRC/uKhHvXoAjn4IxP2UWh2xu80qLkDbo6u7WMC0tNhq1YZdk1xDSPH8ZWrtfzcJtJgdTtdg== X-Received: by 2002:a65:6714:0:b0:41a:49fa:2bd7 with SMTP id u20-20020a656714000000b0041a49fa2bd7mr20062879pgf.331.1658950406370; Wed, 27 Jul 2022 12:33:26 -0700 (PDT) Received: from localhost ([2620:10d:c090:400::5:5a55]) by smtp.gmail.com with ESMTPSA id u8-20020a1709026e0800b0016d01c133e1sm6961575plk.248.2022.07.27.12.33.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Jul 2022 12:33:25 -0700 (PDT) Sender: Tejun Heo Date: Wed, 27 Jul 2022 09:33:24 -1000 From: Tejun Heo Cc: Imran Khan , lizefan.x@bytedance.com, hannes@cmpxchg.org, tglx@linutronix.de, steven.price@arm.com, peterz@infradead.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Query regarding deadlock involving cgroup_threadgroup_rwsem and cpu_hotplug_lock Message-ID: References: <8245b710-8acb-d8e6-7045-99a5f71dad4e@oracle.com> <26d0e4cc-be0e-2c12-6174-dfbb1edb1ed6@oracle.com> <224b19f3-912d-b858-7af4-185b8e55bc66@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 84;0;0cTo: Mukesh Ojha To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 20, 2022 at 08:05:03AM -1000, Tejun Heo wrote: > On Wed, Jul 20, 2022 at 05:31:51PM +0530, Mukesh Ojha wrote: > > Looks like these patches are the fixes. > > > > https://lore.kernel.org/all/YtDvN0wJ6CKaEPN8@slm.duckdns.org/#r > > > > Would let Tejun confirm this . > > Yeah, looks like the same issue. I'll write up a patch later this week / > early next unless someone beats me to it. https://lore.kernel.org/lkml/20220705123705.764-1-xuewen.yan@unisoc.com/ is the thread with the same issue. Let's follow up there. Thanks. -- tejun