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 34768C433EF for ; Tue, 29 Mar 2022 21:22:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233553AbiC2VY3 (ORCPT ); Tue, 29 Mar 2022 17:24:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231886AbiC2VY1 (ORCPT ); Tue, 29 Mar 2022 17:24:27 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2249022030B for ; Tue, 29 Mar 2022 14:22:41 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 712EBB81A2C for ; Tue, 29 Mar 2022 21:22:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 67B5AC34100; Tue, 29 Mar 2022 21:22:38 +0000 (UTC) Date: Tue, 29 Mar 2022 17:22:36 -0400 From: Steven Rostedt To: Peter Zijlstra Cc: LKML , Thomas Gleixner , Sebastian Andrzej Siewior , joel@joelfernandes.org Subject: Re: sched_core_balance() releasing interrupts with pi_lock held Message-ID: <20220329172236.48683eb5@gandalf.local.home> In-Reply-To: <20220321133037.7d0d0c7f@gandalf.local.home> References: <20220308161455.036e9933@gandalf.local.home> <20220315174606.02959816@gandalf.local.home> <20220316202734.GJ8939@worktop.programming.kicks-ass.net> <20220316210341.GD14330@worktop.programming.kicks-ass.net> <20220321133037.7d0d0c7f@gandalf.local.home> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 21 Mar 2022 13:30:37 -0400 Steven Rostedt wrote: > On Wed, 16 Mar 2022 22:03:41 +0100 > Peter Zijlstra wrote: > > > Does something like the below (untested in the extreme) help? > > Hi Peter, > > This has been tested extensively by the ChromeOS team and said that it does > appear to fix the problem. > > Could you get this into mainline, and tag it for stable so that it can be > backported to the appropriate stable releases? > > Thanks for the fix! > Hi Peter, I just don't want you to forget about this :-) -- Steve