Received: by 2002:ad5:4acb:0:0:0:0:0 with SMTP id n11csp626595imw; Thu, 14 Jul 2022 07:56:08 -0700 (PDT) X-Google-Smtp-Source: AGRyM1s8F5mivScP+rz61dcaJDtZwV4/gAveSwLfzD9GLvrTpBbacaGn7atTlFwYbAD+s1Ug1VZN X-Received: by 2002:a05:6a00:1991:b0:52b:160e:c51e with SMTP id d17-20020a056a00199100b0052b160ec51emr6390724pfl.59.1657810567924; Thu, 14 Jul 2022 07:56:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1657810567; cv=none; d=google.com; s=arc-20160816; b=l6eG9bTMJAMcpDXokQq8QOmPbVwWQetCOmcBnlT0MXPfr7tUHgWeN8rf39bHEATeAe SMK0/kpcMQPBHzIEysWC5DJcZMPdGxrBLUgtknyPM5VwxomskpGbuK7aCIS4hKTODRV6 AHI8lFl76bnBoGMpKU/7Q+6vwLOOFIu0Fwu7taxWdXcJQKIC7X/HVdD0LFVLPwlb+QCT MqWNtxMMa9ie0UYKgFYsQ8XAA7bshAUg4VsBoMc5nnA3+ETwq6x9PUS6xMXg9YDcwvOS AaMatvplk80I4C9zncyiHyJpzLpufqDV8nJs8Bk7b0zRXn7iNWS52jOeH2OON1iowQuj /gUQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=wrcLHCXkGbK7r6biJENdbeKdi71fzKteX/R2jsnl7ww=; b=dsp6ChpuTfcWZhqr1PUSMO+52TYswfdtpi2G0DBXiV1Gv5L4lizvrdhoCXZbvGVyXb CJT0of859kOiBGwfHPuOLisqxfdvzvaxoigts9hn3ugBwlEuHx30Vo/mHVKS79E7IXO4 MG9SQFItJXAgnICb7xp6lDtIRXTtDhq21bTKctbS2kIiceQEcDed0+dcuiw1cTKVhPLx TQO+TV6livlWD0U8RjN53yu0axCJt15TGF00Lm/Ku2Zd4SDsdwSJZJffQORSdoz3yX0c 6hGiuGMVWDKaA8X6eYpmDmXBRmab9iz9RtgIBDr1ttTQpCiZRB/+keF14LNyarAKyr9P 60bQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b="YGX/bfqI"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id i15-20020aa796ef000000b004fa3a8dff9dsi2487296pfq.84.2022.07.14.07.55.52; Thu, 14 Jul 2022 07:56:07 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b="YGX/bfqI"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238604AbiGNOkG (ORCPT + 99 others); Thu, 14 Jul 2022 10:40:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231785AbiGNOkD (ORCPT ); Thu, 14 Jul 2022 10:40:03 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 504C827CC3 for ; Thu, 14 Jul 2022 07:40:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=wrcLHCXkGbK7r6biJENdbeKdi71fzKteX/R2jsnl7ww=; b=YGX/bfqIsAQgg4G/mabage3DgV nLKSfaYMdsm91/BlFdSc5LxNk38KojSX8XzP+LSd0J3f9jW6OmJusDcqquwFQjk/G2E4lMs2G1r3R tNbU6mODO2odgtnq+5EPd6pDoQg1BP+G+Rs7LYNRAm+C5+asPC0lax4nxjZmUl/rsQ70UjTXH4UGp OncefpBEF634lTtKIqSGOACwADH6p6sk7UN04x0OzFK0+tsCSLnj6pC9TewOEc32/5S4sAKhH78Z7 eABkoOYw8LKuIh/QRrC33yKwriKn4ytZRsDiHTWv6wDiSKn5+UadcrW4CQt5Zh4ip+eMro8cufWIa d8tyVsMg==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=worktop.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1oC00K-009RYL-Lj; Thu, 14 Jul 2022 14:39:48 +0000 Received: by worktop.programming.kicks-ass.net (Postfix, from userid 1000) id 36DE398017C; Thu, 14 Jul 2022 16:39:47 +0200 (CEST) Date: Thu, 14 Jul 2022 16:39:47 +0200 From: Peter Zijlstra To: Lai Jiangshan Cc: Schspa Shi , tj@kernel.org, linux-kernel@vger.kernel.org, zhaohui.shi@horizon.ai Subject: Re: [PATCH] workqueue: Use active mask for new worker when pool is DISASSOCIATED Message-ID: References: <20220707090501.55483-1-schspa@gmail.com> <0320c5f9-cbda-1652-1f97-24d1a22fb298@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0320c5f9-cbda-1652-1f97-24d1a22fb298@gmail.com> X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 13, 2022 at 05:52:58PM +0800, Lai Jiangshan wrote: > > > CC Peter. > Peter has changed the CPU binding code in workqueue.c. [ 1622.829091] WARNING: CPU: 3 PID: 31 at kernel/sched/core.c:7756 sched_cpu_dying+0x74/0x204 [ 1622.829374] CPU: 3 PID: 31 Comm: migration/3 Tainted: P O 5.10.59-rt52 #2 ^^^^^^^^^^^^^^^^^^^^^ I think we can ignore this as being some ancient kernel. Please try something recent.