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 B27A1C43334 for ; Thu, 14 Jul 2022 14:40:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238671AbiGNOkG (ORCPT ); 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> 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.