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 B735BC88CB2 for ; Mon, 12 Jun 2023 17:43:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234312AbjFLRne (ORCPT ); Mon, 12 Jun 2023 13:43:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234190AbjFLRna (ORCPT ); Mon, 12 Jun 2023 13:43:30 -0400 Received: from mail-pg1-x52d.google.com (mail-pg1-x52d.google.com [IPv6:2607:f8b0:4864:20::52d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5707918B for ; Mon, 12 Jun 2023 10:43:26 -0700 (PDT) Received: by mail-pg1-x52d.google.com with SMTP id 41be03b00d2f7-543b599054dso2569200a12.1 for ; Mon, 12 Jun 2023 10:43:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1686591806; x=1689183806; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:from:to:cc:subject:date:message-id :reply-to; bh=IgKe+22S/Equ9vneq3cQY7jgDts9lbX3Yflbz2hEohc=; b=AnBTqX5ksLm0QJawfnoJq9W+zeMYJtgTAzLuh7CRohG91xwR832TgXN9q6eG1pLwQU IVBQFqoqiUggss/aZBXTnszll1q9ZIO9QkrK5Ef1nd+YsRi9am+YJMDjUdWLE9QzxZym vPLDItXQah9ot3Kf8o2vjkWfSBnrHuopMQrUZllBy/2zWYS4xfd3g6scpVjkLiFGEZJp 3eHaCSfWaNkTNIhYgiSsovGKBXaREweLu/uzndoCKwcu9K9nwqyovwshmf/1KD83gri+ grA8rqOoyEzq5yWoIZm+owujdM2Iv65ESFEBEJTAvL4AOIro4RrjUgONp0OvhYQuA1f3 1vBw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686591806; x=1689183806; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=IgKe+22S/Equ9vneq3cQY7jgDts9lbX3Yflbz2hEohc=; b=bbi36Yf89JWmpLSwPYBPH49jv5PBduvnjph8tymqqS913NtyldOEa+VQnom1PFnOzw Upk3yHiYQCdXnDJaVeSj/+9s7Xjgiixd+I1gncnm84ekGwL609gR8ygqrUvT8TV31YQh EHbfDNt1lOG1qUgd2fiZgRLuWXBGNJguXXGQ4AXw2IG5GV5V9Q0bNGmwKUMp6E4g/bJg wYrdvsU/AlTymyOk5jNWQrFkrjqkMhI3Aq9JXlb33mfycCfADGKhUnLlwBq6aS1K233i DLdXm1PREC3/9U0LFmIt5Ja8UBd/ePLtikzQ9gvGyanW5YEJZInIEzOIToz0y2DaO7aG yMqQ== X-Gm-Message-State: AC+VfDwd+Ol7nh2ArieTTpbSKwC3DiJWsE2c6LlBS9C9FqnG+niCNc4C ZxnKl2kZb3I2UhPebn8p7Xs= X-Google-Smtp-Source: ACHHUZ560mH/7D8Ew6zwdbAzqjPF7h17AG0h5f4KvkBV8xlHoA5blPVMCTTU5p+Y4vXpA0VBM11EoA== X-Received: by 2002:a17:90b:1e08:b0:259:bff8:17a2 with SMTP id pg8-20020a17090b1e0800b00259bff817a2mr15815946pjb.0.1686591805601; Mon, 12 Jun 2023 10:43:25 -0700 (PDT) Received: from localhost (dhcp-72-235-13-41.hawaiiantel.net. [72.235.13.41]) by smtp.gmail.com with ESMTPSA id 28-20020a17090a031c00b0025c02ef91f6sm718992pje.22.2023.06.12.10.43.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Jun 2023 10:43:25 -0700 (PDT) Sender: Tejun Heo Date: Mon, 12 Jun 2023 07:43:28 -1000 From: Tejun Heo To: kernel test robot Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org Subject: Re: [tj-wq:affinity-scopes-dbg-invalid-cpu] [workqueue] e3485721f9: WARNING:at_kernel/workqueue.c:#workqueue_online_cpu Message-ID: References: <202306120920.a932842-oliver.sang@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 12, 2023 at 07:42:11AM -1000, Tejun Heo wrote: > On Mon, Jun 12, 2023 at 10:04:02AM +0800, kernel test robot wrote: > > [ 3.388228][ T21] ------------[ cut here ]------------ > > [ 3.394990][ T21] WARNING: CPU: 1 PID: 21 at kernel/workqueue.c:5393 workqueue_online_cpu (kernel/workqueue.c:5393 kernel/workqueue.c:5481) > ... > > [ 3.584746][ T21] ? workqueue_prepare_cpu (kernel/workqueue.c:5470) > > [ 3.591752][ T21] ? local_clock (kernel/sched/clock.c:270 kernel/sched/clock.c:307) > > [ 3.596749][ T21] cpuhp_invoke_callback (arch/x86/include/asm/jump_label.h:27 include/linux/jump_label.h:207 include/trace/events/cpuhp.h:65 kernel/cpu.c:193) > > [ 3.603751][ T21] ? try_to_wake_up (include/linux/sched.h:2254 kernel/sched/core.c:4312) > > [ 3.610751][ T21] cpuhp_thread_fun (kernel/cpu.c:815) > > This is set_cpus_allowed_ptr() failing on kworkers when workqueue tries to > put back the per-cpu kworkers on the onlining CPU, which is rather > unexpected. Let me include the error code in the warning message so that we > can understand why it fails the next time. Ah, never mind. This ->__pod_cpumaks not being initialized correctly by the patch and is already fixed in the newer version of the code. Thanks. -- tejun