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 924C1C88CB4 for ; Mon, 12 Jun 2023 17:42:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233884AbjFLRmQ (ORCPT ); Mon, 12 Jun 2023 13:42:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49094 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233188AbjFLRmK (ORCPT ); Mon, 12 Jun 2023 13:42:10 -0400 Received: from mail-pg1-x529.google.com (mail-pg1-x529.google.com [IPv6:2607:f8b0:4864:20::529]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0DA62C7 for ; Mon, 12 Jun 2023 10:42:09 -0700 (PDT) Received: by mail-pg1-x529.google.com with SMTP id 41be03b00d2f7-543a09ee32eso2539320a12.1 for ; Mon, 12 Jun 2023 10:42:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1686591728; x=1689183728; 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=G/jEqixu5EgSmfAcdSh1PYvew2E/XKFx7tx/2WzoNUo=; b=Gkp/FjG/xSSGmMWiGzOzvfx8E+01kgc9R74OpFhtf+WCR0xt+h1imxO27iibcBFEdg eJdRwXbZFVBUyV/hSkRRtM/zpxACD6UfTVDFOR1g2YLF01cRDFPtgQIHt/ybEEKkTZoT SDAu148cudwjrCT6f7vlVr3Kr/4ibdO7bJzgCU9LNA33CJ4S4w8yVnI7C6NHU4F4DhgQ WngMaJXUFDJwowDQAKad1I8cXVQK93Ru/q+c68rvtZFm6RANiDfr8RTxFImsGupr91fU h9NT1LChKCF5TLuwU2W1pYb5Knus0gliWPpPHZqWt2RaFfWfHnh5fVXaH6e83IRv3kMz NZlA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686591728; x=1689183728; 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=G/jEqixu5EgSmfAcdSh1PYvew2E/XKFx7tx/2WzoNUo=; b=M4L2//vSWK6iTyu6lXaKqJdEuiWl/iz2axivlt+YOKfat0cHcHPmWe1r8J9BGJk7aF jScRCRoFaX5RFZ8n3pllVgRGKv9pUMeoSGbjAmlBAEf6+Y8v1k+BXIvsw/EJ29OsIM4s H0OmJmSfMCvH0uZm4aHPNxMtHNCtUEe3vJU213P2gQSx7BAOSz+gxeSsyjxBhCbuoc/9 6jSRa0LV+dvpvmSeRttMFsf0/FCxDAH4aY6iGem59bJFGvKfIQD34NAxJXB7Y5lD5QLQ SyoO+HlG38P/sg9UtDqtbEZgTck8SMwvVzeonTbYqh0ZZPNDB9TZMA+6QP7Uiktps+Bg BJTQ== X-Gm-Message-State: AC+VfDwQePGj3JL7SarJsF72x87QFQ/Gu4gmawNuP7gPjQWtKFqYFR7L qILoAD4N73GmEJt0d20Qyh4= X-Google-Smtp-Source: ACHHUZ61spadDNIsHBcM/RTeTBUdyaH5lJckb6pVCK0NpfjRH0peC2kBZ5K0yycfBUU5riq0ZRK/Eg== X-Received: by 2002:a17:90b:314c:b0:25b:83ca:2b75 with SMTP id ip12-20020a17090b314c00b0025b83ca2b75mr13034779pjb.3.1686591728306; Mon, 12 Jun 2023 10:42:08 -0700 (PDT) Received: from localhost (dhcp-72-235-13-41.hawaiiantel.net. [72.235.13.41]) by smtp.gmail.com with ESMTPSA id c15-20020a17090abf0f00b0025645d118adsm7792149pjs.14.2023.06.12.10.42.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Jun 2023 10:42:07 -0700 (PDT) Sender: Tejun Heo Date: Mon, 12 Jun 2023 07:42:11 -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: <202306120920.a932842-oliver.sang@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. Thanks. -- tejun