From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757681Ab3KMCSj (ORCPT ); Tue, 12 Nov 2013 21:18:39 -0500 Received: from e28smtp08.in.ibm.com ([122.248.162.8]:38859 "EHLO e28smtp08.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754491Ab3KMCSb (ORCPT ); Tue, 12 Nov 2013 21:18:31 -0500 Message-ID: <5282E16F.5010407@linux.vnet.ibm.com> Date: Wed, 13 Nov 2013 10:18:23 +0800 From: Michael wang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Fengguang Wu , Peter Zijlstra CC: Ingo Molnar , linux-kernel@vger.kernel.org Subject: Re: [sched/get_online_cpus] INFO: task swapper/0:1 blocked for more than 120 seconds. References: <20131110101612.GC21916@localhost> <52808B7F.6000309@linux.vnet.ibm.com> <20131111162022.GB21461@twins.programming.kicks-ass.net> <20131112095516.GB32441@localhost> In-Reply-To: <20131112095516.GB32441@localhost> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13111302-2000-0000-0000-00000E82AAA4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/12/2013 05:55 PM, Fengguang Wu wrote: [snip] >> >> Good thinking.. Wu did this cure stuff? Thanks for the confirm :) > > Yes, it fixed the problem. Thanks for the testing :) > > Tested-by: Fengguang Wu > Will send out a formal patch later. Regards, Michael Wang > > /kernel/i386-randconfig-j3-11101308/484f4e66a6a1102edf02407479f6f7632aade0f3 > > +--------------------------------------------------+--------------+--------------+ > | | e5137b50a064 | 484f4e66a6a1 | > +--------------------------------------------------+--------------+--------------+ > | boot_successes | 42 | 100 | > | boot_failures | 58 | | > | INFO:task_blocked_for_more_than_seconds | 58 | | > | Kernel_panic-not_syncing:hung_task:blocked_tasks | 58 | | > +--------------------------------------------------+--------------+--------------+ > > /kernel/x86_64-randconfig-x4-1108/484f4e66a6a1102edf02407479f6f7632aade0f3 > > +------------------------------------------------------------------------------------+-----------+--------------+--------------+ > | | v3.12-rc7 | e5137b50a064 | 484f4e66a6a1 | > +------------------------------------------------------------------------------------+-----------+--------------+--------------+ > | boot_successes | 59 | 34 | 100 | > | has_kernel_error_warning | 4 | | | > | BUG:kernel_early_hang_without_any_printk_output | 4 | | | > | boot_failures | 0 | 66 | | > | INFO:task_blocked_for_more_than_seconds | 0 | 66 | | > | INFO:NMI_handler(arch_trigger_all_cpu_backtrace_handler)took_too_long_to_run:msecs | 0 | 55 | | > | Kernel_panic-not_syncing:hung_task:blocked_tasks | 0 | 66 | | > +------------------------------------------------------------------------------------+-----------+--------------+--------------+ > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >