Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751482AbaL0Cyf (ORCPT ); Fri, 26 Dec 2014 21:54:35 -0500 Received: from arcturus.aphlor.org ([188.246.204.175]:58148 "EHLO arcturus.aphlor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751305AbaL0Cyd (ORCPT ); Fri, 26 Dec 2014 21:54:33 -0500 Date: Fri, 26 Dec 2014 21:53:54 -0500 From: Dave Jones To: Linus Torvalds Cc: Thomas Gleixner , Chris Mason , Mike Galbraith , Ingo Molnar , Peter Zijlstra , =?iso-8859-1?Q?D=E2niel?= Fraga , Sasha Levin , "Paul E. McKenney" , Linux Kernel Mailing List , Suresh Siddha , Oleg Nesterov , Peter Anvin , John Stultz Subject: Re: frequent lockups in 3.18rc4 Message-ID: <20141227025353.GC32271@codemonkey.org.uk> Mail-Followup-To: Dave Jones , Linus Torvalds , Thomas Gleixner , Chris Mason , Mike Galbraith , Ingo Molnar , Peter Zijlstra , =?iso-8859-1?Q?D=E2niel?= Fraga , Sasha Levin , "Paul E. McKenney" , Linux Kernel Mailing List , Suresh Siddha , Oleg Nesterov , Peter Anvin , John Stultz References: <20141222225725.GA8140@codemonkey.org.uk> <20141224030125.GA8725@codemonkey.org.uk> <20141226163410.GA25161@codemonkey.org.uk> <20141226181204.GA26527@codemonkey.org.uk> <20141226225744.GA30955@codemonkey.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Spam-Score: -2.9 (--) X-Spam-Report: Spam report generated by SpamAssassin on "arcturus.aphlor.org" Content analysis details: (-2.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-Authenticated-User: davej@codemonkey.org.uk Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Dec 26, 2014 at 03:30:20PM -0800, Linus Torvalds wrote: > On Fri, Dec 26, 2014 at 2:57 PM, Dave Jones wrote: > > > > still running though.. > > Btw, did you ever boot with "tsc=reliable" as a kernel command line option? I'll check it again in the morning, but before I turn in for the night, so far the only thing is this: [ 6713.394395] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 6713.394489] Tasks blocked on level-0 rcu_node (CPUs 0-7): [ 6713.394513] Tasks blocked on level-0 rcu_node (CPUs 0-7): [ 6713.394536] (detected by 3, t=6502 jiffies, g=141292, c=141291, q=0) [ 6713.394564] INFO: Stall ended before state dump start Dave -- 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/