From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753434AbdK1RKN (ORCPT ); Tue, 28 Nov 2017 12:10:13 -0500 Received: from Galois.linutronix.de ([146.0.238.70]:34720 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751439AbdK1RKM (ORCPT ); Tue, 28 Nov 2017 12:10:12 -0500 Date: Tue, 28 Nov 2017 18:10:08 +0100 (CET) From: Thomas Gleixner To: "Paul E. McKenney" cc: kernel test robot , LKML , lkp@01.org Subject: Re: [lkp-robot] [torture] b151f93a71: INFO:rcu_preempt_detected_stalls_on_CPUs/tasks In-Reply-To: <20171128170759.GU3624@linux.vnet.ibm.com> Message-ID: References: <20171126084203.GE21779@yexl-desktop> <20171127215735.GP3624@linux.vnet.ibm.com> <20171128164144.GS3624@linux.vnet.ibm.com> <20171128170759.GU3624@linux.vnet.ibm.com> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 28 Nov 2017, Paul E. McKenney wrote: > On Tue, Nov 28, 2017 at 05:47:35PM +0100, Thomas Gleixner wrote: > diff --git a/kernel/time/timer.c b/kernel/time/timer.c > index db774b0f217e..a3321bb565db 100644 > --- a/kernel/time/timer.c > +++ b/kernel/time/timer.c > @@ -1803,7 +1803,7 @@ signed long __sched schedule_timeout(signed long timeout) > idx = timer_get_idx(&timer.timer); > idx_now = calc_wheel_index(j, base->clk); > raw_spin_unlock_irqrestore(&base->lock, flags); > - pr_info("%s: Waylayed timer idx: %u idx_now: %u\n", __func__, idx, idx_now); > + pr_info("%s: Waylayed timer base->clk: %#lx jiffies: %#lx base->next_expiry: %#lx timer->flags: %#x timer->expires %#lx idx: %u idx_now: %u\n", __func__, base->clk, j, base->next_expiry, timer.timer.flags, timer.timer.expires, idx, idx_now); Please print idx and idx_now as hex values. It's simpler to decode that way. Thanks, tglx