From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756719AbcK3Jog (ORCPT ); Wed, 30 Nov 2016 04:44:36 -0500 Received: from szxga03-in.huawei.com ([119.145.14.66]:27813 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933560AbcK3JnN (ORCPT ); Wed, 30 Nov 2016 04:43:13 -0500 Subject: Re: [RFC] panic on cascade() of kernel/time/timer.c To: Thomas Gleixner References: CC: Linux Kernel Mailing List , John Stultz , Hanjun Guo , Xishi Qiu From: Yisheng Xie Message-ID: Date: Wed, 30 Nov 2016 17:42:57 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.1.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.177.29.40] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2016/11/30 17:18, Thomas Gleixner wrote: > On Wed, 30 Nov 2016, Yisheng Xie wrote: > >> Hi all, >> The kernel version is 4.1.18, and we got a panic at cascade(). >> from the log it seems cause by BUG_ON of kernel/time/timer.c:1120. >> Any ideas about about it? > > Probably a timer which got freed while enqueued or some other wreckage in > that area. Certainly not a core code problem. > > Enable CONFIG_DEBUG_OBJECTS* and try to reproduce. The debug facility will > tell you which driver/whatever causes the problem. > Hi tglx, Thank you for your suggestion, and we will do that test. Thanks, Yisheng Xie > Thanks, > > tglx > > > . >