Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932409AbWHKA6R (ORCPT ); Thu, 10 Aug 2006 20:58:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932419AbWHKA6R (ORCPT ); Thu, 10 Aug 2006 20:58:17 -0400 Received: from server99.tchmachines.com ([72.9.230.178]:7336 "EHLO server99.tchmachines.com") by vger.kernel.org with ESMTP id S932409AbWHKA6Q (ORCPT ); Thu, 10 Aug 2006 20:58:16 -0400 Date: Thu, 10 Aug 2006 18:00:00 -0700 From: Ravikiran G Thirumalai To: "Bizhan Gholikhamseh (bgholikh)" Cc: linux-kernel@vger.kernel.org Subject: Re: kernel panic:BUG in cascade at kernel/timer.c Message-ID: <20060811010000.GA3855@localhost.localdomain> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - server99.tchmachines.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [0 0] / [47 12] X-AntiAbuse: Sender Address Domain - scalex86.org X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 819 Lines: 18 On Thu, Aug 10, 2006 at 02:26:15PM -0700, Bizhan Gholikhamseh (bgholikh) wrote: > Hi All, > We have developed our own custom board based on MPC8541 board running > linux 2.6.11 During stress testing the system we get following kernel > panic which related to timer cascase. > Any hints greatly apprieciated. Many thanks in advance: Is this an MP configuration? If timer interrupts are distributed to more than one cpu this could happen (buggy hardware). Also, I remember a missing barrier someplace for PPC which was fixed in newer kernels. Read the GIT logs. HTH Kiran - 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/