From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965034AbXGRXl4 (ORCPT ); Wed, 18 Jul 2007 19:41:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S936845AbXGRXdj (ORCPT ); Wed, 18 Jul 2007 19:33:39 -0400 Received: from shawidc-mo1.cg.shawcable.net ([24.71.223.10]:49403 "EHLO pd3mo2so.prod.shaw.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936816AbXGRXdh (ORCPT ); Wed, 18 Jul 2007 19:33:37 -0400 Date: Wed, 18 Jul 2007 17:35:19 -0600 From: Robert Hancock Subject: Re: RHEL4 kernel-2.6.9-42.0.2.EL In-reply-to: To: andrew2.li@citigroup.com Cc: linux-kernel@vger.kernel.org Message-id: <469EA3B7.2040201@shaw.ca> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7bit References: User-Agent: Thunderbird 2.0.0.4 (Windows/20070604) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andrew Li wrote: > Hi guys, > > I have a strange problem with cron, it is doing a segfault every minute. > This problem happened out of the blue, according to authlog no users > have logged onto the system in between the time it last worked and the > time it began to fail. > > The error messages from messages file is : > Jul 18 16:16:01 host100 kernel: crond[29540]: segfault at > 0000000000000000 rip 0000000000000000 rsp 0000007fbffbf018 error 14 > > Looking at arch/x86_64/mm/fault.c, this happens when a user proc is > trying to access memory thats not in its memory map. But the address > reported in messages doesn't match /proc/pid/maps. > > Does anyone have any idea what this might be? Looks like it's jumping to a null address. Presumably a cron bug. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@nospamshaw.ca Home Page: http://www.roberthancock.com/