From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gewj Subject: A puzzling thing about RAID5: syslogd write the log success but another process can not read the /var/log/messages Date: Wed, 07 Apr 2004 21:24:01 +0800 Sender: linux-raid-owner@vger.kernel.org Message-ID: <407400F1.8090809@sinosoft.com.cn> Mime-Version: 1.0 Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: 7bit Return-path: To: linux-kernel@vger.kernel.org List-Id: linux-raid.ids hammm,tonight is funny because I got a puzzling thing just as.... my setup is a two-scsi-disk raid5 configuration... (Linux version 2.4.18-18.7.xsmp (Red Hat Linux 7.3 2.96-112)) #1 SMP Wed Nov 13 19:01:42 EST 2002) it work well for a long time, but now I found some day early one of the scsi disks failed, and I found out that that time syslogd restarted(why??) and it could write log infor to log file successfully. but at the same time , another process(named such as B,run by root) can not read the /var/log/messages,or what's more exactly, the messages file was look like empty to B then. (of course, the syslogd write log infor to /var/log/messages ) I wonder that if syslogd write the log infor to the well-work scsi disk , but the process B read the /var/log/messages from the crashed scsi disk,which cause it just like a empty file. yes, it is quite unbelievable. but can some one show me a clue to this puzzling problem? What is the proper course of this action?