Just switch off linux firewall. any try
----- Original Message ---- From: Cheedhu <[EMAIL PROTECTED]> To: [email protected] Sent: Tuesday, 24 April, 2007 5:31:57 PM Subject: [TwinCLinG] I/O error on device-mapper RAID1 device Hi I have a server running on the following config DELL PowerEdge SC1425, Xeon 3.00 GHz, 2GB RAM, 2x73GB SCSI HDD on RAID 1 Fedora Core 6, Kernel Kernel 2.6.18-1.2798. fc6 x86_64 SMP The server was not responding though it was pingable! no response to any service. Even SSH was not connecting! unable to login even from the console so I could not get much details following is all that I could get! ~~~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~ I/O error, dev sdb, sector 87524995 device-mapper: raid1: A read failure occured on a mirror device. device-mapper: raid1: Trying different device. Unable to handle kernel NULL pointer dereference at 000000000000000 RIP ---kernel stack trace but unable to copy it----- ~~~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~ google search indicated that this was from read_callback( ) function in device-mapper ioctl The server is working after a reboot what could have caused this? and any suggestions of how this could be prevented? Add online presence to your web pages, find out how here - http://messenger.yahoo.com/addpresence.php [Non-text portions of this message have been removed]
