On 05/09/2011 09:45 PM, Lamar Owen wrote: > > What sort of SATA drives are you using? There are some known issues with some SATA drives in certain configurations and on some controllers. It shouldn't cause kswapd to hit high CPU, but it is worth checking out. > these modules are loaded when i install centos 5.5. lsmod | egrep 'ata_piix|libata' ata_piix 57285 3 libata 208977 1 ata_piix scsi_mod 199001 5 scsi_dh,sg,usb_storage,libata,sd_mod -- S.Ali Ahsan Senior System Engineer e-Business (Pvt) Ltd 49-C Jail Road, Lahore, P.O. Box 676 Lahore 54000, Pakistan Tel: +92 (0)42 3758 7140 Ext. 128 Mobile: +92 (0)345 831 8769 Fax: +92 (0)42 3758 0027 Email: ali.ahsan at panasiangroup.com www.ebusiness-pg.com www.panasiangroup.com Confidentiality: This e-mail and any attachments may be confidential and/or privileged. If you are not a named recipient, please notify the sender immediately and do not disclose the contents to another person use it for any purpose or store or copy the information in any medium. Internet communications cannot be guaranteed to be timely, secure, error or virus-free. We do not accept liability for any errors or omissions.