Hi all, I am running one parallel program over network. But in meantime, sometimes some processes on some nodes gets stuck & then show status as 'D' is ps -aex output. I am not able to kill that process. I need to reboot the node. i searched in books & net, that such state is uninterruptible sleep/waiting state. What can be the reason for going into such state ? Whether any I/O activity will be the cause for this ? Can somebody give more info about this ? Any link/reference will be helpful. TIA, Yogeshwar -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ