Hi I am a lecturer in Computer science college and i am teaching Perallel Processing subject in which the programing is done under the Linux base C. Now when i am sharing a varible among the process using shmget and shmctl function , then if the variable is normal integer then my program works but if i want to share the variable that is integer array then, at compile time it is not giving me any error but when i am running this program using ./ filename it gives me segmentation fault (core dumped) error please provide solution to me Bhavesh Patel __________________________________ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail