Hi LIst, This is about reader-writer spinlocks. The Robert love's book says that Readers are given preference over writers, where as LDD3 says writers are given preference over readers. So which one is correct? And about reader-writer semaphores? Thanks, Rick - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs