Hi,everyone! As my experience, in the application level we can use the combination of signal() and alarm() to implement some simple works ,such as doing some scheduled task at a certain time, invoke some routine after a certain time...Now one thing confused me.I thing in the kernel module we can implement the same works. And I have tried to use the queue_task(&Task, &tq_timer),but when i try to "insmod", the LINUX will broken. Who can tell why?And hoew to implement the combination of signal and alarm in the Kenel Module? Thank you in advance! 祝 健康 愉快 广星 guangxing@ict.ac.cn 2003-09-15