Hi All, I am visulaizing a one of the use of char device driver. I need to write a char device which will prompt me by printing on my pseudo terminal if there is any zombie element in a runqueue on a specific processor.
Is it possible to keep a track on runqueue through a function defined in a char device ? If I provied the information about zombies via /proc filesystem, then a user needs to read file again and again and would not be able to keep a constant watch on the zombies. Is it possible that my char device goes to sleep on a waitqueue and wakes up's only when a zombies process is present in a runqueue and then after giving details of that zombie process, my char device driver again goes to sleep and wait for new zombies in a runqueue. Could anyone guide me is the above thought can be implemented. Can anybody guide me that how to use this_rq in a kernel module ? I get following error: CharRunQueue.o: unresolved symbol this_rq Including sched.h wonot help as macro is defined in sched.c. If I include sched.c, then I get lots of errors which are as follows: CharRunQueue.o: unresolved symbol immediate_bh CharRunQueue.o: unresolved symbol timer_bh CharRunQueue.o: unresolved symbol __switch_to CharRunQueue.o: unresolved symbol cpu_gdt_table CharRunQueue.o: unresolved symbol __mmdrop CharRunQueue.o: unresolved symbol tqueue_bh CharRunQueue.o: unresolved symbol default_ldt CharRunQueue.o: unresolved symbol show_trace_task CharRunQueue.o: unresolved symbol init_timervecs CharRunQueue.o: unresolved symbol __put_task_struct Please let me know where I am going wrong. Regards Dinesh ________________________________________________________________________ Yahoo! India Matrimony: Find your life partner online Go to: http://yahoo.shaadi.com/india-matrimony - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
