Hi all, I am sorry last time I send the mail with NO Theme, and I think many people who are busy have discard the message as rubbish, so I re-send the message, as follow. And If it really worthwhile I will start to summarize it , and thank you. I have a problem,as follow. When program with rtlinux, we always worry about which function can be call, and which can not be call. And please help me to tell whether the following conclusion is right or not : Every Reentrant function can be call, and every non-reentrant function cannot be call. If it is right or nearly so, why don't we do some work to summarize all the function that can be call, and I think it will made programmers easy. Thanks for any answer. -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] --- For more information on Real-Time Linux see: http://www.rtlinux.org/rtlinux/