Dear Dev; I just saw from linux mail list that you know the error about "Reversed (or previously applied) patch detected!" when I patch the Linux kernel 2.4.18. There are thousand of them. Need I manually reply all the question. If it is, how to reply? I need your help if you have time. I could not get any idea even I search from 'Google'. Thank you. Yours,Tao Zhang ME department Tulane University New Orleans LA, 70118