On Wed, Apr 08, 2020 at 02:59:17PM +0900, Yun Levi wrote: > Thank you for great comments. Thanks to you I understand what i missed. > > I try to generate problem on mainline But, as you explained that > situation isn't happen, > > Maybe my other things which I made generate some problem (freeing > network namespace..) > > Thanks for great answering and sharing. > > If I meet the situation, at that time I'll share. Thank you very much! > > P.S. If I have a question, Could I ask via e-mail like this? Sure, no problem...