On Sat, 22 Jun 2019, Harutyun Khachatryan wrote: > Dear Alan Stern, > > I thought that I should wait Mathias's response. I am terribly sorry for > that. I am sending dmesg log and trace content as you asked. I tried the > procedure on kernel 5.1.12-050112-generic since it's most recent now and > the bug still exists in it. If you need for 5.0 write me back. Thank you > in advance. The linux-usb mailing list does not accept email messages in HTML format. Please resend your message using plain text only. Also, I'm not the xHCI maintainer -- Mathias is. You should send your messages to him along with (or instead of) me. Finally, posting the logs isn't very useful if you don't say what you were doing at the time. When you resend your message, include a detailed description of exactly what you did while the logs were being collected. Alan Stern