On Thu, Aug 31, 2023 at 09:02:53PM -0600, Brook Milligan wrote: > > However, a write fails and hangs the board hard: no keyboard response, no > response to pings. I have attached the test program below, and would > appreciate more eyes on it from (the many) people who obviously know serial > line programming better than I do. It gets as far as the write() call, but > no further. >
This sounds like a driver bug. In no circumstances should a user land program be able to hang a machine. I would log a kernel PR with your sample code attached. I may be helpful if you can get into ddb and get a backtrace there. -- Brett Lymn -- Sent from my NetBSD device. "We are were wolves", "You mean werewolves?", "No we were wolves, now we are something else entirely", "Oh"
