id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 10496,100% cpu usage when reading serial port on MacOSX,Christopher Moore ,chris_kohlhoff,"Simple test program is attached. All it does is setup a serial port and start waiting for data. It prints the first data it receives, and quits. It is using 100% cpu (according to activity monitor). I've tried with the following serial ports: silab usb adapter, prolific usb adapter, and pty with master attached to socat. The profiler puts most of the time in ```kevent``` called from ```boost::asio::detail::kqueue_reactor::run(bool, boost::asio::detail::op_queue&)```",Bugs,new,To Be Determined,asio,Boost 1.58.0,Problem,,,nknotts@…