On 05/22/2019 05:04 PM, Noel Chiappa via cctalk wrote:
Yes, this is most likely a bus timeout as the console firmware is polling the serial module, and that module is apparently not acknowledging the request.> On the LSI-11/2, with the machine stopped, 'run' was off, and the > output on AF1/AH1 was always high (i.e. not asserted). > I don't have any guesses as to what the behaviour of yours is about.Hah! Eureka! I had a brainwave, and decided to look at my machine with the serial console board pulled out! I then get the exact same behaviour on SRUN as you're seeing - a very brief spike every so often (about every 25 usec, here).
Jon
