ron minnich wrote:
Is there some way that the serial port could be misconfigured so that if you write to it too quickly you overflow the buffer and lose output?
it could be a hardware glitch actually. The code tests the tx ready bit and won't send until it is set.
All UARTs these days have FIFO, which could fail in theory, if coreboot is using it? It's not so likely though..
//Peter