After much headache I've tracked the issue down to the ufw firewall. It seems that the problem happens every time that anything attempts to connect to a blocked port. There are some devices on my network which are regularly trying to connect to blocked ports which then triggers the problem. If I disable the firewall the problem goes away (or is at least very much less frequent).
Not sure how or why the firewall would be causing the UART interrupt to get starved out. Is anyone able to reproduce this problem or offer an explanation? Thanks. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
