[Tinyos Core WG] micaz (atm128?) serial problem in 2.x

[Philip Levis]

This came up during net2's testing of collection. It looks like when  
a micaz app puts heavy load on the serial port (and there's lots of  
traffic) in 2.x, the mote can reboot. I don't know if this occurs  
with the mica2. I don't believe this ever happens on just the serial  
bandwidth app, but this might be due to rate-limited (send/sendDone)  
vs. not-limited (multiple senders) load, interactions with the radio,  
or something which the semantics of that app just don't tickle.

I remember going through the atm128 manual and seeing the reboot  
causes were pretty narrow. I was hard pressed to come up with a  
reason why it might be happening, besides something really weird like  
a memory bug enabling the watchdog timer.

Has anyone else encountered this or have any insights?

Phil