msproul/Arduino-stk500v2-bootloader — Issue #4: WDT not disabled.
Author: WestfW
Created: 2012-02-21 07:45:38+00:00
State: open

If an application program enables the watchdog, and an external or WDT-caused reset occurs, stk500v2 will not disable (nor reset) the WDT, causing it to go off again while it is waiting to decide whether there is bootloader-related serial activity. Looping infinitely.

http://code.google.com/p/arduino/issues/detail?id=181&q=watchdog has a patch attached.