|There is not enough information here to provide a reasonable response. A few questions arise however:|
1) How do you connect to the console. In most cases the use of ctrl-P should awaken the console and halt the processor yielding a prompt of >>>.
2) Has this occurred more than once?
In the future, attach a real terminal to the console and enter the ctrl-P. At the >>> prompt enter CRASH. This should force a system crash along with a crash dump file. Analysis of that file should provide some insight to the hang.