amd64+gdb -- instant reboot (BETA5 and 4)

[Mikhail Teterin]

> It's definitely not known. Any chance you could hook up a serial
> console to log the output. It'll be pretty hard to debug otherwise.
> Sounds like you're likely getting a triple fault.

I tried to set up the serial console today and could not. What I thought
is a null modem cable, apparently, is not...

Is there not a single person on these lists with an amd64 already
connected via a serial console? The bug is extremely easy to reproduce
-- just try to run timidity from inside gdb, stop it, and try to exit...

I do not see this bug in the 6.0R/todo.html and am worried, 6.0 will
ship with the bug in it...

	-mi