> 
> t /l  will send the trace to the log. If you don't power-cycle the machine,
> it will appear in syslog next time you boot (assuming your bios does not
> trash memory ofcourse).

aha!  unfortunately, ddb reboot hangs in this case (maybe because of the
held lock?) so well that I can't even get into ddb again, and this machine
lacks a reset button separate from the power switch.

I guess it's either the serial console or transcribing by hand....

-Chap