First, modify your s:startup-sequence so you run segtracker right after setpatch.
For example:

...
C:SetPatch QUIET
C:SegTracker
...

The reboot, and start the debug script like this:

1.Workbench > s:debug mw

If you don't use a console handler with scrollback buffer, you can redirect the
output to a file, like this:

1.Workbench > s:debug mw > debug-log.txt

You can stop the script by pressing ctrl-c.