kickstaring frame handling

[Jafa]

Hi guys,

How does the new frame handling get kickstarted (ie create the currently
executing frame)?

The ip2k port is dying with the message "internal-error: deprecated_read_fp"
triggered from legacy_get_prev_frame, called from unwind_to_current_frame.

Obviously it should not be trying to call this function so I must have
missed something.

I will keep tracing through it but if the problem is obvious to anyone then
it would save some debug time.

Thanks

Nick