On Mon, Apr 28, 2008 at 10:40:56AM -0500, Kumar Gala wrote:

A few possibilities:
* introduce an additional function pointer as part of  
EXC_XFER_TEMPLATE() to specifies the type of handler (normal, crit,  
dbg, mcheck)
* use the traps field low order bits to determine normal, crit, dbg,  
mcheck at run time.
* duplicate the code paths for each exception level

suggestions?

You could temporarily disable all asynchronous exceptions, and use the
registers of the highest-priority exception type.

-Scott