Context switch throws out

[leonp at plris.com (Leon Pollak)]

Hello,
	Slowly, slowly, I came to the phase of the first context switch on my mbx860 
derived board. It the uses new_exception_processing, as I was able to 
determine.
	With the bdm interfaced debugger I can follow the execution up to the end of 
_CPU_Context_switch function, where everything seems to be OK. Before the 
last instruction execution (blr) the link register contains the address of 
the _Thread_Handler function. I suppose that this is OK and make one stepi 
command.
	The result is very strange: the PC jumps somewhere inside 
push_normalized_frame routine (?), while the assembler code at the address of 
_Thread_Handler looks corrupted.
	All my attempts to determine when the _Thread_Handler becomes corrupted shows 
that this happens exactly after the blr command execution, which seems to be 
noncense...

Any hint about where to look which be VERY highly appreciated...:-))

-- 
Leon Pollak
leonp at plris dot com