About the exception ipc reply

Adam Lackorzynski adam at os.inf.tu-dresden.de
Sun Oct 11 20:03:41 CEST 2009

On Sun Oct 11, 2009 at 22:17:49 +0800, Guanghui, Cheng wrote:
> 	From the l4-x2 manual it is said the reply from the exception handler 
> contains a label, an instruction pointer where the faulting thread is resumed. 
> I want to know whether it is implemented in the Fiasco. 	
> 	I try to do this. Modify the utcb before send ipc resume the exception thread 
> but it seems no any effect about the instruction pointer and stack pointer of 
> resumed exception thread.

My guess would be that you did not set the number of words to send in
the reply. Set L4_UTCB_EXCEPTION_REGS_SIZE in the msgtag-words field of
the reply.

Adam                 adam at os.inf.tu-dresden.de
  Lackorzynski         http://os.inf.tu-dresden.de/~adam/

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