Hi Manish, may I ask you to help me with this: I am currently analyzing the yosemite interrupt handling code. So far I have not been able to find the point where the association between a particular external or message interrupt and its vector is established. It seems that the corresponding OCD address definitions from asm-mips/titan_dep.h, such as RM9000x2_OCD_INTPIN0, are not used anywhere in the code. I guess the kernel does not rely on PMON having set up this before, or does it? thanks, Thomas -- -------------------------------------------------- Thomas Koeller, Software Development Basler Vision Technologies thomas dot koeller at baslerweb dot com http://www.baslerweb.com ==============================