Hi, I think in order to generate system call exception using instruction "sc", we have to update EVPR with "mtspr". So that corresponding handler will be called based upon the contents of EVPR.
But in source code that I am seeing has something like: mr r6,r3 ori r3,r5, value li r0,somevalue sc .... ... Even if EVPR is not updated with any value a Machine check interrupt is being generated. 1) Kindly clarify how control goes to machine check interrupt handler, is it beacuse of call to "sc" or some other event triggers interrupt? 2) Why "sc" is being called without setting EVPR. I have not subscribed to this list. Kindly mail me at venkatraghu2002 at yahoo.com Thankyou. Venkat. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
