I am using the funtion interrupt_entry_init to initialize the interrupt with set callbacks in my WIFI driver using io-
pkt. When the function is run in a single core Marvell processor based board, I find that the function exits without any
 problem. But when the function is run on a multi core pxa2128 based board I find the function returns a failure.

  irupt thread creation: 11

I am guessing the number 11 is EAGAIN (Resource not available). I checked the interrupt.c code of the network stack and 
found that the reason for the problem is that this condition

((flags & WT_CORE) && sctlp->nthreads_core >= sctlp->nthreads_core_max) ||
	    ((flags & WT_OOB) && sctlp->nthreads_oob >= sctlp->nthreads_oob_max)

is becoming true.  Is there any documentation on why this is happening?