Не забываем убрать options DEVICE_POLLING из ядра, иначе не будет работать:

netisr.c:
[code]
#ifdef DEVICE_POLLING
/*
* The device polling code is not yet aware of how to deal with
* multiple netisr threads, so for the time being compiling in device
* polling disables parallel netisr workers.
*/
if (netisr_maxthreads != 1 || netisr_bindthreads != 0) {
printf("netisr2: forcing maxthreads to 1 and bindthreads to "
"0 for device polling\n");
netisr_maxthreads = 1;
netisr_bindthreads = 0;
}
#endif
[/code]