> "Did you set PREEMPT_RT=y (complete real-time) on your kernel > > configuration? It seems not... otherwise you would see those IRQ threads > > around." > > > > What can I do to verify the existence of the threads? > here with kernel 2.6.15-rt22 > $ ps -A|grep IRQ > answers > 17 ? 00:00:00 IRQ 9 > 389 ? 00:00:00 IRQ 12 Nope. ps -A|grep IRQ returns nothing. Apparently I did miss the config option. I just looked through the .config file I used and I could find no PREEMPT_RT option. These are the PREEMPT related values I can find in my .config. # CONFIG_SCHED_SMT is not set # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set CONFIG_PREEMPT=y CONFIG_PREEMPT_BKL=y I've read several howtos on adding Ingo Molnar's RT patch. None that I've read say anything about having to explicitly adding this option to the config file. What did I miss?
