Hi, I continue with my effort to port last realtime-preempt patch available to 2.6.22. If i compile without ACPI/hrtimers i don't have any problem (performance and stability not tested yet). If i compile with these i have a big problem: ---[ Cutted form kernel/timer.c ]--- void msleep(unsigned int msecs) { unsigned long timeout = msecs_to_jiffies(msecs) + 1; while (timeout) timeout = schedule_timeout_uninterruptible(timeout); } ------------------------------------ The while construct never return! I think that Hrtimer subsystem isn't initialized when msleep called from do_probe() (ide subsystem). Someone have suggestions? Thanks in advance! Ciao, Alessio - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html