Rafael J. Wysocki: > Ah, NO_HZ. Thomas Gleixner's address added to the Cc list. > >> short printk trace >> >> enable_nonboot_cpus >> _cpu_up >> raw_notifier_callchain (CPU_UP_PREPARE) >> ... >> update_sched_domains >> detach_destroy_domains >> [waits here] --> synchronize_sched (==synchronize_rcu) > > Well, I think the call to wait_for_completion() does not return, probably > because the task supposed to complete the completion is frozen at this > point. Can you please try to confirm that it gets stuck on > wait_for_completion() in synchronize_rcu()?
Yes, it's in wait_for_completion() in synchronize_rcu(). As noted in some previous mail, it will wake up after event - key press etc. Patch in http://lkml.org/lkml/2007/3/7/255 solves different problem. I added it to my quilt and applied anyway -> no change. Milan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
