>       if (wake_klogd && !runqueue_is_locked())
>               wake_up_klogd();
> 
> This probably is the cleanest solution since it simply prevents the
> deadlock from occurring.

Do you really need to call it with the runqueue lock held .. There are
other issue with the calls at that level.. For instance in -rt these
call can actually hang the system in the console laying from inside
printk (something I reported more than 6 months ago) .. It would be
better to move them around the scheduler rather than inside it..

Daniel

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