nr_running and runqueue_head ?

["Timothy Bisson" <t_bisson@hotmail.com>]

Hi,
    This is probably a dumb question, but here it goes. I am using the kgdb 
2.4.10 patch (remote debugging) to understand the scheduler. If I use ddd on 
a test machine and let the test machine "run" with a couple of running 
applications. Then, I halt the test machine and check nr_running and the the 
runqueue_head. Most of the time, I notice nr_running is 0 and runqueue_head 
just points to itself. Also most of the threads are sleeping.

      Should't some of the threads be on the run_queue(i.e. a media player 
and other running programs) and of course nr_running greater than 0? Can 
someone explain this scenario?

thanks,
tim


_________________________________________________________________
Chat with friends online, try MSN Messenger: http://messenger.msn.com

--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
IRC Channel:   irc.openprojects.net / #kernelnewbies
Web Page:      http://www.kernelnewbies.org/