Re: [git pull] scheduler fixes

Greg KH
2007-12-04T18:26:31Z

On Tue, Dec 04, 2007 at 05:18:27PM +0100, Ingo Molnar wrote:
>
> * Ingo Molnar <mingo@elte.hu> wrote:
>
> > The problem is on SMP: if sched_rr_get_interval() gets a task from an
> > otherwise idle runqueue, then rq->load.weight is 0. Normally
> > sched_slice() is only used on a busy runqueue. So the correct fixup
> > site is not in sched_slice() but in sys_sched_rr_get_interval() - i'm
> > working on the right fix, i hope to be able to send a pull request in
> > a few minutes.
>
> the problem is on UP too - if there are no SCHED_OTHER tasks. I've
> tested the fix and it solves the problem for various combinations of
> crash.c. I've updated sched.git, please pull it from:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched.git
>
> It has another commit besides this fix. Thanks,

Can you make up something that I can apply for 2.6.23-stable? or is
this not an issue on that tree?

thanks,

greg k-h