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    SubjectRe: [Regression] 2.6.24-git9: RT sched mishandles artswrapper (bisected)
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    On Wed, 2008-02-06 at 23:18 +0100, Rafael J. Wysocki wrote:
    > On Wednesday, 6 of February 2008, Peter Zijlstra wrote:
    > >
    > > On Wed, 2008-02-06 at 22:50 +0100, Rafael J. Wysocki wrote:
    > > > On Wednesday, 6 of February 2008, Peter Zijlstra wrote:
    > >
    > > > > Well, that whole queue.
    > > >
    > > > It doesn't compile for me.
    > >
    > > I did solve some compile issues since posting, Ingo should have the
    > > compiling version in sched-devel soonish (don't know if he pushed it
    > > already).
    >
    > Can you point me to the cleaned up version, please?

    http://programming.kicks-ass.net/kernel-patches/sched-rt-group/

    on top of sched-devel.

    > > > > Your test program just failed to obtain realtime scheduling
    > > >
    > > > Well, it shouldn't. The expected result is to obtain realtime scheduling
    > > > or we will break existing setups.
    > >
    > > Thats a case of wrong expectations in my book. You enabled group
    > > scheduling and hence behaviour changes.
    >
    > So, I'd have to unset FAIR_GROUP_SCHED to obtain the previous behavior?

    With the mainline stuff, with the new stuff just ensure
    CONFIG_RT_GROUP_SCHED=n.

    > > There is just nothing much one can do about it, if you don't assign bandwidth
    > > to a group, it won't be able to run anything. Better to refuse to run, than to sit
    > > idle, right?
    >
    > As a general rule, probably yes.
    >
    > > But I appreciate the situation, therefore I made the whole rt-group
    > > scheduling a separate .config option (which defaults to n)
    >
    > Which is introduced by the new patches, isn't it?

    Yes.



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