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    SubjectRe: [RFC][PATCH 00/13] SCHED_DEADLINE server infrastructure
    Hi Peter,

    On Fri, 26 Jul 2019 16:54:09 +0200
    Peter Zijlstra <peterz@infradead.org> wrote:

    > Hi,
    >
    > So recently syzcaller ran into the big deadline/period issue (again),
    > and I figured I should at least propose a patch that puts limits on
    > that -- see Patch 1.
    >
    > During that discussion; SCHED_OTHER servers got mentioned (also
    > again), and I figured I should have a poke at that too. So I took
    > some inspiration from patches Alessio Balsini send a while back and
    > cobbled something together for that too.

    I think Patch 1 is a very good idea!

    The server patches look interesting (and they seem to be much simpler
    than our patchset :). I need to have a better look at them, but this
    seems to be very promising.



    Thanks,
    Luca



    >
    > Included are also a bunch of patches I did for core scheduling (2-8),
    > which I'm probably going to just merge as they're generic cleanups.
    > They're included here because they make pick_next_task() simpler and
    > thereby thinking about the nested pick_next_task() logic inherent in
    > servers was less of a head-ache. (I think it can work fine without
    > them, but its easier with them on)
    >
    > Anyway; after it all compiled it booted a kvm image all the way to
    > userspace on the first run, so clearly this code isn't to be trusted
    > at all.
    >
    > There's still lots of missing bits and pieces -- like changelogs and
    > the fair server isn't configurable or hooked into the bandwidth
    > accounting, but the foundation is there I think.
    >
    > Enjoy!
    >

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