linux-kernel - Re: [PATCH] sched/fair: fix pick_eevdf to always find the correct se

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Date:   Thu, 5 Oct 2023 17:11:23 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Biju Das <biju.das.jz@...renesas.com>
Cc:     "m.szyprowski@...sung.com" <m.szyprowski@...sung.com>,
        "bsegall@...gle.com" <bsegall@...gle.com>,
        "bristot@...hat.com" <bristot@...hat.com>,
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        "dietmar.eggemann@....com" <dietmar.eggemann@....com>,
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        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH] sched/fair: fix pick_eevdf to always find the correct se

On Thu, Oct 05, 2023 at 05:02:58PM +0200, Peter Zijlstra wrote:
> On Thu, Oct 05, 2023 at 07:31:34AM +0000, Biju Das wrote:
> 
> > [   26.099203] EEVDF scheduling fail, picking leftmost
> 
> This, that the problem.. the rest is just noise because printk stinks.
> 
> Weirdly have not seen that trigger, and I've been running with this
> patch on for a few days now :/

I've killed the patch for now, will try again once we figure out what
goes side-ways.


Thanks!