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From:   Biju Das <biju.das.jz@bp.renesas.com>
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Subject: RE: [PATCH] sched/fair: fix pick_eevdf to always find the correct se
Thread-Topic: [PATCH] sched/fair: fix pick_eevdf to always find the correct se
Thread-Index: AQHZ950NDu+uQ14YiUiCYnTsYxjU8LA7SzkQ
Date:   Thu, 5 Oct 2023 15:08:36 +0000
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 <20231005150258.GA36277@noisy.programming.kicks-ass.net>
In-Reply-To: <20231005150258.GA36277@noisy.programming.kicks-ass.net>
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Hi Peter Zijlstra,

> Subject: Re: [PATCH] sched/fair: fix pick_eevdf to always find the correc=
t
> se
>=20
> On Thu, Oct 05, 2023 at 07:31:34AM +0000, Biju Das wrote:
>=20
> > [   26.099203] EEVDF scheduling fail, picking leftmost
>=20
> This, that the problem.. the rest is just noise because printk stinks.
>=20
> Weirdly have not seen that trigger, and I've been running with this patch
> on for a few days now :/

I agree Original issue is "EEVDF scheduling fail, picking leftmost"
Which is triggering noisy lock warning messages during boot.

2 platforms are affected both ARM platforms(Renesas and Samsung)
Maybe other platforms affected too.

I am happy to test if there is a fix available for this issue.

Cheers,
Biju