linux-kernel - Re: [GIT PULL] scheduler updates for v5.18

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Date:   Mon, 21 Mar 2022 09:13:22 -0400
From:   Qian Cai <quic_qiancai@...cinc.com>
To:     Ingo Molnar <mingo@...nel.org>
CC:     Linus Torvalds <torvalds@...ux-foundation.org>,
        <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        "Juri Lelli" <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        "Andrew Morton" <akpm@...ux-foundation.org>,
        Borislav Petkov <bp@...en8.de>,
        "Thomas Gleixner" <tglx@...utronix.de>,
        "Huang, Ying" <ying.huang@...el.com>
Subject: Re: [GIT PULL] scheduler updates for v5.18

On Mon, Mar 21, 2022 at 11:54:09AM +0100, Ingo Molnar wrote:
> Huang Ying (3):
>       sched/numa-balancing: Move some document to make it consistent with the code
>       sched/numa: Fix NUMA topology for systems with CPU-less nodes
>       sched/numa: Avoid migrating task to CPU-less node

Linus, I don't think you want to merge this as-is. This will introduce a
kernel crash on arm64 NUMA as mentioned in this thread,

https://lore.kernel.org/lkml/Yh6H8SPSqpjv1dl7@qian

Ying sent an updated patch to fix the crash but is missing from this pull
request for some reasons.

https://lore.kernel.org/lkml/87y21lkxlv.fsf_-_@yhuang6-desk2.ccr.corp.intel.com/