linux-kernel - Re: [PATCH 0/6] Drain remote per-cpu directly v3

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Date:   Fri, 27 May 2022 08:58:26 -0400
From:   Qian Cai <quic_qiancai@...cinc.com>
To:     Mel Gorman <mgorman@...hsingularity.net>
CC:     Andrew Morton <akpm@...ux-foundation.org>,
        Nicolas Saenz Julienne <nsaenzju@...hat.com>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Michal Hocko <mhocko@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>
Subject: Re: [PATCH 0/6] Drain remote per-cpu directly v3

On Fri, May 27, 2022 at 09:39:46AM +0100, Mel Gorman wrote:
> Do you think it's related to the series and if so why? From the warning,
> it's not obvious to me why it would be given that it's a warning about a
> task not being inactive when it is expected to be.

I don't know. I just saw the 6/6 patch touched the mm_percpu_wq. Anyway,
I'll spend more time to reproduce, and see if we are lucky.