linux-kernel - Re: [Bug] race condition at rebind

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Message-ID: <98d738ec5d7d32441f6e62278fff32201fd948de.camel@mediatek.com>
Date:   Thu, 21 Jul 2022 14:46:03 +0800
From:   Jing-Ting Wu <jing-ting.wu@...iatek.com>
To:     Michal Koutný <mkoutny@...e.com>
CC:     Tejun Heo <tj@...nel.org>, Johannes Weiner <hannes@...xchg.org>,
        "Zefan Li" <lizefan.x@...edance.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <cgroups@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        <wsd_upstream@...iatek.com>, <lixiong.liu@...iatek.com>,
        <wenju.xu@...iatek.com>, <jonathan.jmchen@...iatek.com>
Subject: Re: [Bug] race condition at rebind_subsystems()

On Tue, 2022-07-19 at 15:35 +0200, Michal Koutný wrote:
> On Mon, Jul 18, 2022 at 03:44:21PM +0800, Jing-Ting Wu <
> jing-ting.wu@...iatek.com> wrote:
> > Accroding your description, is the following patch corrent?
> 
> Yes, this is what I meant (i.e. grace period before invalidating the
> removed rstat_css_node).
> 
> > If the patch is correct, we will add this patch to our stability
> > test.
> > And we will continue to observe whether the problem is solved.
> 
> It'd be great to have such confirmation.

Thanks for confirm the patch.
We already add patch to our stability test.
We will reply mail if we have any update.

> 
> Thanks,
> Michal



Best regards,
Jing-Ting Wu