linux-kernel - Re: Query regarding deadlock involving cgroup_threadgroup_rwsem and cpu_hotplug

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Message-ID: <YuGTBLkFerUboctl@slm.duckdns.org>
Date:   Wed, 27 Jul 2022 09:33:24 -1000
From:   Tejun Heo <tj@...nel.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Imran Khan <imran.f.khan@...cle.com>, lizefan.x@...edance.com,
        hannes@...xchg.org, tglx@...utronix.de, steven.price@....com,
        peterz@...radead.org, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: Query regarding deadlock involving cgroup_threadgroup_rwsem and
 cpu_hotplug_lock

On Wed, Jul 20, 2022 at 08:05:03AM -1000, Tejun Heo wrote:
> On Wed, Jul 20, 2022 at 05:31:51PM +0530, Mukesh Ojha wrote:
> > Looks like these patches are the fixes.
> > 
> > https://lore.kernel.org/all/YtDvN0wJ6CKaEPN8@slm.duckdns.org/#r
> > 
> > Would let Tejun confirm this .
> 
> Yeah, looks like the same issue. I'll write up a patch later this week /
> early next unless someone beats me to it.

https://lore.kernel.org/lkml/20220705123705.764-1-xuewen.yan@unisoc.com/ is
the thread with the same issue. Let's follow up there.

Thanks.

-- 
tejun