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Date:   Thu, 20 May 2021 14:48:45 -0700
From:   Andrew Morton <akpm@linux-foundation.org>
To:     Martin Liu <liumartin@google.com>
Cc:     Nathan Chancellor <nathan@kernel.org>,
        Nick Desaulniers <ndesaulniers@google.com>,
        Petr Mladek <pmladek@suse.com>, Tejun Heo <tj@kernel.org>,
        minchan@google.com, www@google.com, davidchao@google.com,
        jenhaochen@google.com, linux-kernel@vger.kernel.org,
        clang-built-linux@googlegroups.com
Subject: Re: [PATCH] kthread: Fix kthread_mod_delayed_work vs
 kthread_cancel_delayed_work_sync race
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On Thu, 13 May 2021 14:54:57 +0800 Martin Liu <liumartin@google.com> wrote:

> We encountered a system hang issue while doing the tests. The callstack
> is as following
>
> ...
>
> Fixes: 37be45d49dec2 ("kthread: allow to cancel kthread work")

Thanks.  I added a cc:stable to this and shall hold it in -mm for a
couple of weeks to get exposure and testing before sending it to Linus
for 5.13.