netdev - Re: rcu build on bug

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Message-ID: <CAM_iQpV4WdrhVbZxO27FC8xbyW1wL1fGuxTsUVnkByKiDQ-8OA@mail.gmail.com>
Date:   Fri, 7 Aug 2020 11:11:24 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Jamal Hadi Salim <jhs@...atatu.com>
Cc:     Jiri Pirko <jiri@...nulli.us>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: rcu build on bug

On Fri, Aug 7, 2020 at 8:16 AM Jamal Hadi Salim <jhs@...atatu.com> wrote:
>
> I am guessing the hash table got too large.
> Smells like hard coded expectation?

Yeah, that is literally how kfree_rcu() works.

>
> How to fix?

I guess you just have to wrap up kfree() and pass it
to call_rcu().

Thanks.