netdev - Re: pegged softirq and NAPI race (?)

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Message-ID: <CANn89iLFBJjFgFHZUZb9xXXuN39SwB8Fn3AkgSon8M1w_X_fwQ@mail.gmail.com>
Date:   Tue, 18 Sep 2018 14:46:48 -0700
From:   Eric Dumazet <edumazet@...gle.com>
To:     songliubraving@...com
Cc:     Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Alexei Starovoitov <ast@...com>,
        netdev <netdev@...r.kernel.org>,
        Alexander Duyck <alexander.h.duyck@...el.com>,
        michael.chan@...adcom.com, kernel-team <Kernel-team@...com>
Subject: Re: pegged softirq and NAPI race (?)

On Tue, Sep 18, 2018 at 2:41 PM Song Liu <songliubraving@...com> wrote:
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> I would submit the patch if Eric prefer not to. :)


Hmmm.... maybe the bug is really in ixgbe_netpoll()

This whole ndo_poll_controller() stuff  is crazy.

All sane implementations should only call napi_schedule()