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From: Eric Dumazet <edumazet@google.com>
Date: Wed, 16 Nov 2016 10:49:06 -0800
Message-ID: <CANn89iK=yTkVKi9Wnx3ZXWZSOQc6KJT-FcE7H-5+QB85GE4=Vw@mail.gmail.com>
Subject: Re: Regression: Failed boots bisected to 4cd13c21b207 "softirq: Let
 ksoftirqd do its job"
To: Brian Starkey <brian.starkey@arm.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
        Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Alexander Potapenko <glider@google.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
        Thomas Gleixner <tglx@linutronix.de>
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On Wed, Nov 16, 2016 at 10:01 AM, Brian Starkey <brian.starkey@arm.com> wrote:

>
> The smc91x driver does seem to have some trickiness around softirqs.
> I'm not familiar with net drivers, but I'll see if I can figure
> anything out there.

Oh this code looks ugly :(

Do you have CONFIG_SMP=y or not ?