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Date:      Mon, 11 Jul 2011 19:08:36 +0700
From:      Eugene Grosbein <egrosbein@rdtc.ru>
To:        Vlad Galu <dudu@dudu.ro>
Cc:        "net@freebsd.org" <net@freebsd.org>
Subject:   Re: Repeating kernel panic within dummynet
Message-ID:  <4E1AE7C4.60609@rdtc.ru>
In-Reply-To: <30BDDC28-275C-4DAA-9AC8-621F36A19D3B@dudu.ro>
References:  <4E1AE1AD.4020907@rdtc.ru> <833EECF8-245B-4085-B853-AC753DBE0D19@dudu.ro> <4E1AE3C8.8030708@rdtc.ru> <30BDDC28-275C-4DAA-9AC8-621F36A19D3B@dudu.ro>

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11.07.2011 19:02, Vlad Galu пишет:

> net.isr.bindthreads=1
> 
> I'm not sure how and if that would help your particular setup, but it did so in Adrian Minta's recent netgraph/mpd experiments. According to an off-list chat I had with him, the machine would panic unless the ISRs were bound.

I disable ISR parallelism for my mpd routers using:

net.isr.direct=1
net.isr.direct_force=1

At the other hand, there are other queues where traffic got delayed, not ISR only.
Dummynet itself is an example. The router still panices with INVARIANTS too often.

Eugene Grosbein



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