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Date: Wed, 25 Dec 2013 23:48:17 -0800
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Subject: Re: igb / buf_ring panic: buf already enqueue at
From: hiren panchasara <hiren.panchasara@gmail.com>
To: Andriy Gapon <avg@freebsd.org>
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On Wed, Dec 25, 2013 at 11:18 PM, Andriy Gapon <avg@freebsd.org> wrote:
> Unread portion of the kernel message buffer:
> panic: buf=0xfffffe0cfe9a0600 already enqueue at 1259 prod=1260 cons=1259

A similar report:

http://freebsd.1045724.n5.nabble.com/igb-4-panic-already-enqueue-td5847439.html

I think http://svnweb.freebsd.org/base?view=revision&revision=256200
has the fix.

cheers,
Hiren