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Date: Fri, 20 Jun 2014 09:51:55 +0200
From: Hans Petter Selasky <hps@selasky.org>
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To: "Lundberg, Johannes" <johannes@brilliantservice.co.jp>, 
 FreeBSD Current <freebsd-current@freebsd.org>
Subject: Re: ucom_free Fatal trap on shutdown / module unload
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On 06/20/14 04:25, Lundberg, Johannes wrote:
> Hi
>
> I'm getting this error on 11-CURRENT amd64 (snapshot from June). (see
> attached image)
> Worked fine with 10 I think..
>
> The ucom module is loaded as a dependency by the uhso module.
>
> Any clues?
> --
> Johannes Lundberg
>
>
> [image: Inline image 1]
>

Hi,

Possibly something similar to what was done in USB audio that 
DRIVER_MODULE_ORDERED() needs to be used instead of DRIVER_MODULE().

--HPS