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Date: Wed, 07 Jan 2009 09:54:23 -0800
From: Sam Leffler <sam@freebsd.org>
Organization: FreeBSD Project
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To: Yony Yossef <yonyossef.lists@gmail.com>
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Cc: Eitan Shefi <eitans@mellanox.co.il>,
	'Angelo Turetta' <aturetta@bestunion.it>, freebsd-net@freebsd.org
Subject: Re: VLAN interface management - unloading carrying driver hangs the
 machine
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Yony Yossef wrote:
>> Yony Yossef wrote:
>>     
>>> /sbin/ifconfig vlan3653 create
>>>
>>> Problem is when I assign an IP to the vlan interface.
>>> In that case, unloading the driver results in hanging the host.
>>>  
>>> Does it sound familiar to anybody?
>>>       
>> Well, surely I'd expect problems by doing so.
>> The correct way is to
>>
>> 	/sbin/ifconfig vlan3653 destroy
>>
>> before unloading the driver.
>>
>> Angelo.
>>     
>
> Thanks, I didn't know freebsd does not allow it.
>
>   
This seems wrong. Someone should disallow the driver detach/unload. 
Please file a PR about this so the issue is not lost.

Sam