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Date: Wed, 15 May 2013 19:11:48 +1000
From: Lawrence Stewart <lstewart@freebsd.org>
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To: Computer Network Man <comnetboy@gmail.com>
Subject: Re: A problem with alq module!
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On 05/13/13 16:37, Computer Network Man wrote:
> Dear Guys;
> In a fresh FreeBSD 9 or 9.1 Release if you just run these commands:
> # kldload alq
> # kldunload alq
> # init 0 or shutdown -p now
> it will panic!
> maybe it's a bug.
> We have a module which uses alq API's.
>     MODULE_DEPEND(mymodule, alq, 1, 1, 1)
> when our module starts, loads alq. and when it stops, unloads alq. So after
> starting and stoping our module and shutdown, we have panic.
> any opinion in this regard would be appreciated.

Please test this patch:

http://people.freebsd.org/~lstewart/patches/misc/alq_deregister_eventhandler_10.x.r250136.diff

Cheers,
Lawrence