From owner-freebsd-questions@freebsd.org  Wed Jun 14 01:11:07 2017
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Date: Wed, 14 Jun 2017 09:13:56 +0800
From: Jia-Ju Bai <baijiaju1990@163.com>
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To: matthew@freebsd.org
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Subject: Re: Re: A question about in lock usage in FreeBSD
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>  Hi,
>
>  I think you'll get better results if you ask your question on the
>  freebsd-hackers at freebsd.org  <https://lists.freebsd.org/mailman/listinfo/freebsd-questions>  mailing list.  That way it will be seen by
>  people who are familiar with programming drivers and other internals of
>  the kernel and who will know precisely how to answer you.
>
>  	Cheers,
>
>  	Matthew

Thanks, Matthew.
I will post my question to freebsd-hackers.

Jia-Ju Bai