From owner-freebsd-current@FreeBSD.ORG  Wed Jul 28 13:08:48 2010
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To: Hans Petter Selasky <hselasky@c2i.net>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Wed, 28 Jul 2010 10:56:43 +0200."
	<201007281056.43100.hselasky@c2i.net> 
Date: Wed, 28 Jul 2010 12:51:27 +0000
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Cc: freebsd-current@freebsd.org
Subject: Re: mmap() problem 
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In message <201007281056.43100.hselasky@c2i.net>, Hans Petter Selasky writes:

>When is it safe to free memory which has been mmapped to a user-space 
>application? After close() or during close() or before close() or when the 
>process/thread terminates?

Assuming you mean memory activated via devsw->mmap:  never.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.