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Date:      Mon, 9 Mar 2009 08:21:25 -0400
From:      John Baldwin <jhb@freebsd.org>
To:        freebsd-hackers@freebsd.org
Cc:        Alexej Sokolov <bsd.quest@googlemail.com>
Subject:   Re: wrong data in remapped buffer
Message-ID:  <200903090821.25871.jhb@freebsd.org>
In-Reply-To: <671bb5fc0903060813s284673e2t4d3c77b0ed6abc54@mail.gmail.com>
References:  <671bb5fc0903060813s284673e2t4d3c77b0ed6abc54@mail.gmail.com>

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On Friday 06 March 2009 11:13:38 am Alexej Sokolov wrote:
> Hello,
> I try to MALLOC a buffer in kern, then remap it with vm_map_find(), to space
> of user process.
> Some times the remapped buffer in user space contain incorrect data.

What architecture are you using?  On some archs like amd64, small mallocs (<= 
PAGE_SIZE) don't use the kmem_map or kmem_object.

-- 
John Baldwin



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