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Date: Sun, 27 Nov 2011 11:09:46 -0600
From: Alan Cox <alc@rice.edu>
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To: Andriy Gapon <avg@FreeBSD.org>
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Cc: FreeBSD current <freebsd-current@FreeBSD.org>,
	freebsd-emulation@FreeBSD.org,
	=?ISO-8859-1?Q?Gustau_P=E9rez?= <gperez@entel.upc.edu>,
	Michael Butler <imb@protected-networks.net>
Subject: Re: Freeze with 10.0 and VirtualBox {4.1.4|4.1.6|4.1.51r38464}
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On 11/26/2011 06:44, Andriy Gapon wrote:
> on 26/11/2011 14:19 Gustau Pérez said the following:
>>    Starting Virtualbox in the console in headless mode allows to see what happens
>> and get a dump of the panic.
>>
>>    The messages I got were not the cause problem. The panic I was able to get
>> shows this:
>>
>>          http://pastebin.com/dHnB3Xh0
>>
>>    I can't get any further with core although I compiled virtualbox-ose-kmod with
>> debug symbols (I used make config to enable them, because I think -DWITH_DEBUG
>> does not work because kmk is used in the build process).
>>
>>    Any help will be appreciated.
> vm_phys_alloc_contig implementation has been recently changed and now it seems
> to require that vm_page_queue_free_mtx is held.
>

vm_page_alloc_contig() should be used instead.

Alan