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Date: Fri, 08 Feb 2013 19:39:40 +1000
From: Peter Grehan <grehan@freebsd.org>
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To: Sevan / Venture37 <venture37@gmail.com>
Subject: Re: bhyve hangs on going multi user
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Hi Sevan,

>>> I can now make a guest panic if I assign 4GB or more RAM.
>>
>> What are the memory params you are using in this case ?
>
> I've not made any changes on the host such as reserving memory.
> I'm starting the VM like so:
  ...
> -m 4096

  Ah - that actually won't work. There has to be space for PCI MMIO 
decode below 4GB, so it's usually best to use up to say 2 or 3GB of RAM 
below the 4GB mark, leaving 1GB for PCI decode, and then put the 
remainder of your memory above 4G e.g. for 4GB total RAM, and using 2GB 
below 4G

  -m 2048 -M 2048

  and an example 8G system:

  -m 2048 -M 6144

  We should really error out on values too large for the '-m' parameter.

later,

Peter.