VirtualBox mangles memory

[Martin Birgmeier]

This did not happen when the machine was running FreeBSD 9.2 with virtualbox-ose-4.3.20 installed. So I would not qualify this as "known behavior".

One server has 16G main memory, a VM gets 3G. The other has 8G main mem and again 3G allocated to the VM.

This is definitely a bug in how VirtualBox handles memory on FreeBSD 10. I am pretty sure that something changed in FBSD 10 which was not properly taken care of in VB.

-- Martin



On 09/21/15 22:10, Mark Felder wrote:
>
> On Sun, Sep 20, 2015, at 06:20, Martin Birgmeier wrote:
>> On machines where VirtualBox is running, I get memory allocation errors.
>>
>> 'dd' aborts with 'dd: stdout: Cannot allocate memory'
>>
>> 'zfs send' aborts with 'internal error: Cannot allocate memory'
>>
>> I have created https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195970
>> to track this.
>>
>> Could a knowledgeable person please have a look into this?
>>
>> FreeBSD 10.2, VirtualBox 4.3.30
>>
>> -- Martin
>>
> I'm not an expert, but I think this is known behavior. Virtualbox
> requires a huge contiguous chunk of memory for the VM and that's
> probably what you're running into.
>
> Can you give more information about the specs of the server itself and
> the amount of resources allocated to VMs?
>