Re: Memory ballooning deactivated by the guest

[Daniel Bareiro <daniel-listas@gmx.net>]

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Hi, Avi.

On Monday, 04 January 2010 11:30:23 +0200,
Avi Kivity wrote:

>> I'm using Linux 2.6.32.2 with qemu-kvm-0.12.1.1 and, testing memory
>> ballooning, I obtained the following message:
>>
>> root@ubuntu:~# telnet localhost 5001
>> Trying 127.0.0.1...
>> Connected to localhost.
>> Escape character is '^]'.
>> QEMU 0.12.1 monitor - type 'help' for more information
>> (qemu)
>> (qemu)
>> (qemu)
>> (qemu) info balloon
>> The balloon device has not been activated by the guest

> You need to add '-balloon virtio' to the qemu command line (the error
> message is incorrect).

What do you mean whereupon the error message is incorrect?

Before I didn't need to use '-balloon virtio', although this was when I
used kvm-88. This is a necessary requirement when using recent versions
of qemu-kvm?

If now it is necessary, it could be useful to indicate it in the online
documentation [1].

Thanks for your speedy reply.

Regards,
Daniel

[1] http://www.linux-kvm.org/page/Virtio
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