Re: [Qemu-devel] incorrect memory size inside vm

[Andrey Korolyov]

On Fri, Jun 19, 2015 at 2:14 PM, Piotr Rybicki
<address@hidden> wrote:
> Hello.
>
> Actually it was my mistake.
> After some time using memory in guest (find /, cp bigfine, etc), res size of
> qemu process shrinks to expected value.
>
> Sorry for disturbing.
> Now i don't see any memory waste in guest and host when using 'base' memory
> + 'dimm' memory.
>
> Although i have one issue.
>
> When i start qemu via libvirt with 16GB mem and 1G current mem:
> (...)
>   <memory unit='KiB'>16777216</memory>
>   <currentMemory unit='KiB'>1048576</currentMemory>
> (...)
>
> Qemu starts, and balloon can't free memmory, so guest doesn't boot (It hangs
> or is looped in ' virtio_balloon virtio2: Out of puff! Can't get 1 pages').
> I think this is because dimm memmory is not yet onlined, and balloon already
> tries to shring memory in guest.
>
> Best regards
> Piotr Rybicki
>
>
- libvir@

Please don`t top-post in technical mailing lists. Do you have a
crashkernel-reserved area there in the boot arguments? What
distro/guest kernel are running in this guest and what is dimm
configuration?