Re: qemu-1.5.0 savevm error -95 while writing vm with ceph-rbd as storage-backend

[Oliver Francke <Oliver.Francke@filoo.de>]

Well,

On 05/24/2013 05:08 PM, Wido den Hollander wrote:
> On 05/24/2013 09:46 AM, Oliver Francke wrote:
>> Hi,
>>
>> with a running VM I encounter this strange behaviour, former
>> qemu-versions don't show up such an error.
>> Perhaps this comes from the rbd-backend in qemu-1.5.0 in combination
>> with ceph-0.56.6? Therefore my
>> crosspost.
>>
>> Even if I have no real live-snapshot avail - they know of this
>> restriction -, it's more work for the customers
>> to perform a shutdown before the wonna do some changes to their VM ;)
>>
>
> Doesn't Qemu try to save the memory state to RBD here as well? That 
> doesn't work and fails.

true, but that should qemu try in version 1.4.x, too, but that succeeds ;)

Tried to figure out some corresponding QMP-commands, found some 
references like:

{"execute": "snapshot-create", "arguments": {"name": "vm_before_upgrade"} }


but that fails with unknown command.

The convenience for a monitoring-command would be, that qemu cares for 
all mounted block-devs, well,
it _should_ exclude some "ide-cd0" devices, where I get another error 
with an inserted CD, but... other error,

Oliver.

>
>> Any hints welcome,
>>
>> Oliver.
>>
>
>


-- 

Oliver Francke

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