Re: [Qemu-devel] [PATCH] Stop VM on ENOSPC error

[Kevin Wolf <kwolf@suse.de>]

Gleb Natapov schrieb:
> On Wed, Jan 14, 2009 at 02:20:20PM +0200, Dor Laor wrote:
>> Daniel P. Berrange wrote:
>>> On Wed, Jan 14, 2009 at 02:03:58PM +0200, Gleb Natapov wrote:
>>>   
>>>> And repeat last IDE command after VM restart.
>>>>     
>>> How is a management application to determine when this occurs ?
>>> It is not desirable to poll for whether the VM is stopped all
>>> the time, and we need a reliable way to detect this, otherwise
>>> the user and/or mgmt app will just think their VM has hung. 
>>>
>>> Thus I'd suggest we need an async notification of this event,
>>> and only enable this behaviour if the app controlling QEMU has
>>> explicitly enabled this notification / feature.
>>>
>>>   
>> Correct. There is async message for it (==printf...).
>> Once the libmonitor is introduced it will be real async event
> There is not printf in this version of the patch, but I can add it if
> needed.

I think you should add it. Not only because of management applications
but also for the user. I for one would be at least a bit confused if my
VM stopped automatically without saying anything about the reason.

Kevin