[libvirt] Re: [Qemu-devel] [PATCH 1/6] Allow multiple monitor devices (v2)

Anthony Liguori aliguori at us.ibm.com
Thu Apr 9 14:13:05 UTC 2009

Avi Kivity wrote:
> Anthony Liguori wrote:
>> Avi Kivity wrote:
>>>  hotplug disk
>>>  -ENOSPC on disk
>>> It's true that events don't correlate directly to commands, but they 
>>> do correlate to the state of the system and that is affected by 
>>> commands.
>> events are time stamped.  In non-human mode, I think command 
>> responses should be time stamped too so that a management tool knows 
>> when the event was generated and can correlate the system state to 
>> the particular event.
> Timestamping doesn't help since the command could have been delayed in 
> the monitor socket.
> Further, we're now so deep down the complexity spiral that it has now 
> become the most complicated piece of code in the entire system.

You certainly cannot believe that, can you?

>   Surely the best way to synchronize events is to keep them on one 
> timeline?

Can you show exactly how you would expect things to work in the monitor 
output?  I'm having a hard time understanding what you're suggesting.


Anthony Liguori

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