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

[Avi Kivity <avi@redhat.com>]

Jan Kiszka wrote:
> Avi Kivity wrote:
>   
>> Gerd Hoffmann wrote:
>>     
>>> On 04/09/09 16:03, Avi Kivity wrote:
>>>       
>>>> I don't want multiplexed monitor sessions, at all.
>>>>         
>>> I'm very happy to finally see them.  Finally one can run vms with
>>> libvirt and *still* access the monitor for debugging and development
>>> purposes.
>>>
>>>       
>> Right, I like them for that purpose as well.  But not for ordinary control.
>>     
>
> How do you want to differentiate? What further complications would this
> bring us?
>   

I'm not sure I understand your questions.  Multiple monitor sessions are 
like multiple shell sessions.  I don't think a control program should 
use more than one session, but it should allow a developer to connect to 
issue 'info registers' and 'x/20i' commands.  Of course if a developer 
issues 'quit' or a hotunplug command, things will break.


>
> Please no more async notifications to the monitors. They are just ugly
> to parse, at least for us humans. I don't want to see any notification
> in the middle of my half-typed command e.g.
>   

If we can identify an interactive session, we might redraw the partial 
command after the prompt.

btw, why would a human enable notifications?  Note notifications enabled 
on the management session will only be displayed there.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.