Re: initiating linux guest shutdown from host

[Avi Kivity <avi@qumranet.com>]

extmaillist@linuxbox.cz wrote:
>
>
> On Wed, 23 Apr 2008, Luca Tettamanti wrote:
>
>   
>> libvirt sends "system_powerdown" to the monitor; is ACPI is enabled
>> then the guest sees the event but it's free to ignore it (it's the
>> same as pressing the power button on a real machine: the OS sees the
>> event and may start the shutdown, ask the user what to do, ignore it,
>> etc.); e.g. the default ACPI script of the debian stops the desktop
>> manager if it's running but doesn't shut down the machine. If the ACPI
>> daemon is not running in the guest then the event is lost...
>>
>> Luca
>>
>>
>>     
>
> Hi Luca,
> thanks for the answer. Well, then it works as I expected. I already tried 
> starting acpid in debug mode, but system doesn't seem to receive any 
> event, although according to dmesg, ACPI itself seems to work (and I can 
> poweroff from the guest)
>   

A recent regression caused powerdown SCI to stop working.  I've reverted 
this and it should work again in kvm-68.

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


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