[virt-tools-list] [virt-manager PATCH] domain: treat VIR_DOMAIN_CRASHED not as runnable but rather as stoppable

[Chen Hanxiao]

At 2017-05-01 20:58:47, "Eric Blake" <eblake at redhat.com> wrote:

>On 04/30/2017 04:33 PM, Cole Robinson wrote:
>
>>>
>> 
>> Is there an easy way to move a qemu VM into the crashed state? So I can test
>> 
>> IIRC this logic was based on how old xen behaved, crashed was really a shutoff
>> type of state, but my recollection is fuzzy.
>
>I think you can use the pvpanic device to achieve that, although I
>haven't attempted it myself any time recently.
>

Yes, pvpanic device could help:


1) add a pvpanic device
2) change <on_crash> from restart to:
    <on_crash>preserve</on_crash>
3) use  sysrq-trigger to crash the guest.

Regards,
- Chen