Gerd Hoffmann wrote:
> Avi Kivity wrote:
>   
>> Agree, but should try a "quit" monitor command first.  Signals are racy, 
>> like anything that deals with pids (qemu dies, another process is 
>> fork()ed with the same pid, libvirt kills it).
>>     
>
> There is no race in that specific case because qemu is started by
> libvirtd.  libvirtd can savely kill qemu as long as it hasn't collected
> the exit status via waitpid().  While the qemu zombie hangs around the
> pid will not be reused.
>
>   

Ah good.  It does mean that the we can't recover from an untimely 
libvirtd death, but I'd consider it a reasonable tradeoff.

-- 
Any sufficiently difficult bug is indistinguishable from a feature.


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