[Qemu-discuss] Disk Caching when domain is suspended.

[Matthew Schumacher]

Qemu devs,

I have a process where I suspend a domain, then migrate some of it's 
disk elsewhere, then live migrate (to copy cpu state and memory) the 
domain to another host and resume.  The migration is marked unsafe in 
libvirt because disk caching is enabled even though the domain is in the 
suspend state.

Can someone confirm that the disk cache is flushed as part of the 
suspend process?  If not, it seems reasonable that you would want the 
disk completely quiesced while the domain was in the suspend state so 
that you can perform tasks without worry that the disk is still changing.

Thanks,
schu