I use centos 7 and juno on my stend. At first, all instances can be created, but maked the exception kernel panic. But after reboot, I worked. But now, all instances after create, the guest os cause kernel panic. I use nested virtualization, and use stend inside VmWare Vsphere.

This is kernel panic of sysrecueCD: http://s18.postimg.org/9xtseeezt/image.png (image description)

Also, cirros-0.3.3 has panic too.

But the Centos 6 instance not panic, but freeze:

http://s15.postimg.org/48rquuzaz/image.png (image description)

How I can fix this problem? .