It seems that those Apparmor denials are responsible for severe slowdown
of guests boot when the host boots up.
This simple fix makes the guests boot swiftly:
# diff -Naur /etc/apparmor.d/usr.lib.libvirt.virt-aa-helper.orig
/etc/apparmor.d/usr.lib.libvirt.virt-aa-helper
--- /etc/apparmor.d/usr.lib.libvirt.virt-aa-helper.orig 2016-08-14
10:32:27.051646248 -0400
+++ /etc/apparmor.d/usr.lib.libvirt.virt-aa-helper 2016-08-14
10:32:20.019646323 -0400
@@ -66,4 +66,9 @@
/**.vmdk r,
/**.[iI][sS][oO] r,
/**/disk{,.*} r,
+
+ # XXX: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1546674
+ /etc/hosts r,
+ /etc/host.conf r,
+ /etc/nsswitch.conf r,
}
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https://bugs.launchpad.net/bugs/1546674
Title:
virt-aa-helper Apparmor profile missing rules for name resolution
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