On Wed, Jul 20, 2016 at 09:13:54 +0200, Boris Fiuczynski wrote: > This patch reverts commit 73e4e10e62e4b1aea64b317be96af5e5488007d7 > and thereby disabling the panic device autogeneration for S390 guests. > In addition tests are patched as well. > > The reverted commit breaks backwards compatibility of S390 guests. > As an example: A domain xml without a panic device can successfully > be used to define on two hosts with different libvirt versions. > Using this domain xml to define a domain on a host with libivrt v1.3.5 > makes it impossible to migrate the domain to a host with libvirt v1.3.4 > or older since libvirt v1.3.5 automatically added a panic device with > model s390 which libvirt v1.3.4 or older rejects as unknown model. In that case, the correct fix is not to revert this patch, but remove the pvpanic device from a migratable XML. Jirka -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list