I'm partially happy about this bug report now: s390x/config.common.s390x:CONFIG_KVM=m
Is still a module rather than built-in on s390x. Unlike x86 there is only one implementation and it should be loaded by default. The trouble is, that it doesn't get autoloaded (and/or when libvirt-bin service tries to load it, it gets permission denied). Please set CONFIG_KVM=y, as without that libvirt does not just work(tm) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1532886 Title: s390x kernels are inconsistent for cloud stuff Status in linux package in Ubuntu: Fix Committed Status in linux source package in Xenial: Fix Committed Bug description: So to do virtual machine / cloudy stuff things in the kernel config, are not how one would expect them to be. Whilst investigating that I've went ahead to compare all our kernel configs. amd64/config.common.amd64:CONFIG_VIRTIO_BLK=y amd64/config.common.amd64:CONFIG_VIRTIO_NET=y arm64/config.common.arm64:CONFIG_VIRTIO_BLK=y arm64/config.common.arm64:CONFIG_VIRTIO_NET=y armhf/config.common.armhf:CONFIG_VIRTIO_BLK=y armhf/config.common.armhf:CONFIG_VIRTIO_NET=y i386/config.common.i386:CONFIG_VIRTIO_BLK=y i386/config.common.i386:CONFIG_VIRTIO_NET=y powerpc/config.common.powerpc:CONFIG_VIRTIO_BLK=y powerpc/config.common.powerpc:CONFIG_VIRTIO_NET=y ppc64el/config.common.ppc64el:CONFIG_VIRTIO_BLK=y ppc64el/config.common.ppc64el:CONFIG_VIRTIO_NET=y but... s390x/config.common.s390x:CONFIG_VIRTIO_BLK=m s390x/config.common.s390x:CONFIG_VIRTIO_NET=m It would make sense to set CONFIG_VIRTIO_BLK and _NET to "=y" on s390x. Also: amd64/config.common.amd64:CONFIG_KVM=m arm64/config.common.arm64:CONFIG_KVM=y armhf/config.common.armhf:CONFIG_KVM=y i386/config.common.i386:CONFIG_KVM=m powerpc/config.common.powerpc:CONFIG_KVM=y ppc64el/config.common.ppc64el:CONFIG_KVM=y s390x/config.common.s390x:CONFIG_KVM=m Is a bit of mixed bag... x86+s390x have it as a module, yet arm*+powerpc* have it built in? Maybe all arches should be =y ? another one: Is there something special about ZLIB_DEFLATE on s390x? amd64/config.common.amd64:CONFIG_ZLIB_DEFLATE=y arm64/config.common.arm64:CONFIG_ZLIB_DEFLATE=y armhf/config.common.armhf:CONFIG_ZLIB_DEFLATE=y i386/config.common.i386:CONFIG_ZLIB_DEFLATE=y powerpc/config.common.powerpc:CONFIG_ZLIB_DEFLATE=y ppc64el/config.common.ppc64el:CONFIG_ZLIB_DEFLATE=y s390x/config.common.s390x:CONFIG_ZLIB_DEFLATE=m To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1532886/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp