Yesterday i've started the update process for my system...so far, so good.
After a while
emerge finished successfully...of course with a lot of messages, even some messages (from libvirt) that in my kernel config some features are missing e.g.
[...] CONFIG_DEVPTS_MULTIPLE_INSTANCES CONFIG_VETH CONFIG_MACVLAN CONFIG_NETFILTER_XT_TARGET_CHECKSUM CONFIG_NETFILTER_ADVANCED CONFIG_BRIDGE_NF_EBTABLES [...]
As usually i've ignored these messages :( After a reboot i try'd to start one of my several VMs - without success. Only with a error message
Could not access KVM kernel module: Permission denied failed to initialize KVM: Permission denied No accelerator found!
Uhm what is this now? I've try'd to start qemu-kvm on a shell..that worked. So it must be anything with libvirt and qemu-kvm. After some research on my system i've found out that
qemu-kvm try'd to start the VMs as the user
/dev/kvm belongs to
Adding the user
qemu to the group
kvm should help
gpasswd -a qemu kvm
Maybe this is Bug in the ebuild file!?