[Bug 1528136] [NEW] [1.2.16] Failed to initialize KVM & other internal errors

Mon Dec 21 08:53:08 UTC 2015

Public bug reported:

On Ubuntu Server 4.2.0-22-generic #27-Ubuntu SMP Thu Dec 17 22:57:08 UTC
2015 x86_64 x86_64 x86_64 GNU/Linux

sudo systemctl status libvirt-bin
● libvirt-bin.service - Virtualization daemon
   Loaded: loaded (/lib/systemd/system/libvirt-bin.service; enabled; vendor preset: enabled)
   Active: active (running) since Mon 2015-12-21 09:47:02 CET; 3s ago
     Docs: man:libvirtd(8)
           http://libvirt.org
 Main PID: 20980 (libvirtd)
   CGroup: /system.slice/libvirt-bin.service
           └─20980 /usr/sbin/libvirtd

Dec 21 09:47:02 msi-ge60-ubuntu libvirtd[20980]: libvirt version: 1.2.16, package: 1.2.16-2ubuntu11.15.10.1
Dec 21 09:47:02 msi-ge60-ubuntu libvirtd[20980]: internal error: Unknown qemu capabilities flag vhost-user-multiqueue
Dec 21 09:47:02 msi-ge60-ubuntu libvirtd[20980]: Failed to load cached caps from '/var/cache/libvirt/qemu/capabilities/2d1567fa77de202a8d45125ec58eadc9538916e0d21b9ecbc092...-multiqueue
Dec 21 09:47:03 msi-ge60-ubuntu libvirtd[20980]: internal error: QEMU / QMP failed: Could not access KVM kernel module: Permission denied
                                                 failed to initialize KVM: Permission denied
Dec 21 09:47:03 msi-ge60-ubuntu libvirtd[20980]: Failed to probe capabilities for /usr/bin/kvm: internal error: QEMU / QMP failed: Could not access KVM kernel module: Permission denied
                                                 failed to initialize KVM: Permission denied
Dec 21 09:47:03 msi-ge60-ubuntu libvirtd[20980]: internal error: Unknown qemu capabilities flag vhost-user-multiqueue
Dec 21 09:47:03 msi-ge60-ubuntu libvirtd[20980]: Failed to load cached caps from '/var/cache/libvirt/qemu/capabilities/2d1567fa77de202a8d45125ec58eadc9538916e0d21b9ecbc092...-multiqueue
Dec 21 09:47:03 msi-ge60-ubuntu libvirtd[20980]: internal error: QEMU / QMP failed: Could not access KVM kernel module: Permission denied
                                                 failed to initialize KVM: Permission denied
Dec 21 09:47:03 msi-ge60-ubuntu libvirtd[20980]: Failed to probe capabilities for /usr/bin/kvm: internal error: QEMU / QMP failed: Could not access KVM kernel module: Permission denied
                                                 failed to initialize KVM: Permission denied
Dec 21 09:47:03 msi-ge60-ubuntu libvirtd[20980]: error creating bridge interface virbr0: File exists
Hint: Some lines were ellipsized, use -l to show in full.

** Affects: libvirt (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1528136

Title:
  [1.2.16] Failed to initialize KVM & other internal errors

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