[Bug 820339] [NEW] Live migration fails

[Tim Bordemann]

Public bug reported:

I have two identically configured hosts, based on Natty. When trying to do a live migration with following command
virsh migrate --live --copy-storage-inc admin qemu+ssh://root@remus/system --persistent --verbose
it stops with the error message "error: operation failed: migration job: unexpectedly failed".
On the second host libvirt reports

Aug  3 14:29:22 remus libvirtd: 14:29:22.451: 1223: info : virSecurityDACSetOwnership:99 : Setting DAC user and group on '/kvm-images/admin.img' to '0:0'
Aug  3 14:29:22 remus kernel: [ 1821.968789] audit_printk_skb: 30 callbacks suppressed
Aug  3 14:29:22 remus kernel: [ 1821.968791] type=1400 audit(1312374562.648:20): apparmor="STATUS" operation="profile_load" name="libvirt-f675d59e-6f84-baa1-8f20-5df1e410fb21" pid=1928 comm="apparmor_parser"
Aug  3 14:29:23 remus libvirtd: 14:29:23.153: 1223: info : brProbeVnetHdr:454 : Enabling IFF_VNET_HDR
Aug  3 14:29:23 remus kernel: [ 1822.469389] device vnet0 entered promiscuous mode
Aug  3 14:29:23 remus kernel: [ 1822.471155] br100: port 2(vnet0) entering forwarding state
Aug  3 14:29:23 remus kernel: [ 1822.471159] br100: port 2(vnet0) entering forwarding state
Aug  3 14:29:26 remus libvirtd: 14:29:26.538: 1224: info : virSecurityDACRestoreSecurityFileLabel:139 : Restoring DAC user and group on '/kvm-images/admin.img'
Aug  3 14:29:26 remus libvirtd: 14:29:26.538: 1224: info : virSecurityDACSetOwnership:99 : Setting DAC user and group on '/kvm-images/admin.img' to '0:0'
Aug  3 14:29:26 remus kernel: [ 1826.021058] type=1400 audit(1312374566.698:21): apparmor="STATUS" operation="profile_remove" name="libvirt-f675d59e-6f84-baa1-8f20-5df1e410fb21" pid=1952 comm="apparmor_parser"
Aug  3 14:29:26 remus kernel: [ 1826.258856] br100: port 2(vnet0) entering forwarding state
Aug  3 14:29:27 remus kernel: [ 1826.344260] device vnet0 left promiscuous mode
Aug  3 14:29:27 remus kernel: [ 1826.344265] br100: port 2(vnet0) entering disabled state

I can't find any error messages, does anyone have any suggestions?

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

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Title:
  Live migration fails

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