Wido, I'm seeing this in Ubuntu 12.04 after commit
2014-02-10 01:19:16,793 DEBUG [kvm.resource.LibvirtComputingResource] (agentRequest-Handler-2:null) Volume /mnt/2fe9a944-505e-38cb-bf87-72623634be4a/e47e6501-c8ae-41a7-9abc-0f7fdad5fb30 can be resized by libvirt. Asking libvirt to resize the volume. 2014-02-10 01:19:16,800 WARN [cloud.agent.Agent] (agentRequest-Handler-2:null) Caught: java.lang.UnsatisfiedLinkError: Error looking up function 'virStorageVolResize': /usr/lib/libvirt.so.0.9.8: undefined symbol: virStorageVolResize at com.sun.jna.Function.<init>(Function.java:208) at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:536) at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:513) at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:499) at com.sun.jna.Library$Handler.invoke(Library.java:199) at com.sun.proxy.$Proxy0.virStorageVolResize(Unknown Source) at org.libvirt.StorageVol.resize(Unknown Source) at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.execute(LibvirtComputingResource.java:1808) at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.executeRequest(LibvirtComputingResource.java:1331) at com.cloud.agent.Agent.processRequest(Agent.java:501) at com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:808) at com.cloud.utils.nio.Task.run(Task.java:84) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744)