Created attachment 576235 [details]
engine.log

Environment:
Devel env, last commit's hash: 85a3e1bed316d698b9f0825e77ff4130099d8297

I did the following:
1. Create VM with few disks and same snapshots
2. Move few disks to another storage domain
3. Create one more snapshot

From the log:
2012-04-09 17:09:57,149 WARN  [org.ovirt.engine.core.dal.job.ExecutionMessageDirector] (http--0.0.0.0-8080-4) [5c7b11cb] The message key AddVmFromSnapshot is missing from bundles/ExecutionMessages
2012-04-09 17:09:57,169 INFO  [org.ovirt.engine.core.bll.AddVmFromSnapshotCommand] (http--0.0.0.0-8080-4) [5c7b11cb] Lock Acquired to object EngineLock [exclusiveLocks= key: org.ovirt.engine.core.bll.AddVmFromSnapshotCommand value: f9efb
a50-d20d-467f-96b3-758fa7abed84
, sharedLocks= ]
2012-04-09 17:09:57,537 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.IsValidVDSCommand] (http--0.0.0.0-8080-4) START, IsValidVDSCommand(storagePoolId = 25ec7206-8cb5-4912-b963-860311ff2be5, ignoreFailoverLimit = false, compatabilityV
ersion = null), log id: 7b869098
2012-04-09 17:09:57,538 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.IsValidVDSCommand] (http--0.0.0.0-8080-4) FINISH, IsValidVDSCommand, return: true, log id: 7b869098
2012-04-09 17:09:57,539 ERROR [org.ovirt.engine.core.bll.AddVmFromSnapshotCommand] (http--0.0.0.0-8080-4) Error during CanDoActionFailure.: java.lang.NullPointerException
        at org.ovirt.engine.core.bll.AddVmFromSnapshotCommand.checkImageConfiguration(AddVmFromSnapshotCommand.java:341) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.AddVmAndCloneImageCommand.canDoAction(AddVmAndCloneImageCommand.java:114) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.AddVmFromSnapshotCommand.canDoAction(AddVmFromSnapshotCommand.java:259) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.InternalCanDoAction(CommandBase.java:475) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.ExecuteAction(CommandBase.java:250) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.Backend.runActionImpl(Backend.java:327) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.Backend.RunAction(Backend.java:287) [engine-bll.jar:]
        at sun.reflect.GeneratedMethodAccessor273.invoke(Unknown Source) [:1.6.0_22]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_22]
        at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_22]
        at org.jboss.as.ee.component.ManagedReferenceMethodInterceptorFactory$ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptorFactory.java:72) [jboss-as-ee-7.1.0.Beta1b.jar:]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:374) [jboss-invocation-1.1.1.Final.jar:]
        at org.ovirt.engine.core.utils.ThreadLocalSessionCleanerInterceptor.injectWebContextToThreadLocal(ThreadLocalSessionCleanerInterceptor.java:11) [engine-utils.jar:]
        at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) [:1.6.0_22]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_22]
        at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_22]
        at org.jboss.as.ee.component.ManagedReferenceLifecycleMethodInterceptorFactory$ManagedReferenceLifecycleMethodInterceptor.processInvocation(ManagedReferenceLifecycleMethodInterceptorFactory.java:123) [jboss-as-ee-7.1.0.Beta1b.jar
:]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.1.0.Beta1b.jar:]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [jboss-as-ee-7.1.0.Beta1b.jar:]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.as.ejb3.component.singleton.SingletonComponentInstanceAssociationInterceptor.processInvocation(SingletonComponentInstanceAssociationInterceptor.java:53) [jboss-as-ejb3-7.1.0.Beta1b.jar:]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInNoTx(CMTTxInterceptor.java:221) [jboss-as-ejb3-7.1.0.Beta1b.jar:]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.supports(CMTTxInterceptor.java:367) [jboss-as-ejb3-7.1.0.Beta1b.jar:]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:205) [jboss-as-ejb3-7.1.0.Beta1b.jar:]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3-7.1.0.Beta1b.jar:]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:44) [jboss-as-ee-7.1.0.Beta1b.jar:]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:55) [jboss-as-ejb3-7.1.0.Beta1b.jar:]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee-7.1.0.Beta1b.jar:]
        at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:173) [jboss-as-ee-7.1.0.Beta1b.jar:]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:]
        at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:72) [jboss-as-ee-7.1.0.Beta1b.jar:]
        at org.ovirt.engine.core.common.interfaces.BackendLocal$$$view8.RunAction(Unknown Source) [engine-common.jar:]
        at org.ovirt.engine.ui.frontend.server.gwt.GenericApiGWTServiceImpl.RunAction(GenericApiGWTServiceImpl.java:120)
        at sun.reflect.GeneratedMethodAccessor272.invoke(Unknown Source) [:1.6.0_22]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_22]
        at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_22]
        at com.google.gwt.rpc.server.RPC.invokeAndStreamResponse(RPC.java:196)
        at com.google.gwt.rpc.server.RpcServlet.processCall(RpcServlet.java:161)
        at com.google.gwt.rpc.server.RpcServlet.processPost(RpcServlet.java:222)
        at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
        at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:151)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
        at java.lang.Thread.run(Thread.java:679) [:1.6.0_22]

2012-04-09 17:09:57,560 INFO  [org.ovirt.engine.core.bll.AddVmFromSnapshotCommand] (http--0.0.0.0-8080-4) Lock freed to object EngineLock [exclusiveLocks= key: org.ovirt.engine.core.bll.AddVmFromSnapshotCommand value: f9efba50-d20d-467f-96b3-758fa7abed84
, sharedLocks= ]