[ovirt-users] Remove Host Device Error

[gsswzt at pku.edu.cn]

 Hi,

I got this log in /var/log/ovirt-engine/engine.log, when I remove a host pass through SCSI device in VM.

2018-04-28 12:23:14,568+08 ERROR [org.ovirt.engine.core.bll.hostdev.RemoveVmHostDevicesCommand] (default task-9) [7d10eb49-328e-4cde-89b9-3f3e7e9d3666] Command 'org.ovirt.engine.core.bll.hostdev.RemoveVmHostDevicesCommand' failed: null
2018-04-28 12:23:14,568+08 ERROR [org.ovirt.engine.core.bll.hostdev.RemoveVmHostDevicesCommand] (default task-9) [7d10eb49-328e-4cde-89b9-3f3e7e9d3666] Exception: java.lang.NullPointerException
        at org.ovirt.engine.core.bll.hostdev.RemoveVmHostDevicesCommand.executeCommand(RemoveVmHostDevicesCommand.java:64) [bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.executeWithoutTransaction(CommandBase.java:1205) [bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.executeActionInTransactionScope(CommandBase.java:1345) [bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.runInTransaction(CommandBase.java:1987) [bll.jar:]
        at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInNewTransaction(TransactionSupport.java:202) [utils.jar:]
        at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInRequired(TransactionSupport.java:137) [utils.jar:]
        at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInScope(TransactionSupport.java:105) [utils.jar:]
        at org.ovirt.engine.core.bll.CommandBase.execute(CommandBase.java:1405) [bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.executeAction(CommandBase.java:412) [bll.jar:]
        at org.ovirt.engine.core.bll.executor.DefaultBackendActionExecutor.execute(DefaultBackendActionExecutor.java:13) [bll.jar:]
        at org.ovirt.engine.core.bll.Backend.runAction(Backend.java:509) [bll.jar:]
        at org.ovirt.engine.core.bll.Backend.runActionImpl(Backend.java:491) [bll.jar:]
        at org.ovirt.engine.core.bll.Backend.runAction(Backend.java:444) [bll.jar:]
        at sun.reflect.GeneratedMethodAccessor370.invoke(Unknown Source) [:1.8.0_161]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_161]
        at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_161]

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