Pearl1594 opened a new issue, #13014:
URL: https://github.com/apache/cloudstack/issues/13014
### problem
When attempting to detach a volume from a running VM on KVM it times out
with the following exception:
```
2026-04-13 15:57:11,572 DEBUG [kvm.resource.LibvirtVMDef]
(AgentRequest-Handler-2:[]) (logid:4f27dc30) Using informed label [hdc] for
volume [null].
2026-04-13 15:57:11,573 DEBUG [kvm.storage.KVMStorageProcessor]
(AgentRequest-Handler-2:[]) (logid:4f27dc30) The hypervisor sent the detach
command, but it is still possible to identify the device
[/mnt/3e518e5c-22d5-3ad2-b036-a8847d93db12/883a6620-6638-4545-b19a-3f0687aefc67]
in the instance with UUID [69e2c19f-78a9-4f41-b6bd-30d8c6b3a586].
2026-04-13 15:57:12,575 DEBUG [kvm.resource.LibvirtVMDef]
(AgentRequest-Handler-2:[]) (logid:4f27dc30) Using informed label [hdc] for
volume [null].
2026-04-13 15:57:12,575 DEBUG [kvm.storage.KVMStorageProcessor]
(AgentRequest-Handler-2:[]) (logid:4f27dc30) The hypervisor sent the detach
command, but it is still possible to identify the device
[/mnt/3e518e5c-22d5-3ad2-b036-a8847d93db12/883a6620-6638-4545-b19a-3f0687aefc67]
in the instance with UUID [69e2c19f-78a9-4f41-b6bd-30d8c6b3a586].
2026-04-13 15:57:12,576 DEBUG [kvm.storage.KVMStorageProcessor]
(AgentRequest-Handler-2:[]) (logid:4f27dc30) Failed to detach volume [id: 4,
uuid: 883a6620-6638-4545-b19a-3f0687aefc67, name: v1, path:
883a6620-6638-4545-b19a-3f0687aefc67], due to
com.cloud.exception.InternalErrorException: Could not detach volume after
sending the command and waiting for [10000] milliseconds. Probably the VM does
not support the sent detach command or the device is busy at the moment. Try
again in a couple of minutes.
at
com.cloud.hypervisor.kvm.storage.KVMStorageProcessor.attachOrDetachDevice(KVMStorageProcessor.java:1323)
at
com.cloud.hypervisor.kvm.storage.KVMStorageProcessor.attachOrDetachDisk(KVMStorageProcessor.java:1588)
at
com.cloud.hypervisor.kvm.storage.KVMStorageProcessor.dettachVolume(KVMStorageProcessor.java:1681)
at
com.cloud.storage.resource.StorageSubsystemCommandHandlerBase.execute(StorageSubsystemCommandHandlerBase.java:178)
at
com.cloud.storage.resource.StorageSubsystemCommandHandlerBase.handleStorageCommands(StorageSubsystemCommandHandlerBase.java:73)
at
com.cloud.hypervisor.kvm.resource.wrapper.LibvirtStorageSubSystemCommandWrapper.execute(LibvirtStorageSubSystemCommandWrapper.java:36)
at
com.cloud.hypervisor.kvm.resource.wrapper.LibvirtStorageSubSystemCommandWrapper.execute(LibvirtStorageSubSystemCommandWrapper.java:30)
at
com.cloud.hypervisor.kvm.resource.wrapper.LibvirtRequestWrapper.execute(LibvirtRequestWrapper.java:78)
at
com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.executeRequest(LibvirtComputingResource.java:2282)
at com.cloud.agent.Agent.processRequest(Agent.java:813)
at com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:1295)
at com.cloud.utils.nio.Task.call(Task.java:83)
at com.cloud.utils.nio.Task.call(Task.java:29)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
```
### versions
Specific to main (4.23)
### The steps to reproduce the bug
1. Create a VM
2. Create a data volume
3. Attach volume to VM
4. Attempt detach volume from the running VM - fails with the above exception
### What to do about it?
Should be able to successfully detach the volume as it did in the older
CloudStack versions
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
