OLVM: Error Event "VDSM <hostname> command Get Host Hardware Info failed: Failed to read hardware information" (Doc ID 2757948.1)

Last updated on MARCH 04, 2021

Applies to:

Symptoms

In the Admin Portal:

Event Manager is filled with messages like "Error Event "VDSM <hostname> command Get Host Hardware Info failed: Failed to read hardware information"
Several server informational fields are missing in the UI - like Vendor, Serial Number, UUID.

In engine.log:

2021-02-24 09:57:14,661+01 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.GetHardwareInfoAsyncVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-45) [] Failed in 'Get Host Hardware Info' method
2021-02-24 09:57:14,664+01 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engineScheduled-Thread-45) [] EVENT_ID: VDS_BROKER_COMMAND_FAILURE(10,802), VDSM <hostname> command Get Host Hardware Info failed: Failed to read hardware information

In supervdsm.log:

MainProcess|jsonrpc/3::ERROR::2021-02-24 05:05:52,787::supervdsm_server::103::SuperVdsm.ServerCallback::(wrapper) Error in getHardwareInfo"

In vdsm.log:

2021-02-24 05:05:52,787+0100 ERROR (jsonrpc/3) [vds] failed to retrieve hardware info (API:1386)
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/vdsm/API.py", line 1383, in getHardwareInfo
hw = supervdsm.getProxy().getHardwareInfo()
File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 56, in __call__
return callMethod()
File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 54, in <lambda>
**kwargs)
File "<string>", line 2, in getHardwareInfo
File "/usr/lib64/python2.7/multiprocessing/managers.py", line 773, in _callmethod
raise convert_to_error(kind, result)
RuntimeError: [src/dmidecodemodule.c:318] Error decoding DMI data

In the KVM host messages log:

Feb 23 14:23:23 [hostname] kernel: Lockdown: biosdevname: /dev/mem,kmem,port is restricted; see man kernel_lockdown.7

Changes

UEFI Secure Boot is enabled.

Cause

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