Release Notes

Table Of Contents
Dmesg displays TPM and nvdimm related-messages in
Red Hat Enterprise Linux 8.1
Description: When Red Hat Enterprise Linux Version 8.1 is booted with the TPM 2.0 chip enabled, dmesg displays the
following messages in var/log/message:
No TPM handle discovered.
failed to open file /etc/ndctl/keys/nvdimm-master.blob: No such file or
directory
There is no impact to the functionality of the TPM chip if it is enabled in the system BIOS. This is a
cosmetic error and can be ignored.
Applies to: Red Hat Enterprise Linux 8.1 and later
Systems
affected:
Dell EMC PowerEdge yx4x and yx5x servers
Tracking number: 164988
Link Up message is observed when the NVMe device
slot is powered off and the device is unplugged
Description:
The message Link Up is observed in the dmesg log when the NVMe device slot is powered off and the
device is unplugged by running the following command:
echo 0 > /sys/bus/pci/slots/<slot number>/power
The expected message is Link Down because the device is unplugged.
Applies to: Red Hat Enterprise Linux 8.0 and later
Cause: This is due to an issue with the pciehp driver.
Workaround: This issue is a cosmetic issue and can be ignored. The NVMe device is recognized when plugged into the
slot.
Systems
affected:
Dell EMC PowerEdge R740xd and Dell EMC PowerEdge R7425
Tracking number: 160773
Mellanox InfiniBand adapters are listed in Bluetooth
Description:
Mellanox InfiniBand adapters are listed in Gnome, under the Network > Settings > Bluetooth section.
Applies to: Red Hat Enterprise Linux 8.0 and later
Cause: Not available
Workaround: Not available. This issue is a cosmetic issue. Use other tools like nmcli, and nm-connection-editor
to view and configure the InfiniBand interfaces.
Systems
affected:
All Dell EMC PowerEdge servers
Tracking number: 133715
28 Known issues