Release Notes

/proc/mdstat and mdadm -D commands display
incorrect statuses when two NVMe devices are
surprise removed from a RAID 5 MD array
Description: When two of three NVMe devices are surprise removed from a RAID 5 MD array, the command cat/
proc/mdstat displays the array status incorrectly as active. Similarly, when the status of the MD RAID
is queried using the mdadm -D /dev/mdN command, the number of active and working devices that
are displayed is two. Only the status of the array reported is incorrect. However, when I/O operations are
performed, I/O errors are observed as expected.
Applies to: Red Hat Enterprise Linux 8.2 and later.
Cause: When the number of devices that are surprise removed exceeds the number of devices that are required
for the array to function, the MD status is not updated.
Systems
affected:
All Dell EMC PowerEdge systems supporting NVMe Surprise Removal.
Tracking number: 182820
Dell Controlled Turbo feature is not functional
Description:
Dell Controlled Turbo is not functional when the system profile setting in BIOS is set to performance or
custom.
Applies to: Red Hat Enterprise Linux 8.0 and later
Cause: The intel_pstate driver may interfere with the processor settings which results in Dell Controlled Turbo
feature being not functional.
Solution: Prevent the intel_pstate driver from loading. For more information on how to prevent the module from
loading, see Red Hat Enterprise Linux Knowledge Base article 41278.
Tracking number: 167802
Caps Lock key-press is not registered on the Dell
PowerEdge iDRAC virtual console
Description:
The Caps Lock key-press is not registered when the Dell PowerEdge iDRAC virtual console is used. The
console displays lowercase letters when the Caps Lock key is enabled.
Applies to: Red Hat Enterprise Linux 8.0, Red Hat Enterprise Linux 8.1 , Red Hat Enterprise Linux 8.2
Workaround: Do the following:
1. Create the file /etc/udev/rules.d/99-kbd.rules and add the rule:
ACTION=="add", SUBSYSTEM=="leds", ENV{DEVPATH}=="*/input*::capslock",
ATTR{trigger}="kbd-ctrlllock"
2. Run the command: udevadm control --reload-rules
3. Disconnect and reconnect the Dell PowerEdge iDRAC virtual console.
Systems
affected:
All Dell EMC PowerEdge servers
Tracking number: 176749
Known issues 23