What to do about warnings: `WRT: Overriding region id X`
From: Paul Menzel <hidden>
Date: 2023-02-27 14:34:36
Dear Linux folks, On a Dell Precision 3540, BIOS 1.23.0 12/19/2022, with Debian sid/unstable, Linux 6.1.12 logs the warnings below.
$ lspci -nn -s 00:14.3 -kv
00:14.3 Network controller [0280]: Intel Corporation Cannon Point-LP
CNVi [Wireless-AC] [8086:9df0] (rev 30)
DeviceName: Onboard - Ethernet
Subsystem: Intel Corporation Cannon Point-LP CNVi [Wireless-AC] [8086:4030]
Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 6
Memory at ec43c000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
$ dmesg
[…]
[ 20.753295] iwlwifi 0000:00:14.3: firmware: direct-loading firmware
iwlwifi-9000-pu-b0-jf-b0-46.ucode
[ 20.753313] iwlwifi 0000:00:14.3: WRT: Overriding region id 0
[ 20.753314] iwlwifi 0000:00:14.3: WRT: Overriding region id 1
[ 20.753315] iwlwifi 0000:00:14.3: WRT: Overriding region id 2
[ 20.753316] iwlwifi 0000:00:14.3: WRT: Overriding region id 3
[ 20.753317] iwlwifi 0000:00:14.3: WRT: Overriding region id 4
[ 20.753318] iwlwifi 0000:00:14.3: WRT: Overriding region id 6
[ 20.753319] iwlwifi 0000:00:14.3: WRT: Overriding region id 8
[ 20.753320] iwlwifi 0000:00:14.3: WRT: Overriding region id 9
[ 20.753320] iwlwifi 0000:00:14.3: WRT: Overriding region id 10
[ 20.753321] iwlwifi 0000:00:14.3: WRT: Overriding region id 11
[ 20.753322] iwlwifi 0000:00:14.3: WRT: Overriding region id 15
[ 20.753323] iwlwifi 0000:00:14.3: WRT: Overriding region id 16
[ 20.753324] iwlwifi 0000:00:14.3: WRT: Overriding region id 18
[ 20.753325] iwlwifi 0000:00:14.3: WRT: Overriding region id 19
[ 20.753326] iwlwifi 0000:00:14.3: WRT: Overriding region id 20
[ 20.753326] iwlwifi 0000:00:14.3: WRT: Overriding region id 21
[ 20.753327] iwlwifi 0000:00:14.3: WRT: Overriding region id 28
[ 20.753642] iwlwifi 0000:00:14.3: firmware: failed to load
iwl-debug-yoyo.bin (-2)
[ 20.753643] firmware_class: See https://wiki.debian.org/Firmware for
information about missing firmware
[ 20.753651] iwlwifi 0000:00:14.3: firmware: failed to load
iwl-debug-yoyo.bin (-2)
[ 20.753653] iwlwifi 0000:00:14.3: loaded firmware version
46.6b541b68.0 9000-pu-b0-jf-b0-46.ucode op_mode iwlmvm
[…]
What can a user do about these warnings? Kind regards, Paul