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Re: brcmfmac: Unexpected brcmf_set_channel: set chanspec 0xd022 fail, reason -52 - Part 2

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Hi Arend,

Am 21.12.23 um 18:47 schrieb Arend Van Spriel:


On November 18, 2023 12:43:24 PM Stefan Wahren <wahrenst@xxxxxxx> wrote:

Hi Arend,

Am 15.11.23 um 21:09 schrieb Arend van Spriel:
On 11/15/2023 7:35 PM, Stefan Wahren wrote:
Am 15.11.23 um 10:34 schrieb Arend van Spriel:
On 11/13/2023 10:02 PM, Stefan Wahren wrote:
Hi Arend,

Am 13.11.23 um 10:11 schrieb Arend van Spriel:
On 11/11/2023 9:30 PM, Stefan Wahren wrote:
Am 11.11.23 um 19:29 schrieb Stefan Wahren:

Am 11.11.23 um 18:25 schrieb Arend Van Spriel:
On November 11, 2023 5:48:46 PM Stefan Wahren <wahrenst@xxxxxxx>
wrote:


Again look like these are disabled channels. At least chanspec
0xd022
is 5G channel 34. You say you get this only once so not every 60
seconds?
I get this everytime i trigger a reconnect to the wifi
network, so
not
periodically (checked that). Strangely the initial automatic
connect
doesn't trigger this errors.
I additionally placed a WARN_ON_ONCE after the error log and
enabled the
firmware error log of brcmf_fil_cmd_data(). Maybe this helps.

It does a bit. At least it shows this is happening with the
dump_survey (again). I don't really understand why though. It
implies
the channel is not disabled, but unclear why. The channel flags are
changed in brcmf_construct_chaninfo() so we probably should focus
debug on that function.

i placed a pr_err at the start of brcmf_construct_chaninfo and
another
pr_err into the for loop before the "if (channel->orig_flags &
IEEE80211_CHAN_DISABLED) continue".

pr_err("%s: Ch num %d, chanspec 0x%x, orig_flags: %x.\n", __func__,
ch.control_ch_num, ch.chspec, channel->orig_flags);

It seems that brcmf_construct_chaninfo is called two times, but the
results are different. I could find 0xd090 in the first run, but
not in
second. The other chanspecs doesn't seem to occur in both runs. No
idea
what's going on here.

Can you print all wiphy band channels before exiting
brcmf_construct_chaninfo() and print both channel->orig_flags and
channel->flags?

Sure. It seems that in the first call of brcmf_construct_chaninfo the
channel 144 is not disabled, but in the second.

I am a bit confused. So the chanspec as mentioned in this email
subject is no longer observed, but you still see failure in
brcmf_set_channel() for other chanspecs?

before we dive deeper into this let me summarize my observations from
the beginning. From my understanding the errors are triggered for the 5
GHz channels 34, 38, 42, 46, 144 (chanspec: 0xd022, 0xd026, 0xd02a,
0xd090). So i would focus my observations on those.

As you said that the channel flags are set in brcmf_construct_chaninfo()
i dump them, here is the output of the first call:

[    8.785850] brcmfmac: 5 GHz: 0: hw_value 34: orig_flags: 00080000,
flags 00000001
[    8.785861] brcmfmac: 5 GHz: 2: hw_value 38: orig_flags: 00080000,
flags 00000001
[    8.785872] brcmfmac: 5 GHz: 4: hw_value 42: orig_flags: 00080000,
flags 00000001
[    8.785882] brcmfmac: 5 GHz: 6: hw_value 46: orig_flags: 00080000,
flags 00000001
[    8.785974] brcmfmac: 5 GHz: 23: hw_value 144: orig_flags: 00080000,
flags 0000011a

All of them except 144 are disabled via flags. Btw wpa_supplicant is
configured to country DE within the configuration.

The second and last time brcmf_construct_chaninfo() is called is a few
seconds later during boot, we get the following:

[   12.490877] brcmfmac: 5 GHz: 0: hw_value 34: orig_flags: 00080000,
flags 00000001
[   12.490891] brcmfmac: 5 GHz: 2: hw_value 38: orig_flags: 00080000,
flags 00000001
[   12.490904] brcmfmac: 5 GHz: 4: hw_value 42: orig_flags: 00080000,
flags 00000001
[   12.490918] brcmfmac: 5 GHz: 6: hw_value 46: orig_flags: 00080000,
flags 00000001
[   12.491031] brcmfmac: 5 GHz: 23: hw_value 144: orig_flags: 00080000,
flags 00000001

Now all of them are disabled via flags.

So after that i trigger the reconnect to the same 5 GHz network as
before. brcmf_construct_chaninfo is never called again, but at the time
brcmf_set_channel is called the flags for these channels are completely
different:

[   90.010002] brcmfmac: brcmf_set_channel: set chanspec 0xd022 fail,
reason -52
[   90.010017] brcmfmac: hw_value 34, orig_flags: 00080000, flags
00080220
[   90.120007] ieee80211 phy0: brcmf_fil_cmd_data: Firmware error: (-20)
[   90.120038] brcmfmac: brcmf_set_channel: set chanspec 0xd026 fail,
reason -52
[   90.120053] brcmfmac: hw_value 38, orig_flags: 00080000, flags
00080200
[   90.230029] ieee80211 phy0: brcmf_fil_cmd_data: Firmware error: (-20)
[   90.230058] brcmfmac: brcmf_set_channel: set chanspec 0xd02a fail,
reason -52
[   90.230073] brcmfmac: hw_value 42, orig_flags: 00080000, flags
00080200
[   90.340042] ieee80211 phy0: brcmf_fil_cmd_data: Firmware error: (-20)
[   90.340071] brcmfmac: brcmf_set_channel: set chanspec 0xd02e fail,
reason -52
[   90.340086] brcmfmac: hw_value 46, orig_flags: 00080000, flags
00080210
[   92.100073] ieee80211 phy0: brcmf_fil_cmd_data: Firmware error: (-20)
[   92.100110] brcmfmac: brcmf_set_channel: set chanspec 0xd090 fail,
reason -52
[   92.100126] brcmfmac: hw_value 144, orig_flags: 00080000, flags
00080118

Where does these new flags come from? It's clear that these doesn't come
from brcmf_construct_chaninfo(). So what manipulates the flags
afterwards? Shouldn't brcmf_construct_chaninfo() called on reconnect?

I suspect it is not the driver, but net/wireless/reg.c. Could you
define DEBUG in top of that file and build cfg80211.ko with that. Or
if you have CONFIG_DYNAMIC_DEBUG enable debug prints for reg.c through
sysfs [1]

Sure, this is a more recent Linux 6.7 and the disconnect is at uptime
~316s followed by the reconnect:

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 6.7.0-rc6-00022-g55cb5f43689d-dirty
(stefanw@stefanw-SCHENKER) (arm-linux-gnueabihf-gcc (GCC) 11.3.1
20220604 [releases/gcc-11 revision
591c0f4b92548e3ae2e8173f4f93984b1c7f62bb], GNU ld
(Linaro_Binutils-2022.06) 2.37.20220122) #175 SMP Thu Dec 21 19:15:10
CET 2023
[    0.000000] CPU: ARMv7 Processor [410fd034] revision 4 (ARMv7),
cr=10c5383d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing
instruction cache
[    0.000000] OF: fdt: Machine model: Raspberry Pi 3 Model B Plus Rev 1.3
...
[    9.538797] cfg80211: Loading compiled-in X.509 certificates for
regulatory database
[    9.699412] usb 1-1.3: USB disconnect, device number 4
[    9.716116] Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    9.760066] brcmfmac: brcmf_fw_alloc_request: using
brcm/brcmfmac43455-sdio for chip BCM4345/6
[    9.770023] cfg80211: loaded regulatory.db is malformed or signature
is missing/invalid
[    9.770047] cfg80211: Restoring regulatory settings
[    9.770057] cfg80211: Kicking the queue
[    9.770078] cfg80211: Calling CRDA to update world regulatory domain
[    9.801533] Console: switching to colour dummy device 80x30
[    9.813535] vc4-drm soc:gpu: bound 3f400000.hvs (ops vc4_hvs_ops [vc4])
[    9.816895] vc4-drm soc:gpu: bound 3f902000.hdmi (ops vc4_hdmi_ops [vc4])
[    9.817106] vc4-drm soc:gpu: bound 3f806000.vec (ops vc4_vec_ops [vc4])
[    9.817282] vc4-drm soc:gpu: bound 3f004000.txp (ops vc4_txp_ops [vc4])
[    9.817413] vc4-drm soc:gpu: bound 3f206000.pixelvalve (ops
vc4_crtc_ops [vc4])
[    9.817538] vc4-drm soc:gpu: bound 3f207000.pixelvalve (ops
vc4_crtc_ops [vc4])
[    9.817745] vc4-drm soc:gpu: bound 3f807000.pixelvalve (ops
vc4_crtc_ops [vc4])
[    9.817864] vc4-drm soc:gpu: bound 3fc00000.v3d (ops vc4_v3d_ops [vc4])
[    9.823689] Bluetooth: hci0: BCM: chip id 107
[    9.825669] Bluetooth: hci0: BCM: features 0x2f
[    9.826383] [drm] Initialized vc4 0.0.0 20140616 for soc:gpu on minor 0
[    9.827278] Bluetooth: hci0: BCM4345C0
[    9.827291] Bluetooth: hci0: BCM4345C0 (003.001.025) build 0000
[    9.869190] Bluetooth: hci0: BCM4345C0
'brcm/BCM4345C0.raspberrypi,3-model-b-plus.hcd' Patch
[    9.915063] Console: switching to colour frame buffer device 240x75
[    9.944429] vc4-drm soc:gpu: [drm] fb0: vc4drmfb frame buffer device
[    9.958353] hub 1-1:1.0: USB hub found
[    9.958412] hub 1-1:1.0: 4 ports detected
[    9.992604] onboard-usb-hub 3f980000.usb:usb-port@1: supply vdd not
found, using dummy regulator
[    9.994313] onboard-usb-hub 3f980000.usb:usb-port@1:usb-port@1:
supply vdd not found, using dummy regulator
[    9.995590] hub 1-1:1.0: USB hub found
[    9.995690] hub 1-1:1.0: 4 ports detected
[    9.998640] onboard-usb-hub 3f980000.usb:usb-port@1:usb-port@1:
supply vdd not found, using dummy regulator
[   10.086053] usbcore: registered new interface driver lan78xx
[   10.094129] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob
available (err=-2)
[   10.098005] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0:
Nov  1 2021 00:37:25 version 7.45.241 (1a2f2fa CY) FWID 01-703fd60
[   10.135643] cfg80211: Ignoring regulatory request set by core since
the driver uses its own custom regulatory domain
[   10.307704] usb 1-1.1: new high-speed USB device number 7 using dwc2
[   10.452108] hub 1-1.1:1.0: USB hub found
[   10.452310] hub 1-1.1:1.0: 3 ports detected
[   10.557660] usb 1-1.3: new low-speed USB device number 8 using dwc2
[   10.726697] input: PixArt Microsoft USB Optical Mouse as
/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.0/0003:045E:00CB.0003/input/input2
[   10.727785] hid-generic 0003:045E:00CB.0003: input: USB HID v1.11
Mouse [PixArt Microsoft USB Optical Mouse] on usb-3f980000.usb-1.3/input0
[   10.797638] usb 1-1.1.2: new low-speed USB device number 9 using dwc2
[   10.957069] input: HID 046a:0011 as
/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0/0003:046A:0011.0004/input/input3
[   11.019525] hid-generic 0003:046A:0011.0004: input: USB HID v1.11
Keyboard [HID 046a:0011] on usb-3f980000.usb-1.1.2/input0
[   11.048402] Bluetooth: hci0: BCM: features 0x2f
[   11.050164] Bluetooth: hci0: BCM43455 37.4MHz Raspberry Pi 3+-0190
[   11.050178] Bluetooth: hci0: BCM4345C0 (003.001.025) build 0382
[   11.324175] usb 1-1.1.1: new high-speed USB device number 10 using dwc2
[   11.714298] lan78xx 1-1.1.1:1.0 (unnamed net_device) (uninitialized):
No External EEPROM. Setting MAC Speed
[   11.854291] cfg80211: Pending regulatory request, waiting for it to
be processed...
[   12.099129] cfg80211: Ignoring regulatory request set by core since
the driver uses its own custom regulatory domain
[   12.099161] cfg80211: World regulatory domain updated:
[   12.099168] cfg80211:  DFS Master region: unset
[   12.099174] cfg80211:   (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[   12.099189] cfg80211:   (755000 KHz - 928000 KHz @ 2000 KHz), (N/A,
2000 mBm), (N/A)
[   12.099201] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[   12.099213] cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz, 92000
KHz AUTO), (N/A, 2000 mBm), (N/A)
[   12.099224] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz),
(N/A, 2000 mBm), (N/A)
[   12.099235] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz,
160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[   12.099248] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz,
160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[   12.099259] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz),
(N/A, 2000 mBm), (0 s)
[   12.099269] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz),
(N/A, 2000 mBm), (N/A)
[   12.099280] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz),
(N/A, 0 mBm), (N/A)
[   12.101316] cfg80211: Calling CRDA for country: DE
[   12.125129] cfg80211: Disabling freq 2484.000 MHz
[   12.176440] cfg80211: Regulatory domain changed to country: DE
[   12.176459] cfg80211:  DFS Master region: ETSI
[   12.176464] cfg80211:   (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[   12.176473] cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[   12.176487] cfg80211:   (5150000 KHz - 5250000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[   12.176496] cfg80211:   (5250000 KHz - 5350000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[   12.176504] cfg80211:   (5470000 KHz - 5725000 KHz @ 160000 KHz),
(N/A, 2698 mBm), (0 s)
[   12.176512] cfg80211:   (5725000 KHz - 5875000 KHz @ 80000 KHz),
(N/A, 1397 mBm), (N/A)
[   12.176521] cfg80211:   (5945000 KHz - 6425000 KHz @ 160000 KHz,
480000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[   12.176529] cfg80211:   (57000000 KHz - 66000000 KHz @ 2160000 KHz),
(N/A, 4000 mBm), (N/A)
[   13.893866] Adding 102396k swap on /var/swap.  Priority:-2 extents:1
across:102396k SS
[   14.530323] lan78xx 1-1.1.1:1.0 eth0: Link is Down
[   14.641536] Bluetooth: MGMT ver 1.22
[   14.689962] NET: Registered PF_ALG protocol family
[   14.744513] cryptd: max_cpu_qlen set to 1000
[   16.791666] cfg80211: Found new beacon on frequency: 5180.000 MHz (Ch
36) on phy0
[   16.791716] cfg80211: Found new beacon on frequency: 5220.000 MHz (Ch
44) on phy0
[   20.481971] cfg80211: Calling CRDA for country: DE
[   20.501082] cfg80211: Disabling freq 2484.000 MHz
[   20.501465] cfg80211: Regulatory domain changed to country: DE
[   20.501471] cfg80211:  DFS Master region: ETSI
[   20.501475] cfg80211:   (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[   20.501490] cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[   20.501497] cfg80211:   (5150000 KHz - 5250000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[   20.501504] cfg80211:   (5250000 KHz - 5350000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[   20.501511] cfg80211:   (5470000 KHz - 5725000 KHz @ 160000 KHz),
(N/A, 2698 mBm), (0 s)
[   20.501517] cfg80211:   (5725000 KHz - 5875000 KHz @ 80000 KHz),
(N/A, 1397 mBm), (N/A)
[   20.501524] cfg80211:   (5945000 KHz - 6425000 KHz @ 160000 KHz,
480000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[   20.501531] cfg80211:   (57000000 KHz - 66000000 KHz @ 2160000 KHz),
(N/A, 4000 mBm), (N/A)
[   46.174010] systemd-journald[125]: Failed to set ACL on
/var/log/journal/0b443a02fdd340c68f8aac17d2e5ebf8/user-1000.journal,
ignoring: Operation not supported
[   84.956286] cfg80211: Verifying active interfaces after reg change
[  128.323869] cfg80211: Found new beacon on frequency: 2472.000 MHz (Ch
13) on phy0
[  192.477390] cfg80211: Verifying active interfaces after reg change
[  316.329988] cfg80211: All devices are disconnected, going to restore
regulatory settings
[  316.330038] cfg80211: Restoring regulatory settings while preserving
user preference for: DE
[  316.330063] cfg80211: Ignoring regulatory request set by core since
the driver uses its own custom regulatory domain
[  316.330088] cfg80211: World regulatory domain updated:
[  316.330097] cfg80211:  DFS Master region: unset
[  316.330104] cfg80211:   (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[  316.330120] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (600
mBi, 2000 mBm), (N/A)
[  316.330140] cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz, 92000
KHz AUTO), (600 mBi, 2000 mBm), (N/A)
[  316.330156] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (600
mBi, 2000 mBm), (N/A)
[  316.330172] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz,
160000 KHz AUTO), (600 mBi, 2000 mBm), (N/A)
[  316.330190] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz,
160000 KHz AUTO), (600 mBi, 2000 mBm), (0 s)
[  316.330206] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz),
(600 mBi, 2000 mBm), (0 s)
[  316.330222] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (600
mBi, 2000 mBm), (N/A)
[  316.330238] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz),
(N/A, 0 mBm), (N/A)
[  316.330307] cfg80211: Disabling freq 2484.000 MHz
[  316.340457] cfg80211: Regulatory domain changed to country: DE
[  316.340487] cfg80211:  DFS Master region: ETSI
[  316.340495] cfg80211:   (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[  316.340511] cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[  316.340529] cfg80211:   (5150000 KHz - 5250000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[  316.340547] cfg80211:   (5250000 KHz - 5350000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[  316.340563] cfg80211:   (5470000 KHz - 5725000 KHz @ 160000 KHz),
(N/A, 2698 mBm), (0 s)
[  316.340577] cfg80211:   (5725000 KHz - 5875000 KHz @ 80000 KHz),
(N/A, 1397 mBm), (N/A)
[  316.340592] cfg80211:   (5945000 KHz - 6425000 KHz @ 160000 KHz,
480000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[  316.340607] cfg80211:   (57000000 KHz - 66000000 KHz @ 2160000 KHz),
(N/A, 4000 mBm), (N/A)
[  316.340643] cfg80211: Kicking the queue
[  331.276421] cfg80211: Found new beacon on frequency: 5180.000 MHz (Ch
36) on phy0
[  331.276494] cfg80211: Found new beacon on frequency: 5220.000 MHz (Ch
44) on phy0
[  331.276562] cfg80211: Found new beacon on frequency: 2472.000 MHz (Ch
13) on phy0
[  332.729896] brcmfmac: brcmf_set_channel: set chanspec 0xd022 fail,
reason -52
[  332.840008] brcmfmac: brcmf_set_channel: set chanspec 0xd026 fail,
reason -52
[  332.949910] brcmfmac: brcmf_set_channel: set chanspec 0xd02a fail,
reason -52
[  333.059802] brcmfmac: brcmf_set_channel: set chanspec 0xd02e fail,
reason -52
[  334.819896] brcmfmac: brcmf_set_channel: set chanspec 0xd090 fail,
reason -52
[  334.820318] brcmfmac: brcmf_set_channel: set chanspec 0xd095 fail,
reason -52
[  334.820719] brcmfmac: brcmf_set_channel: set chanspec 0xd099 fail,
reason -52
[  334.821120] brcmfmac: brcmf_set_channel: set chanspec 0xd09d fail,
reason -52
[  334.821521] brcmfmac: brcmf_set_channel: set chanspec 0xd0a1 fail,
reason -52
[  334.821922] brcmfmac: brcmf_set_channel: set chanspec 0xd0a5 fail,
reason -52
[  334.956787] cfg80211: Calling CRDA for country: DE
[  334.990709] cfg80211: Disabling freq 2484.000 MHz
[  334.991199] cfg80211: Regulatory domain changed to country: DE
[  334.991212] cfg80211:  DFS Master region: ETSI
[  334.991218] cfg80211:   (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[  334.991236] cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[  334.991249] cfg80211:   (5150000 KHz - 5250000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[  334.991261] cfg80211:   (5250000 KHz - 5350000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[  334.991273] cfg80211:   (5470000 KHz - 5725000 KHz @ 160000 KHz),
(N/A, 2698 mBm), (0 s)
[  334.991284] cfg80211:   (5725000 KHz - 5875000 KHz @ 80000 KHz),
(N/A, 1397 mBm), (N/A)
[  334.991296] cfg80211:   (5945000 KHz - 6425000 KHz @ 160000 KHz,
480000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[  334.991307] cfg80211:   (57000000 KHz - 66000000 KHz @ 2160000 KHz),
(N/A, 4000 mBm), (N/A)
[  397.278378] cfg80211: Verifying active interfaces after reg change





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