Hi Arend,
[add Johannes]
Am 22.12.23 um 16:28 schrieb Arend Van Spriel:
On December 22, 2023 4:18:19 PM Arend Van Spriel
<arend.vanspriel@xxxxxxxxxxxx> wrote:
On December 21, 2023 7:40:46 PM Stefan Wahren <wahrenst@xxxxxxx> wrote:
Do you know if this happens before or after the reconnect has completed?
You could enable CONN debug level in brcmfmac to determine that.
before the reconnect
[ 334.956787] cfg80211: Calling CRDA for country: DE
I guess this message is a bit stale and there is no crda user-mode
helper.
[ 334.990709] cfg80211: Disabling freq 2484.000 MHz
So 2GHz channel 14 gets disabled here probably due to country change
to DE.
Not learned a whole lot more from this test round except that reg.c is
active during the reconnect so I suggest to zoom in there. Especially
around the "restoring" message.
I wonder whether we end up in restore_custom_reg_settings() which does:
chan->flags = chan->orig_flags;
for each channel. That would re-enable those channels.
Bingo
This caused the problem. Since brcmf_construct_chaninfo() is only called
once and only changes the flags but never orig_flags, the information
about disabled channels get lost (logs are focused on hw_value 34):
[ 10.294909] cfg80211: Loading compiled-in X.509 certificates for
regulatory database
[ 10.717262] brcmfmac: brcmf_fw_alloc_request: using
brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 10.718408] cfg80211: loaded regulatory.db is malformed or signature
is missing/invalid
[ 10.718427] cfg80211: Restoring regulatory settings
[ 10.718435] cfg80211: Kicking the queue
[ 10.718452] cfg80211: Calling CRDA to update world regulatory domain
[ 10.948418] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob
available (err=-2)
[ 10.948764] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0:
Nov 1 2021 00:37:25 version 7.45.241 (1a2f2fa CY) FWID 01-703fd60
[ 10.982088] cfg80211: handle_channel_custom: hw_value 34, orig_flags:
00000000, flags 00000000
[ 10.982346] cfg80211: Ignoring regulatory request set by core since
the driver uses its own custom regulatory domain
The channel 34 has been disabled by brcmf_construct_chaninfo():
[ 11.025681] brcmfmac: brcmf_construct_chaninfo: hw_value 34,
orig_flags: 00080000, flags 00000001
[ 13.045508] cfg80211: Pending regulatory request, waiting for it to
be processed...
[ 13.237669] cfg80211: Ignoring regulatory request set by core since
the driver uses its own custom regulatory domain
[ 13.237692] cfg80211: World regulatory domain updated:
[ 13.237696] cfg80211: DFS Master region: unset
[ 13.237701] cfg80211: (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[ 13.237709] cfg80211: (755000 KHz - 928000 KHz @ 2000 KHz), (N/A,
2000 mBm), (N/A)
[ 13.237717] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[ 13.237726] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz, 92000
KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 13.237734] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz),
(N/A, 2000 mBm), (N/A)
[ 13.237742] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz,
160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 13.237750] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz,
160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 13.237758] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz),
(N/A, 2000 mBm), (0 s)
[ 13.237765] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz),
(N/A, 2000 mBm), (N/A)
[ 13.237772] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz),
(N/A, 0 mBm), (N/A)
[ 13.237814] cfg80211: Calling CRDA for country: DE
[ 13.262648] cfg80211: Disabling freq 2484.000 MHz
[ 13.262687] cfg80211: handle_channel: hw_value 34, orig_flags:
00080000, flags 00000001
[ 13.262696] cfg80211: handle_channel_single_rule: hw_value 34,
orig_flags: 00080000, flags 00000001
[ 13.359105] brcmfmac: brcmf_construct_chaninfo: hw_value 34,
orig_flags: 00080000, flags 00000001
[ 13.360210] cfg80211: Regulatory domain changed to country: DE
[ 13.360231] cfg80211: DFS Master region: ETSI
[ 13.360235] cfg80211: (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[ 13.360246] cfg80211: (2400000 KHz - 2483500 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[ 13.360256] cfg80211: (5150000 KHz - 5250000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[ 13.360265] cfg80211: (5250000 KHz - 5350000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 13.360281] cfg80211: (5470000 KHz - 5725000 KHz @ 160000 KHz),
(N/A, 2698 mBm), (0 s)
[ 13.360289] cfg80211: (5725000 KHz - 5875000 KHz @ 80000 KHz),
(N/A, 1397 mBm), (N/A)
[ 13.360296] cfg80211: (5945000 KHz - 6425000 KHz @ 160000 KHz,
480000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[ 13.360303] cfg80211: (57000000 KHz - 66000000 KHz @ 2160000 KHz),
(N/A, 4000 mBm), (N/A)
[ 17.172301] cfg80211: Found new beacon on frequency: 5180.000 MHz (Ch
36) on phy0
[ 17.172326] cfg80211: Found new beacon on frequency: 5220.000 MHz (Ch
44) on phy0
[ 20.800666] cfg80211: Calling CRDA for country: DE
[ 20.834453] cfg80211: Disabling freq 2484.000 MHz
[ 20.834487] cfg80211: handle_channel: hw_value 34, orig_flags:
00080000, flags 00000001
[ 20.834503] cfg80211: handle_channel_single_rule: hw_value 34,
orig_flags: 00080000, flags 00000001
[ 20.835045] cfg80211: Regulatory domain changed to country: DE
[ 20.835057] cfg80211: DFS Master region: ETSI
[ 20.835063] cfg80211: (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[ 20.835075] cfg80211: (2400000 KHz - 2483500 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[ 20.835095] cfg80211: (5150000 KHz - 5250000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[ 20.835109] cfg80211: (5250000 KHz - 5350000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 20.835122] cfg80211: (5470000 KHz - 5725000 KHz @ 160000 KHz),
(N/A, 2698 mBm), (0 s)
[ 20.835135] cfg80211: (5725000 KHz - 5875000 KHz @ 80000 KHz),
(N/A, 1397 mBm), (N/A)
[ 20.835148] cfg80211: (5945000 KHz - 6425000 KHz @ 160000 KHz,
480000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[ 20.835160] cfg80211: (57000000 KHz - 66000000 KHz @ 2160000 KHz),
(N/A, 4000 mBm), (N/A)
[ 84.952323] cfg80211: Verifying active interfaces after reg change
[ 344.070588] cfg80211: All devices are disconnected, going to restore
regulatory settings
[ 344.070619] cfg80211: Restoring regulatory settings while preserving
user preference for: DE
Dump after restore_custom_reg_settings() is finished (channel 34 is
re-enabled):
[ 344.070639] cfg80211: restore_custom_reg_settings: hw_value 34,
orig_flags: 00080000, flags 00080000
[ 344.070660] cfg80211: Ignoring regulatory request set by core since
the driver uses its own custom regulatory domain
[ 344.070675] cfg80211: World regulatory domain updated:
[ 344.070684] cfg80211: DFS Master region: unset
[ 344.070692] cfg80211: (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[ 344.070706] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (600
mBi, 2000 mBm), (N/A)
[ 344.070724] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz, 92000
KHz AUTO), (600 mBi, 2000 mBm), (N/A)
[ 344.070741] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (600
mBi, 2000 mBm), (N/A)
[ 344.070758] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz,
160000 KHz AUTO), (600 mBi, 2000 mBm), (N/A)
[ 344.070775] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz,
160000 KHz AUTO), (600 mBi, 2000 mBm), (0 s)
[ 344.070792] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz),
(600 mBi, 2000 mBm), (0 s)
[ 344.070808] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (600
mBi, 2000 mBm), (N/A)
[ 344.070824] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz),
(N/A, 0 mBm), (N/A)
[ 344.070881] cfg80211: Disabling freq 2484.000 MHz
[ 344.070893] cfg80211: handle_channel: hw_value 34, orig_flags:
00080000, flags 00080000
[ 344.070916] cfg80211: handle_channel_single_rule: hw_value 34,
orig_flags: 00080000, flags 00080000
[ 344.071487] cfg80211: Regulatory domain changed to country: DE
[ 344.071499] cfg80211: DFS Master region: ETSI
[ 344.071506] cfg80211: (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[ 344.071519] cfg80211: (2400000 KHz - 2483500 KHz @ 40000 KHz),
(N/A, 2000 mBm), (N/A)
[ 344.071536] cfg80211: (5150000 KHz - 5250000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[ 344.071552] cfg80211: (5250000 KHz - 5350000 KHz @ 80000 KHz,
200000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 344.071567] cfg80211: (5470000 KHz - 5725000 KHz @ 160000 KHz),
(N/A, 2698 mBm), (0 s)
[ 344.071582] cfg80211: (5725000 KHz - 5875000 KHz @ 80000 KHz),
(N/A, 1397 mBm), (N/A)
[ 344.071597] cfg80211: (5945000 KHz - 6425000 KHz @ 160000 KHz,
480000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[ 344.071611] cfg80211: (57000000 KHz - 66000000 KHz @ 2160000 KHz),
(N/A, 4000 mBm), (N/A)
[ 344.071634] cfg80211: Kicking the queue
[ 344.745318] cfg80211: Found new beacon on frequency: 5180.000 MHz (Ch
36) on phy0
[ 344.745369] cfg80211: Found new beacon on frequency: 5220.000 MHz (Ch
44) on phy0
[ 346.174985] brcmfmac: set chanspec 0xd022 fail, reason -52
[ 346.175018] brcmfmac: hw_value 34, orig_flags: 00080000, flags 00080220
Have you always seen this or at certain kernel update or
wpa_supplicant maybe?
As written in the initial message i've tested Linux 6.3, 6.6 and 6.7-rc6
with wpa_supplicant 2.9 so far and saw this issue in these cases.
How far should i go?
I modified brcmf_construct_chaninfo() to store the
IEEE80211_CHAN_DISABLED flag within orig_flags in case the flags had it.
This avoid the issue. Not sure this is the proper solution.
Best regards
