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From: zhefeng xu <zhefeng_xu@hotmail.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
CC: "Larry.Finger@lwfinger.net" <Larry.Finger@lwfinger.net>
Subject: Issues with rtw_8822cu
Thread-Topic: Issues with rtw_8822cu
Thread-Index: AQHasESb/JUTLXi7wkGXIoti8etmAg==
Date: Mon, 27 May 2024 14:49:17 +0000
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Hi,=0A=
=0A=
Recently I started working on a test of STA+AP setup on rtw_8822cu card on =
a linux system.=0A=
=0A=
The environment I know so far:=0A=
=0A=
linux version: 5.15.71=0A=
=0A=
driver: https://github.com/lwfinger/rtw88, update to commit 31187d3=0A=
=0A=
=0A=
The rtw_8822cu (with cpu model imx8mq) connects to my home router first (co=
uld be 2.4MHZ or 5G).=0A=
=0A=
After that, I start a script to set up an AP hotspot on the same rtw_8822cu=
. script: https://github.com/garywill/linux-router=0A=
=0A=
Then STA+AP can be set up successfully. Keep it running for a few hours bef=
ore I notice logs printed out:=0A=
=0A=
[May27 13:38] rtw_8822cu 3-1:1.2: failed to poll iqk status bit=0A=
=0A=
[  +0.263848] rtw_8822cu 3-1:1.2: error beacon valid=0A=
=0A=
[  +0.005345] rtw_8822cu 3-1:1.2: failed to download drv rsvd page=0A=
=0A=
[  +0.006703] IPv6: ADDRCONF(NETDEV_CHANGE): x0wlan0: link becomes ready=0A=
=0A=
[  +3.941709] rtw_8822cu 3-1:1.2: error beacon valid=0A=
=0A=
[  +0.005257] rtw_8822cu 3-1:1.2: Download probe request to firmware failed=
=0A=
=0A=
[  +0.007050] rtw_8822cu 3-1:1.2: Update probe request failed=0A=
=0A=
[  +0.159816] rtw_8822cu 3-1:1.2: error beacon valid=0A=
=0A=
[  +0.005230] rtw_8822cu 3-1:1.2: failed to download drv rsvd page=0A=
=0A=
[  +0.006030] rtw_8822cu 3-1:1.2: HW scan download beacon failed=0A=
=0A=
[  +0.140620] rtw_8822cu 3-1:1.2: error beacon valid=0A=
=0A=
[  +0.006253] rtw_8822cu 3-1:1.2: failed to download drv rsvd page=0A=
=0A=
[  +0.006221] rtw_8822cu 3-1:1.2: HW scan download beacon failed=0A=
=0A=
[  +0.028311] rtw_8822cu 3-1:1.2: HW scan failed with status: -16=0A=
=0A=
[May27 13:39] rtw_8822cu 3-1:1.2: error beacon valid=0A=
=0A=
[  +0.005346] rtw_8822cu 3-1:1.2: Download probe request to firmware failed=
=0A=
=0A=
[  +0.006826] rtw_8822cu 3-1:1.2: Update probe request failed=0A=
=0A=
[  +0.025609] rtw_8822cu 3-1:1.2: HW scan failed with status: -16=0A=
=0A=
=0A=
After it, I'm not able to find the AP ssid from scan, but the old connectio=
n to the AP still would be alive. (the linux-router script still running)=
=0A=
=0A=
Restarting the linux-router script wouldn't help, no AP ssid seen from scan=
 any more. Interestingly STA still works, ping still can reach remote hosts=
.=0A=
=0A=
I suspect 1 of the cellphones' disconnect from AP could trigger the issue (=
cellphone is in low power), and so far haven't found any way to recover fro=
m it unless reloading the driver.=0A=
=0A=
Please help give me some insights on the issue.=0A=
=0A=
Thanks,=0A=
=0A=
Zhefeng=