RE: PROBLEM: kernel warns about voluntary context switch within RCU critical section in rtw88_usb

Ping-Ke Shih
2023-08-22T01:47:54Z

From: Sergey Korolev <korolev.sergey@gmail.com>
Sent: Monday, August 21, 2023 10:28 PM
To: Ping-Ke Shih <pkshih@realtek.com>; Kalle Valo <kvalo@kernel.org>; linux-wireless@vger.kernel.org; linux-kernel@vger.kernel.org
Subject: PROBLEM: kernel warns about voluntary context switch within RCU critical section in rtw88_usb
>
> Please note I use an unmodified driver from the upstream 28c11c29494f1b34e39641eead9c60a8bd26170d
> ("wifi: rtw88: fix not entering PS mode after AP stops") build for 6.2 kernel (Ubuntu 23.04).

I feel Martin has been addressed this problem during development of SDIO and USB
by 8a1e2fd8e2da ("wifi: rtw88: Move register access from rtw_bf_assoc() outside the RCU")
Please take a look if this patch is existing in your source.

Ping-Ke