Re: linux-fslc 5.4.114: rcu_preempt detected stalls on IMX7D #dunfell #meta-freescale

Fabio Estevam

On Tue, Jan 11, 2022 at 10:06 AM Fabio Estevam via <>

Hi Benson,

On Tue, Jan 11, 2022 at 7:08 AM <benson_young@...> wrote:


We are experiencing kernel crash when we are stress testing WiFi functionality over SDIO interface.
please see attachment for kernel dump (near end of log)
Looking at your log, I see you use an rtl8822 Wifi device, which is
not supported in the mainline kernel.
Ah, the driver is available at drivers/net/wireless/realtek/rtw88/rtw8822c.c

I would suggest you try a more recent kernel, such as 5.15.y then.

If you still observe issues, then please report them to the maintainer
and lists given by:
./scripts/ -f drivers/net/wireless/realtek/rtw88/rtw8822c.c

Hope this helps.

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