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

Fabio Estevam

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.

I assume you use an out-of-tree driver, right?

When using out-of-tree drivers, it is common to see the driver work on
a specific kernel version and then it breaks on a kernel update.

I suggest you consider using a well-supported Wifi chip instead.


Fabio Estevam

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