Re: PREEMPT_RT causes scheduling errors with f_rndis USB gadget

From: Yunhao Tian
Date: Sun Mar 06 2022 - 05:57:26 EST


Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> 于2022年3月6日周日 18:36写道:
>
> On Sun, Mar 06, 2022 at 06:17:54PM +0800, Yunhao Tian wrote:
> > Hi everyone,
> >
> > I'm using Linux 5.15.24-rt31 kernel with PREEMPT_RT enabled, on my
> > RK3308 board. I set up f_rndis gadget with the following script, and
> > plugged my board to a x86 Linux computer running 5.15.25 kernel:
>
> Does the same thing happen with the non-rt kernel?
>
> thanks,
>
> greg k-h

Hi Greg,

Thanks for your reply!

This doesn't happen to non-rt kernel. It will only happen when
PREEMPT_RT is turned on, with rt kernel.

Regards,
Yunhao