2021년 8월 16일 (월) 오후 2:22, Greg Kroah-Hartman [off-list ref]님이 작성:

On Mon, Aug 16, 2021 at 08:52:06AM +0800, Peter Chen wrote:

quoted

On 21-08-10 15:02:28, Jeaho Hwang wrote:

quoted

hw_ep_prime sometimes fails if irq occurs while it rus on RT kernel.
to prevent local_irq_save should keep the function from irqs.

I am not sure where is the best to submit this patch, between RT and USB
community so sending to both. thanks.

Greg, do you have any suggestions about it, the RT kernel schedules the interrupt
handler (top-half) out which causes the USB hardware atomic sequences are broken,
these hardware operations needs to be executed within limited time.

Try working with the RT developers on this.

Then do you think those kinds of patches should be applied to linux-rt
instead of mainline?

-- 
황재호, Jay Hwang, linux team manager of RTst
010-7242-1593