2021년 8월 16일 (월) 오후 2:22, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>님이 작성: > > On Mon, Aug 16, 2021 at 08:52:06AM +0800, Peter Chen wrote: > > On 21-08-10 15:02:28, Jeaho Hwang wrote: > > > 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
