Messages in this thread | | | Date | Thu, 16 Jun 2022 16:24:08 +0800 | Subject | Re: [PATCH v4 -next] usb: xhci: disable irq during initialization | From | 谢泓宇 <> |
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Hi greg,
On 2022/6/16 16:12, Greg KH wrote: > On Thu, Jun 16, 2022 at 04:09:33PM +0800, Hongyu Xie wrote: >> irq is disabled in xhci_quiesce(called by xhci_halt, with bit:2 cleared >> in USBCMD register), but xhci_run(called by usb_add_hcd) re-enable it. >> It's possible that you will receive thousands of interrupt requests >> after initialization for 2.0 roothub. And you will get a lot of >> warning like, "xHCI dying, ignoring interrupt. Shouldn't IRQs be >> disabled?". This amount of interrupt requests will cause the entire >> system to freeze. >> This problem was first found on a device with ASM2142 host controller >> on it. >> >> Signed-off-by: Hongyu Xie <xiehongyu1@kylinos.cn> >> Reported-by: kernel test robot <lkp@intel.com> > > the test robot did not find this original problem, it only found > problems with your original submission, which is different. > "Reported-by" shouldn't had been put here. Quote from the last email test robot sent to me, "If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com>" Where should I put this? Or just ignore it?
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