rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
 } 2639 jiffies s: 4749 root: 0x0/.
usb 3-1: USB disconnect, device number 12
usb 3-1: new high-speed USB device number 13 using dummy_hcd
usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 3-1: New USB device found, idVendor=0926, idProduct=3333, bcdDevice= 0.40
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-1: config 0 descriptor??
keytouch 0003:0926:3333.003A: fixing up Keytouch IEC report descriptor
input: HID 0926:3333 as /devices/platform/dummy_hcd.2/usb3/3-1/3-1:0.0/0003:0926:3333.003A/input/input62
keytouch 0003:0926:3333.003A: input,hidraw0: USB HID v0.00 Keyboard [HID 0926:3333] on usb-dummy_hcd.2-1/input0