USB issue on 8.2

[Vijay Singh]

Hi hackers. I am seeing an issue where the USB controller is
generating a large number of interrupts.

last pid:  6639;  load averages:  1.39,  1.48,  2.46  up 0+01:07:14    12:35:05
2590 processes:9 running, 462 sleeping, 3 zombie, 2116 waiting
CPU:  0.2% user,  0.0% nice, 11.5% system, 10.6% interrupt, 77.7% idle
Mem: 277M Active, 425M Inact, 241M Wired, 2704K Cache, 7488K Buf, 1017M Free
Swap: 1024M Total, 1024M Free

  PID USERNAME PRI NICE   SIZE    RES STATE   C   TIME   WCPU COMMAND
   10 root     171 ki31     0K    64K RUN     3  34:37 89.40% {idle: cpu3}
   10 root     171 ki31     0K    64K CPU2    2  33:56 85.94% {idle: cpu2}
   10 root     171 ki31     0K    64K CPU0    0  37:20 76.27% {idle: cpu0}
   10 root     171 ki31     0K    64K RUN     1  25:09 55.27% {idle: cpu1}
   11 root     -64    -     0K   480K WAIT    1  14:40 33.40% {irq16: ehci1}

interrupt                          total               rate
irq16: ehci1                   488177801     114166

Is this known? Any patches I can test?

-vijay