Help! OHCI Unrecoverable Error

["Richard Cong" <gz_yhcong@xxxxxxx>]

Hi Guys:

        I am using linux-2.6.21 based on AT91SAM9260.
        Usually a USB  Ethernet is plugged into the USB port when I  am
using it.  After the board was running for a moment(random lonnger or
shorter) I got the follwoing messages:

at91_ohci at91_ohci: OHCI Unrecoverable Error, disabled
at91_ohci at91_ohci: HC died; cleaning up
irq 20: nobody cared (try booting with the "irqpoll" option)
handlers:
[<c0340fc0>] (usb_hcd_irq+0x0/0x88)
Disabling IRQ #20
usb 1-1: USB disconnect, address 2
drivers/usb/net/rtl8150.c: Rx status -108
at91_ohci at91_ohci: leak ed ffc02040 (#81) state 0 (has tds)
at91_ohci at91_ohci: leak ed ffc02080 (#83) state 0 (has tds)

My usb ethernet is not available at the same time. Most critical is it is
definitly not recoverable. I have to reboot the system when the problem
occured.


Could you give some advice?




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