OHCI Unrecoverable Error, disabled

AskAndSolveIt

在调试USB的时候，遇到了下面的问题:
       ohci_hcd 0000:02:03.1: OHCI Unrecoverable Error, disabled
ohci_hcd 0000:02:03.1: HC died; cleaning up
ohci_hcd 0000:02:03.1: leak ed c0752040 (#81) state 0 (has tds)
ohci_hcd 0000:02:03.1: leak ed c0752080 (#82) state 0 (has tds)
irq 39: nobody cared (try booting with the "irqpoll" option)
Call Trace:
[C0417A70] [C00094BC] show_stack+0x48/0x194(unreliable)

[C0417AB0] [C004A78C] __report_bad_irq+0x34/0xac

[C0417AD0] [C004AA9C] note_interrupt+0x298/0x2ec

[C0417B20] [C0049F2C] __do_IRQ+0x1bc/0x1cc

[C0417B50] [C001963C] tsi108_irq_cascade+0x150/0x154

[C0417B70] [C0005E6C] do_IRQ+0x7c/0xcc

[C0417B90] [C0012410] ret_from_except+0x0/0x14

--- Exception: 501--- Exception: 501 at mpage_end_io_read+0x80/0xec
at mpage_end_io_read+0x80/0xec
    LR = bio_endio+0xbc/0xe0
[C0417C50] [00209032] 0x209032 (unreliable)

[C0417C80] [C0089D60] bio_endio+0xbc/0xe0

[C0417CA0] [C01583B8] __end_that_request_first+0xdc/0x70c

--- Exception: 0--- Exception: 0 at scsi_io_completion+0x4/0x370
at scsi_io_completion+0x4/0x370
    LR = 0xc0416000
[C0417CF0] [C01DA988] scsi_end_request+0x30/0x128(unreliable)

[C0417D20] [C01DABFC] scsi_io_completion+0xec/0x370

[C0417D60] [C01EC574] sd_rw_intr+0x1e0/0x3b4

[C0417DB0] [C01D4CF8] scsi_finish_command+0x68/0xac

[C0417DD0] [C01DB4A8] scsi_softirq_done+0xa4/0xb8

[C0417DF0] [C0158AAC] blk_done_softirq+0xa8/0xc8

[C0417E10] [C0029D54] __do_softirq+0xc0/0x1bc

[C0417E70] [C0005F20] do_softirq+0x64/0x6c

[C0417E90] [C0029EA4] irq_exit+0x54/0x64

[C0417EA0] [C0005E70] do_IRQ+0x80/0xcc

[C0417EC0] [C0012410] ret_from_except+0x0/0x14

--- Exception: 501--- Exception: 501 at cpu_idle+0x70/0xf4
at cpu_idle+0x70/0xf4
    LR = cpu_idle+0xa0/0xf4
[C0417F80] [C0009FC0] cpu_idle+0xf0/0xf4(unreliable)

[C0417FB0] [C0003B14] rest_init+0x2c/0x3c

[C0417FC0] [C03637FC] start_kernel+0x2c4/0x314

[C0417FF0] [000037B4] 0x37b40x37b4

handlers:
[<c01ff838>][<c01ff838>] (mpt_interrupt+0x0/0xa1 (mpt_interrupt+0x0/0xa1

[<c0220314>][<c0220314>] (usb_hcd_irq+0x0/0xa4) (usb_hcd_irq+0x0/0xa4)

Disabling IRQ #39


      不知有没有人遇到过相同或类似的问题，还望不吝赐教，谢谢了

    另外，我看了一下USB OHCI Specification, 上面说了这样的话，即在IntrStatus中，当Host Controller检测到一个与USB无关的系统错误时会将IntrStatus中的UE(Unrecoverable Error)位置1[UE—Unrecoverable Error:This bit is set when the Host Controller detects a system error not releated to USB];我想请教一下大家，这个所谓的system error具体包括哪些呢? 谢谢了；