Hi,
When I debug USB system,I encounter the problem following:

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+0x0/0xa18) (mpt_interrupt+0x0/0xa18)

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

Disabling IRQ #39

I think someone should encounter the same or similar problem;Can you give me some suggestion or solution? Thanks!

If anyone were to have a hope of giving any insight at all, it would probably help them to know what version/release of the kernel this is, what architecture and Linux OS this applies to, what sort of computer you're experiencing this on (desktop/laptop/new/old/very rare...), and why exactly you are "debugging the USB system", i.e. what got you to this situation in the first place?

There may well be more that would help, but the above info is a good place to start.

1 members found this post helpful.

Thanks for your advice! The kernel version I use is 2.6.18 from www.kernel.org;The system I develop is about embeded system!I use PowePC Architecture(Freescale MPC7448);And use ISP1561 for PCI-->USB bridge;When I use usb mouse or usb keyboard,[Sometimes,I can use mouse or keyboard for a moment;But accidentally,the problem occur;]I encounter the problem "OHCI Unrecoverable Error, disabled:"