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[Bug 325601] New: Attaching an USB device breaks USB and throws a calltrace
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Mon, 17 Sep 2007 01:45:00 -0600 (MDT)
  • Message-id: <bug-325601-21960@xxxxxxxxxxxxxxxxxxxxxxxxx/>
https://bugzilla.novell.com/show_bug.cgi?id=325601#c19

           Summary: Attaching an USB device breaks USB and throws a
                    calltrace
           Product: openSUSE 10.3
           Version: Beta 3
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Kernel
        AssignedTo: trenn@xxxxxxxxxx
        ReportedBy: anschneider@xxxxxxxxxx
         QAContact: qa@xxxxxxx
          Found By: ---


If you attach a USB device, somtimes USB stops working with an unhandled IRQ
and throws a stack trace.

If you unload the ehci_hcd module then USB works again. Let me know if you need
more information.

Full hwinfo output:
http://www.cynapses.org/tmp/t61-hwinfo.log

dmesg output:
irq 19: nobody cared (try booting with the "irqpoll" option)

Call Trace:
 <IRQ>  [<ffffffff8025fde7>] __report_bad_irq+0x30/0x7d
 [<ffffffff80260036>] note_interrupt+0x202/0x244
 [<ffffffff802608cf>] handle_fasteoi_irq+0xa9/0xd0
 [<ffffffff8020c136>] do_IRQ+0x6c/0xd6
 [<ffffffff8020a141>] ret_from_intr+0x0/0xa
 <EOI>  [<ffffffff803f2eac>] unix_poll+0x0/0x96
 [<ffffffff880040d2>] :processor:acpi_processor_idle+0x29f/0x485
 [<ffffffff880040c8>] :processor:acpi_processor_idle+0x295/0x485
 [<ffffffff88003e33>] :processor:acpi_processor_idle+0x0/0x485
 [<ffffffff80208ce4>] default_idle+0x0/0x3d
 [<ffffffff80208daf>] cpu_idle+0x8e/0xb1
 [<ffffffff805d077b>] start_kernel+0x2cf/0x2db
 [<ffffffff805d0148>] _sinittext+0x148/0x14c

handlers:
[<ffffffff88103d5e>] (usb_hcd_irq+0x0/0x52 [usbcore])
Disabling IRQ #19
Monitor-Mwait will be used to enter C-3 state


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