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Date: Wed, 27 Oct 2004 14:56:56 +0200 (MEST)
From: "Daniel Blueman" <daniel.blueman@gmx.net>
To: "Yu, Luming" <luming.yu@intel.com>
Cc: linux-usb-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
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Subject: RE: [2.6.9] unhandled OHCI IRQs...
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I forgot to stop the OHCI controllers being disabled with a 'setpci
command=0' command on bootup. Now everything works perfectly!

> Please verify if APIC mode can help this case?
> 
> Thanks
> Luming 
> 
> >-----Original Message-----
> >From: linux-kernel-owner@vger.kernel.org 
> >[mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of Daniel Blueman
> >Sent: 2004??10??25?? 4:20
> >To: linux-usb-devel@lists.sourceforge.net; linux-kernel@vger.kernel.org
> >Subject: [2.6.9] unhandled OHCI IRQs...
> >
> >When plugging in an Epson C62 USB 1.1 printer to my nForce 2 
> >OHCI + EHCI USB
> >controllers, the IRQ doesn't seem to get handled [1]. Tried both with
> >acpi=noirq and without, printer support and full USB support 
> >enabled. Kernel
> >is 2.6.9.
> >
> >Any ideas?
> >
> >--- [1]
> >
> >irq 7: nobody cared!
> > [<c01063d4>] __report_bad_irq+0x24/0x80
> > [<c01064b1>] note_interrupt+0x61/0x90
> > [<c010637b>] handle_IRQ_event+0x2b/0x60
> > [<c010676a>] do_IRQ+0x11a/0x130
> > [<c010479c>] common_interrupt+0x18/0x20
> > [<c0119f30>] __do_softirq+0x30/0x90
> > [<c0119fb6>] do_softirq+0x26/0x30
> > [<c010674b>] do_IRQ+0xfb/0x130
> > [<c010479c>] common_interrupt+0x18/0x20
> > [<c0101df0>] default_idle+0x0/0x30
> > [<c0101e13>] default_idle+0x23/0x30
> > [<c0101e8a>] cpu_idle+0x3a/0x60
> > [<c035c8e1>] start_kernel+0x141/0x160
> > [<c035c530>] unknown_bootoption+0x0/0x160
> >handlers:
> >[<c022dcd0>] (usb_hcd_irq+0x0/0x60)
> >Disabling IRQ #7
> >spurious 8259A interrupt: IRQ7.
> >
> >--- [2]
> >
> ># grep hcd /proc/interrupts 
> >  5:          0          XT-PIC  ohci_hcd
> >  7:     164004          XT-PIC  ohci_hcd
> > 12:          2          XT-PIC  ehci_hcd

-- 
Daniel J Blueman

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