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Subject: Re: 2.6.7-mm3 USB ehci IRQ problem
From: Jurgen Kramer <gtm.kramer@inter.nl.net>
To: Len Brown <len.brown@intel.com>
Cc: linux-kernel@vger.kernel.org
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On Mon, 2004-07-05 at 21:02, Len Brown wrote:
> On Sun, 2004-06-27 at 08:02, Jurgen Kramer wrote:
> > With 2.6.7-mm3 I am missing my USB 2.0 memory stick. It doesn't show
> > up in the usb device listing. But when I unplug it I get:
> > 
> > irq 23: nobody cared!
> >  [<c0108106>] __report_bad_irq+0x2a/0x8b
> >  [<c01081f0>] note_interrupt+0x6f/0x9f
> >  [<c0108473>] do_IRQ+0x10c/0x10e
> >  [<c0106850>] common_interrupt+0x18/0x20
> > handlers:
> > [<f9d0f65c>] (snd_emu10k1_interrupt+0x0/0x3c4 [snd_emu10k1])
> > Disabling IRQ #23
> > 
> > The soundcard is still usable but there are no new interrupts.
> > 
> > When I try to reload the ehci module I get:
> > 
> > ACPI: PCI interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 23
> > ehci_hcd 0000:00:1d.7: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB2 EHCI
> > Controller
> > ehci_hcd 0000:00:1d.7: BIOS handoff failed (104, 1010001)
> > ehci_hcd 0000:00:1d.7: can't reset
> > ehci_hcd 0000:00:1d.7: init 0000:00:1d.7 fail, -95
> > ehci_hcd: probe of 0000:00:1d.7 failed with error -95
> > 
> > IRQ23 is normally shared between emu10k1 and the ehci controller
> > without problems.
> 
> it worked normally in 2.6.7 vanilla?

Haven't actually tried vanilly 2.6.7, compiling as we speak. Will report
the results later.
> 
> it would be interesting to know if booting with "acpi_os_name=Linux"
> makes any difference.

This didn't improve things. Should it?

<snip>
ACPI: Subsystem revision 20040615
ACPI: Overriding _OS definition Linux
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (00:00)
PCI: Probing PCI hardware (bus 00)
<snip>
ACPI: PCI interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 23
ehci_hcd 0000:00:1d.7: EHCI Host Controller
ehci_hcd 0000:00:1d.7: BIOS handoff failed (104, 1010001)
ehci_hcd 0000:00:1d.7: can't reset
ehci_hcd 0000:00:1d.7: init 0000:00:1d.7 fail, -95
ehci_hcd: probe of 0000:00:1d.7 failed with error -95
USB Universal Host Controller Interface driver v2.2
ACPI: PCI interrupt 0000:00:1d.0[A] -> GSI 16 (level, low) -> IRQ 16
uhci_hcd 0000:00:1d.0: UHCI Host Controller
<snip>

Jurgen