Re: [<02282da7>] (usb_hcd_irq+0x0/0x4b) Disabling IRQ #5 - USBDevices do not work

From: Alan Cox
Date: Wed Dec 08 2004 - 07:08:52 EST


On Maw, 2004-12-07 at 20:52, Florian Krammel wrote:
> > > Ditto, and this is quite possibly the root cause. That suggests the BIOS
> > > handover code for EHCI is insufficient for some cases (and it appears to
> > > be looking at the code quickly - it should register IRQ 5 before doing a
> > > handover which it does but it probably needs to just ack and mask IRQ 5
> > > during the handover. It could be another device breaking IRQ5 however)
> > >
> > >
> > > What occurs if you build a kernel with EHCI disabled, ditto what occurs
> > > if you boot with init=/bin/sh and then load ohci before ehci ?
>
> I don't tested this because "irqpoll" solve my problem. Are you
> interested in the result? I can try it.

I would be very interested to know if this makes a difference yes

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