From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Florian Krammel <florian_kr@gmx.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [<02282da7>] (usb_hcd_irq+0x0/0x4b) Disabling IRQ #5 - USB Devices do not work
Date: Wed, 08 Dec 2004 11:03:51 +0000 [thread overview]
Message-ID: <1102503828.23635.1.camel@localhost.localdomain> (raw)
In-Reply-To: <1102452729.7531.29.camel@orange-bud>
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
next prev parent reply other threads:[~2004-12-08 12:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-06 11:48 [<02282da7>] (usb_hcd_irq+0x0/0x4b) Disabling IRQ #5 - USB Devices do not work florian
2004-12-06 13:28 ` Alan Cox
[not found] ` <1102450409.7531.10.camel@orange-bud>
2004-12-07 20:52 ` Florian Krammel
2004-12-08 9:15 ` Florian Krammel
2004-12-08 11:03 ` Alan Cox [this message]
2004-12-12 13:38 ` Florian Krammel
2004-12-06 13:29 ` Florian Krammel
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