From: Alan Stern <stern@rowland.harvard.edu>
To: Michel Bouissou <michel@bouissou.net>
Cc: "Protasevich, Natalie" <Natalie.Protasevich@UNISYS.com>,
<linux-kernel@vger.kernel.org>, <mingo@redhat.com>
Subject: Re: [SOLVED ??] Kernel 2.6.12 + IO-APIC + uhci_hcd = Trouble
Date: Mon, 11 Jul 2005 15:43:49 -0400 (EDT) [thread overview]
Message-ID: <Pine.LNX.4.44L0.0507111539280.6399-100000@iolanthe.rowland.org> (raw)
In-Reply-To: <200507112133.07471@totor.bouissou.net>
On Mon, 11 Jul 2005, Michel Bouissou wrote:
> Le Lundi 11 Juillet 2005 20:36, Alan Stern a écrit :
> > It's also possible that the UHCI controllers are generating the unwanted
> > interrupt requests. You should make sure that Legacy USB Support is
> > turned off in your BIOS settings.
>
> My motherboard both holds USB 1.1 and USB 2.0 controllers. I don't have a
> "Legacy USB Support" option in my BIOS, all my USB options are the following:
>
> Enable USB 1.1 controller: YES (Surely relates to my true USB 1.1 controller)
>
> Enable USB 2.0 controller: YES (Same for the high speed controller ?)
>
> Enable USB keyboard: NO
>
> Enable USB mouse support: YES (Well, I have one ;-)
That's what I was talking about. BIOS support for keyboard and mouse is
called "Legacy" support, because it emulates plain old non-USB AT-type
devices. I bet if you turned off the "Enable USB mouse support" option
then everything would work.
> I didn't change anything regarding these so far.
>
> > You can also try adding the "usb-handoff" kernel parameter to your boot
> > command line.
>
> Hey !! This one looks like the MIRACLE-OPTION !!
>
> I just booted using my 2.6.12 kernel patched with Nathalie's patches (don't
> know if they help in there...) and the problem seems to be gone !
>
> Nothing complains anymore about the interrupt. I have:
>
> [root@totor etc]# cat /proc/interrupts
> CPU0
> 0: 934501 IO-APIC-edge timer
> 1: 4611 IO-APIC-edge i8042
> 2: 0 XT-PIC cascade
> 4: 2779 IO-APIC-edge serial
> 7: 3 IO-APIC-edge parport0
> 14: 7909 IO-APIC-edge ide4
> 15: 7918 IO-APIC-edge ide5
> 16: 38447 IO-APIC-level nvidia
> 18: 2982 IO-APIC-level eth0, eth1
> 19: 37041 IO-APIC-level ide0, ide1, ide2, ide3, ehci_hcd:usb4
> 21: 52036 IO-APIC-level uhci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb3
> 22: 2850 IO-APIC-level VIA8233
> NMI: 0
> LOC: 934453
> ERR: 0
> MIS: 0
>
>
> ...now let's see with time if this is stable...
>
> A thousand thanks for your suggestion Alan !
You're welcome.
> (Kernel 2.4 was working plain good without such a boot option, I didn't know
> it existed...)
A lot has changed since 2.4... not always for the better!
Alan Stern
next prev parent reply other threads:[~2005-07-11 19:45 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-10 18:50 Kernel 2.6.12 + IO-APIC + uhci_hcd = Trouble Protasevich, Natalie
2005-07-11 9:06 ` Michel Bouissou
2005-07-11 18:36 ` Alan Stern
2005-07-11 19:33 ` [SOLVED ??] " Michel Bouissou
2005-07-11 19:43 ` Alan Stern [this message]
2005-07-11 20:02 ` Michel Bouissou
2005-07-11 20:16 ` Alan Stern
2005-07-11 20:46 ` Michel Bouissou
2005-07-11 20:58 ` Michel Bouissou
2005-07-11 21:21 ` [NOT solved] " Michel Bouissou
2005-07-11 21:21 ` [SOLVED ??] " Alan Stern
2005-07-11 21:34 ` Michel Bouissou
2005-07-12 1:54 ` Alan Stern
2005-07-12 7:54 ` Michel Bouissou
2005-07-12 14:12 ` Alan Stern
2005-07-12 17:03 ` Michel Bouissou
2005-07-12 18:15 ` Alan Stern
2005-07-12 18:16 ` Michel Bouissou
2005-07-12 18:57 ` Alan Stern
2005-07-12 20:40 ` Michel Bouissou
2005-07-12 21:37 ` Alan Stern
2005-07-12 22:01 ` Michel Bouissou
2005-07-11 19:52 [SOLVED ??] " Protasevich, Natalie
2005-07-11 20:13 ` Michel Bouissou
2005-07-12 7:24 ` Alexander Fieroch
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