Le Mercredi 13 Juillet 2005 01:16, Protasevich, Natalie a écrit :
>
> At this point, you'll need to set the system back to its original state
> that you started with, and have both "apic=debug" and "pci=routeirq" as
> boot options. I'd say use the last kernel that you prepared with USB
> support th
> > Now that we know which is the offending device, it should
> be easy to
> > find out why the IRQ assignments go wrong. That certainly
> needs to be
> > fixed, even though Michel's problem appears to be solved.
>
> Well, it's solved by currently giving me the choice between
> no USB 2.0 an
Le Mardi 12 Juillet 2005 23:37, Alan Stern a écrit :
>
> Then it's definite. The EHCI controller is issuing interrupt requests on
> IRQ 21, but its driver is registered on a different IRQ. Hence the
> interrupts aren't getting handled correctly.
>
> So probably the usb_handoff parameter won't be
On Tue, 12 Jul 2005, Michel Bouissou wrote:
> I've tested as you suggest :
>
> - Disabled USB 2.0 in BIOS
>
> - Renamed ehci_hcd.ko so that modprobe can't find it
>
> - Booted the test-patched kernel with same options as previously, MOUSE
> UNPLUGGED.
>
> - After boot "cat /proc/interrupts" s
> > On the other hand, _something_ was generating an interrupt request
> > that got mapped to IRQ 21 by the hardware. And these
> requests do seem
> > to be associated with USB activity. Maybe the EHCI
> controller is responsible?
> > One of your postings showed both uhci_hcd:usb2 and ehci_hc
Le Mardi 12 Juillet 2005 20:57, Alan Stern a écrit :
> On the other hand, _something_ was generating an interrupt request that
> got mapped to IRQ 21 by the hardware. And these requests do seem to be
> associated with USB activity. Maybe the EHCI controller is responsible?
> One of your postings
On Tue, 12 Jul 2005, Michel Bouissou wrote:
> I've booted with the patched kernel in the following way:
>
> - BIOS option for mouse support still off ;
>
> - Kernel commandline:
> kernel /vmlinuz-2.6.12-6mib7test root=/dev/evms/lv_racine ro 3 usb-handoff
> devfs=nomount noquiet vga=791
Okay, g
Le Mardi 12 Juillet 2005 19:03, Michel Bouissou a écrit :
>
> Okay, the patch applied easily and the kernel is now compiling. When
> installed, I'll try and boot it (and will use a PS/2 mouse instead of my
> current USB mouse, or should I rather try to plug my USB mouse to the
> ehci_hcd controller
On Tue, 12 Jul 2005, Michel Bouissou wrote:
> > In case it's not already clear, when you install this patch the UHCI
> > controllers will not be useable.
>
> Okay, the patch applied easily and the kernel is now compiling. When
> installed, I'll try and boot it (and will use a PS/2 mouse instead
Le Mardi 12 Juillet 2005 16:12, Alan Stern a écrit :
>
> Okay, the patch (for 2.6.12) is below. It does several things:
>
> Prevents the system from reading the port status registers,
> so the computer won't know when any devices are plugged in.
>
> Makes the system think there a
On Tue, 12 Jul 2005, Michel Bouissou wrote:
> > To try and help pin things down, tomorrow (i.e., Tuesday) I'll send you a
> > test patch to completely disable the UHCI controllers, leaving them awake
> > and idle, not generating interrupts. If you still get those spurious
> > IRQs, they will have
Le Mardi 12 Juillet 2005 03:54, Alan Stern a écrit :
> > So the problem is circled to 2.6 kernel, uhci_hcd and UP IO-APIC.
>
> Don't rule out the hardware too quickly. 2.4 and 2.6 manage the UHCI
> controllers in different ways.
I saw ;-)
> In particular, the usb-uhci driver in 2.4 does not susp
On Mon, 11 Jul 2005, Michel Bouissou wrote:
> Hi Nathalie,
>
> Thanks for your answer and pointer. Unfortunately it doesn't help.
>
> The patch you mention won't apply on my kernel alone, I need first to apply
> the patch from
> http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.
Le Dimanche 10 Juillet 2005 20:50, Protasevich, Natalie a écrit :
>
> Michel,
> Symptoms that you describe resemble several IRQ problems with VIA
> chipset reported by others (but not quite...) Could you check on
> bugzilla #4843 please
> http://bugzilla.kernel.org/show_bug.cgi?id=4843 and see if t
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Michel Bouissou
> Sent: Sunday, July 10, 2005 2:11 AM
> To: linux-kernel@vger.kernel.org
> Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> Subject: Kernel 2.6.12 + IO-APIC + uhci_hcd = Trouble
>
> Hi
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