On Tue, 20 Jan 2004 15:34:04 +0000 (GMT)
Ged Haywood <[EMAIL PROTECTED]> wrote:

> > Speaking of IRQs, the count in /proc/interrupts never goes up when
> > the mouse is used, though the LED on the transmitter/receiver shows
> > that the link between it and the mouse is established.
> 
> Did you mention that before?  That needs fixing.

sorry, I forgot that in my first mail.

There is a known problem on some Sony Vaios where a bios bug produces
kernel errors like "have IRQ X want IRQ Y". I verified on the Vaio that
this is actually *not* the problem here.

Also, the 2.4 kernels disable VIA APIC routing in quirks.c. Is this
connected to IRQ problems?

kernel: Local APIC disabled by BIOS -- reenabling.
kernel: Found and enabled local APIC!
kernel: Using local APIC timer interrupts.
kernel: calibrating APIC timer ...
kernel: PCI: Disabling Via external APIC routing

Just for the fun of it, I disabled the disabling by patching quirks.c -
didn't help a bit.

However, IRQs seem fine otherwise: 

           CPU0
  0:    1591415          XT-PIC  timer
  1:      37728          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  5:          0          XT-PIC  acpi
  8:          1          XT-PIC  rtc
  9:     173834          XT-PIC  SoundBlaster
 10:     725010          XT-PIC  usb-uhci, usb-uhci, eth0
 12:     161580          XT-PIC  PS/2 Mouse
 14:     185476          XT-PIC  ide0
 15:         99          XT-PIC  ide1
NMI:          0
LOC:    1591269
ERR:        268
MIS:          0

The large count on IRQ 10 is solely due to the network card.

I tried several kernel boot options concerning acpi and apic, none of
them changed the problem.

I then tried to load the modules for the mouse one after another. The
timeout message seems to happen after insmod'ing hiddev and hid. After
that message usbcore cannot be rmmod'ed as it always reports "busy".

Another question: Do cable usb mice require an IRQ? I don't have any
such mouse here right now to check.

thanks

Mark



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