USB mouse stops working

USB mouse stops working

[Gerald Haese]

Hi, ...

the following problem is not a new one (for me):

I'm using an SMP system. Everything works fine and (absolutely) stable - 
exept my USB mouse :-( It's the USB version of the Wacom Graphire tablet. The 
mouse works great for some minutes or up to half an hour and it generates a 
lot of interrupts during this time ... And now the mouse stops working. No 
interrupt is generated. The USB printer does not work any more. Unloading and 
reloading of the USB related modules does not help :-( No interrupts are 
registered for USB (seen in /proc/interrupts).

I think it's not a problem of the wacom driver only, the USB is compleatly 
blocked. In the past I had a lot of SMP related interrupt problems in other 
kernel modules (e.g in the hisax). But this problems have gone away during 
the last kernel releases. The USB problem is the last one for me in the 2.4 
kernel ... :-)

Gerald

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Re: USB mouse stops working

[Greg KH]

On Sat, Nov 11, 2000 at 01:01:20AM +0100, Gerald Haese wrote:
> Hi, ...
> 
> the following problem is not a new one (for me):
> 
> I'm using an SMP system. Everything works fine and (absolutely) stable - 
> exept my USB mouse :-( It's the USB version of the Wacom Graphire tablet. The 
> mouse works great for some minutes or up to half an hour and it generates a 
> lot of interrupts during this time ... And now the mouse stops working. No 
> interrupt is generated. The USB printer does not work any more. Unloading and 
> reloading of the USB related modules does not help :-( No interrupts are 
> registered for USB (seen in /proc/interrupts).

What is the output of /proc/interrupts?  Is USB sharing an interrupt
with anything else?

thanks,

greg k-h

-- 
greg@(kroah|wirex).com
http://immunix.org/~greg
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Re: USB mouse stops working

[Gerald Haese]

Am Samstag, 11. November 2000 01:40 schrieb Greg KH:

>> I'm using an SMP system. Everything works fine and (absolutely) stable -
>> exept my USB mouse :-( It's the USB version of the Wacom Graphire tablet.
>> The mouse works great for some minutes or up to half an hour and it
>> generates a lot of interrupts during this time ... And now the mouse stops
>> working. No interrupt is generated. The USB printer does not work any
>> more. Unloading and reloading of the USB related modules does not help :-(
>> No interrupts are registered for USB (seen in /proc/interrupts).

> What is the output of /proc/interrupts?  Is USB sharing an interrupt
> with anything else?

Here it is:

           CPU0       CPU1
  0:      48988      28737    IO-APIC-edge  timer
  1:        457        276    IO-APIC-edge  keyboard
  2:          0          0          XT-PIC  cascade
  7:          2          0    IO-APIC-edge  parport0
  8:          0          2    IO-APIC-edge  rtc
  9:       1085        968    IO-APIC-edge  HiSax
 13:          0          0          XT-PIC  fpu
 16:         11         10   IO-APIC-level  aic7xxx
 18:      14845      14797   IO-APIC-level  usb-uhci
 19:       2982       3028   IO-APIC-level  aic7xxx
NMI:      77639      77638 
LOC:      77623      77619 
ERR:          1

I have a PCI USB board with a uhci compliant (I hope so) VIA chip.


Gerald
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Re: USB mouse stops working

[Greg KH]

On Sat, Nov 11, 2000 at 11:19:47AM +0100, Gerald Haese wrote:
>  18:      14845      14797   IO-APIC-level  usb-uhci

Can you try the uhci.o host controller driver, to see if it has the same
problem?

thanks,

greg k-h

-- 
greg@(kroah|wirex).com
http://immunix.org/~greg
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