Re: ACPI: PCI Interrupt Link [LNKA] (IRQs *7)

[JaniD++]

Hi,


----- Original Message ----- 
From: "Jan Engelhardt" <jengelh@xxxxxxxxxxxxxxx>
To: "Carlos Martín" <carlosmn@xxxxxxxxx>
Cc: "JaniD++" <djani22@xxxxxxxxxxxxx>; <linux-kernel@xxxxxxxxxxxxxxx>;
"Denis Vlasenko" <vda@xxxxxxxxxxxxx>
Sent: Wednesday, November 30, 2005 6:35 PM
Subject: Re: ACPI: PCI Interrupt Link [LNKA] (IRQs *7)


> >> > *7)
> >> > Nov 28 16:41:36 192.168.2.50 kernel: ACPI: PCI Interrupt Link [LNKD]
(IRQs
> >> > *7)
> >> > Nov 28 16:41:36 192.168.2.50 kernel: ACPI: PCI Interrupt Link [LNKE]
(IRQs 3
> >> > 4 5 6 7 10 11 12 14 15) *0, disabled.
> >> > Nov 28 16:41:36 192.168.2.50 kernel: ACPI: PCI Interrupt Link [LNKF]
(IRQs 3
> >> > 4 5 6 7 10 11 12 14 15) *0, disabled.
> >> > Nov 28 16:41:36 192.168.2.50 kernel: ACPI: PCI Interrupt Link [LNKG]
(IRQs 3
> >> > 4 5 6 7 10 11 12 14 15) *0, disabled.
> >> > Nov 28 16:41:36 192.168.2.50 kernel: ACPI: PCI Interrupt Link [LNKH]
(IRQs 3
> >> > 4 5 6 7 *10 11 12 14 15)
> >> >
> >> > This is normal?  :-)
> >>
> >> I do not understand your question
> >
> >To answer the question, yes, it is perfectly normal to see that.
> >That's just the kernel describing how the PCI IRQs are set up. You
> >have nothing to worry about.
>
> I think it's the "disabled" that worries.

No, i worried about the " (IRQs *7)" format.
I never seen this before....

I searching the bottleneck of my system, and simply found these lines.

I have another question:

           CPU0       CPU1       CPU2       CPU3
  0:        112          0          0   12095059    IO-APIC-edge  timer
  8:          0          0          0       2005    IO-APIC-edge  rtc
  9:          0          0          0          0   IO-APIC-level  acpi
 14:          0          0          0    1922693    IO-APIC-edge  ide0
169:          0          0          0          0   IO-APIC-level
uhci_hcd:usb2
177:          0          0          0          0   IO-APIC-level
uhci_hcd:usb3
185:          0          0          0          0   IO-APIC-level
uhci_hcd:usb4
193:          0          0          0          0   IO-APIC-level
ehci_hcd:usb1
209:          0          0          0  204795144   IO-APIC-level  eth0
217:          0          0          0  424538586   IO-APIC-level  eth1
NMI:          0          0          0          0
LOC:   12095010   12095009   12094905   12094904
ERR:          0
MIS:          0

How can i avoid this?
(all irq on CPU 3)

The  echo /proc/irq/#smp_affinity # >smp_affinity

Has no effect. :-(

I tried it with kernel irq load balancing is on and off.
But nothing is changed. :(

Thanks

Janos



>
>
>
> Jan Engelhardt
> -- 
> | Alphagate Systems, http://alphagate.hopto.org/
> | jengelh's site, http://jengelh.hopto.org/
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