[ltp] Re: ACPI Hibernate and Suspend Strange behavior 2.6.7/-mm1

[Len Brown]

On Thu, 2004-07-15 at 17:57, Florian Weimer wrote:
> * David Weinehall:
> 
> > Strange.  suspend works for me (T40 though, not T40p), latest
> > BIOS-version, ACPI enabled, APM disabled.
> 
> Thanks for your /proc/interrupts file.  You have a lot less IRQ
> sharing than me:
> 
>            CPU0       
>   0:    5484369          XT-PIC  timer
>   1:      13698          XT-PIC  i8042
>   2:          0          XT-PIC  cascade
>  11:     301909          XT-PIC  uhci_hcd, uhci_hcd, uhci_hcd, Intel
> 82801DB-ICH4, eth0, yenta, yenta, radeon@PCI:1:0:0
>  12:      14446          XT-PIC  i8042
>  14:      63403          XT-PIC  ide0
>  15:         21          XT-PIC  ide1
> NMI:          0 
> ERR:          0

> I wonder why the system has got such a high affinity to IRQ 11.  I've
> never seen so much IRQ sharing before. 8-/

Only the BIOS knows why -- Linux doesn't move IRQs around in PIC mode.
But you can make it attempt to balance them with "acpi_irq_balance" if
you're feeling adventerous.

cheers,
-Len