[LAU] priorities of interrupts or other fixes

Atte André Jensen atte.jensen at gmail.com
Mon Mar 8 15:02:09 EST 2010

Jeremy wrote:

> jeremy at soushi:~$ cat /proc/interrupts | grep ohci1394
>  16:    1123463    1075232   IO-APIC-fasteoi   uhci_hcd:usb3, ohci1394,
> eth1, mmc0, jmb38x_ms:slot0, nvidia
> IRQ 16 in my case. In your case also according to your opening mail. You
> can see that it's crowded on 16 in my case, I can't get my Firewire to
> work without the help of rtirq.

That's great, thanks. Can't believe I overlooked that!

I'm also on irq 16, it seems, and only sharing with one usb port:
atte at vestbjerg:~$ cat /proc/interrupts | grep ohci1394
  16:     110664     111091   IO-APIC-fasteoi   uhci_hcd:usb3, ohci1394

Two questions:

1) Why doesn't `pidof IRQ-16` return anything here, I guess I need that 
to call chrt, right:

atte at vestbjerg:~$ pidof IRQ-16
atte at vestbjerg:~$ pidof IRQ 16
atte at vestbjerg:~$ pidof "IRQ 16"
atte at vestbjerg:~$ pidof "IRQ-16"
atte at vestbjerg:~$

2) I'm hoping the usb shared with my firewire is one of the three usb 
ports, how can I investigate further in this direction? Ultimately I'd 
like to be able to leave whatever-usb-is-sharing-irq-with-the-firewire 


http://atte.dk   http://modlys.dk

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