[Asterisk-Users] Do I have to worry about interrupt sharing here?

[dbruce]

With your current setup, your IDE channels, ethernet card and BRI card are all on seeperate interrupts, so you shouldn't have problems unless you will be making heavy use of USB devices.

It appears that you are using an Intel ICH5 based motherboard. The Intel ICH5 chipset supports IO-APIC. If you recompile your kernel with IO-APIC support each seperate device will get an interrupt of its own, and any potential interrupt problems should disappear.

Regards,
Derek

  ----- Original Message ----- 
  From: Angus Comber 
  To: asterisk-users at lists.digium.com 
  Sent: Sunday, July 24, 2005 9:36 AM
  Subject: [Asterisk-Users] Do I have to worry about interrupt sharing here? 


  Hello

  I am using a Junghanns QuadBRI ISDN card - the module name is qozap.  If I like at my interrupt assignment, qozap is sharing interrupt 10 with libata and uhci_hcd.

  I think libata is the IDE hard drive module and uhci_hcd is a USB module.

  linux:~ # modprobe qozap
  linux:~ # cat /proc/interrupts
             CPU0
    0:   12634579          XT-PIC  timer
    1:         10          XT-PIC  i8042
    2:          0          XT-PIC  cascade
    3:          0          XT-PIC  Intel ICH5
    5:          0          XT-PIC  uhci_hcd
    7:          0          XT-PIC  parport0
    8:          2          XT-PIC  rtc
    9:      21988          XT-PIC  acpi, ehci_hcd, eth0
   10:       7657          XT-PIC  libata, uhci_hcd, qozap
   11:          0          XT-PIC  uhci_hcd, uhci_hcd
   12:        118          XT-PIC  i8042
   14:      54851          XT-PIC  ide0
   15:      25272          XT-PIC  ide1
  NMI:          0
  LOC:          0
  ERR:          0
  MIS:          0

  Should I disable USB in the BIOS?  Should that remove uhci_hcd loading?  Is there a way to re-allocate the interrupt used for libata?

  Angus



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