[Asterisk-Users] OT: How do I know if I should have IO-APIC?

[Jayson Vantuyl]

On Fri, Dec 10, 2004 at 10:18:17AM -0500, David Cook wrote:
> With regards to the IRQ sharing situation on 400P/X100P cards how would
> I know if I can use IO-APIC?
> 
> I am running RHEL 3 on a Dell PowerEdge 1400SC. RHEL installs without
> IO-APIC support. Is this because RH is overly conservative or because
> it queried my machine and that is the appropriate option?
> 
> Does RHEL 3 have a kernel for IO-APIC if appropriate or am I expected to
> do a custom kernel build to get there from here?
> 
> dbc.
Mmmmm.  I know you can determine if you're using an IOAPIC by cat'ing
/proc/interrupts.  It should say what interrupt controller is being used
by each interrupt.

Whenever I have interrupt problems, I boot up with "noapic" on the
command line.  That forces XT-PIC support, so it may help you debug.

Good luck.

-- 
Jayson Vantuyl