A general tip: - use APIC even on a single processor system
APIC (Advanced Programmable Interrupt Controller?) or more specifically IO-APIC, is a feature on newer motherboards (>=2000) that allows the OS to allocate more than 15 IRQs. Windows XP depends on this feature to solve the IRQ sharing issue, APIC is a requirement for Windows logo. In Linux APIC is a little murky, it's only turned on if you're using an SMP kernel. I've found that even on a single processor system, using an SMP kernel will turn on IO-APIC. During kernel config, there're 2 options for uniprocess APIC and IO-APIC. For some reasons, I can't get the uniprocess IO-APIC to work. But if I set the SMP option, it does come on. On my nForce Athlon, using RH's SMP kernel will allow the OS to allocate up to IRQ 19 without any sharing. IIRC, the maximum is 24/processor.
FYI.
Joe Antkowiak wrote:
You can force IRQs in your BIOS config, I would set each card to its own IRQ that doesn't get shared with anything else. Disable your serial and parallel ports if you aren't using them and use 3,4,5,7
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Derek Beaumont Sent: Monday, July 07, 2003 4:15 PM To: [EMAIL PROTECTED] Subject: [Asterisk-Users] PCI Master Abort
I am always getting multiple PCI Master Abort messages when I try to plug in a second TDM400P. I have asked this question before, but I nothing really solved my problem and I just put it on the back burner for a while. I am at a point where this is a crucial issue.
I have read that the Zaptel devices share an IRQ, is this causing the problem? Is there a way that I can manually change the IRQs of the devices?
By the way, my hardware situation is as follows: 2 X100P 2 TDM400P
Any help is always appreciated.
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