brad stafford wrote: > I have a Delta 1010 and I'm running an AMD Barton 2.6 with 5 PCI > slots. The question is what the heck are IRQ 16 and 22? IRQ 16 is the 17th interrupt. IRQ 22 is the 23th interrupt. > I moved the sound and ethernet cards around to get them to 16 and > 22 as they used to be eth0 on 21 and ICE1712 on 22. > > [brad@mars brad]$ cat /proc/interrupts > CPU0 > ... > 16: 0 IO-APIC-level ICE1712 > 22: 21 IO-APIC-level eth0 Why? What's the problem? > Is 16 like the equivalent of IRQ 3 since it's following 15? No, it would be correct to say that IRQ 16 is IRQ 16. ;-) The days of XT-compatible interrupt controllers with no more than 16 interrupts are fortunately past. The interrupts above 15 are used for PCI devices. > I did turn off USB support in the BIOS. USB interrupts usually don't cause noticeable latencies. HTH Clemens