28 Sep
2004
28 Sep
'04
10:44 a.m.
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