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Re: [Leaf-user] cat /proc/interrupts
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From: Brad F. <br...@fr...> - 2002-04-29 04:22:43
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David, one of my firewalls is very similar to the setup you have
Maybe the information I've included inline will help a bit...
On Fri, 26 Apr 2002 17:20:11 PDT David Smead wrote:
> Jacques,
>
> Thanks for the input. I'm not showing interrupts, but the drivers seem to
> load, and I/O space is assigned.
This is similar to the behavior I have seen with the 3c509b NICs that
are not active. I have a 6 NIC setup where eth0-eth2 are up and have
addresses assigned and eth3-eth5 inactive. Interrupts are assigned to
eth0-eth2 but not eth3-eth5:
firewall: -root-
# cat /proc/interrupts
CPU0
0: 12813706 XT-PIC timer
1: 2 XT-PIC keyboard
2: 0 XT-PIC cascade
3: 6 XT-PIC serial
4: 6 XT-PIC serial
5: 279574 XT-PIC eth0
7: 6574 XT-PIC eth1
8: 2 XT-PIC rtc
9: 1061 XT-PIC eth2
13: 1 XT-PIC fpu
NMI: 0
firewall: -root-
# ip addr
1: lo: <LOOPBACK,UP> mtu 3924 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 brd 127.255.255.255 scope global lo
2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100
link/ether 00:a0:24:2a:e6:75 brd ff:ff:ff:ff:ff:ff
inet aa.bb.cc.dd/22 brd 255.255.255.255 scope global eth0
3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100
link/ether 00:a0:24:2a:e6:e6 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.254/24 brd 192.168.1.255 scope global eth1
4: eth2: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100
link/ether 00:a0:24:2a:e6:eb brd ff:ff:ff:ff:ff:ff
inet 192.168.2.254/24 brd 192.168.2.255 scope global eth2
5: eth3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 100
link/ether 00:a0:24:2a:e6:f5 brd ff:ff:ff:ff:ff:ff
6: eth4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 100
link/ether 00:a0:24:2a:e6:fa brd ff:ff:ff:ff:ff:ff
7: eth5: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 100
link/ether 00:a0:24:2a:e7:13 brd ff:ff:ff:ff:ff:ff
> From dmesg:
> eth0: 3c5x9 at 0x300, 10baseT port, address 00 50 04 04 7c 94, IRQ 15.
> 3c509.c:1.18a 17N...@sc...
> http://www.scyld.com/network/3c509.html
> eth1: 3c5x9 at 0x310, 10baseT port, address 00 60 97 79 11 7b, IRQ 3.
> 3c509.c:1.18a 17N...@sc...
> http://www.scyld.com/network/3c509.html
[ remaining examples snipped ]
That's very similar to what I'm seeing:
firewall: -root-
# dmesg | grep 3c509
eth0: 3c509 at 0x300 tag 1, 10baseT port, address 00 a0 24 2a e6 75, IRQ 5.
3c509.c:1.16 (2.2) 2/3/98 be...@ce....
eth1: 3c509 at 0x310 tag 2, 10baseT port, address 00 a0 24 2a e6 e6, IRQ 7.
3c509.c:1.16 (2.2) 2/3/98 be...@ce....
eth2: 3c509 at 0x320 tag 3, 10baseT port, address 00 a0 24 2a e6 eb, IRQ 9.
3c509.c:1.16 (2.2) 2/3/98 be...@ce....
eth3: 3c509 at 0x330 tag 4, 10baseT port, address 00 a0 24 2a e6 f5, IRQ 10.
3c509.c:1.16 (2.2) 2/3/98 be...@ce....
eth4: 3c509 at 0x340 tag 5, 10baseT port, address 00 a0 24 2a e6 fa, IRQ 11.
3c509.c:1.16 (2.2) 2/3/98 be...@ce....
eth5: 3c509 at 0x350 tag 6, 10baseT port, address 00 a0 24 2a e7 13, IRQ 12.
3c509.c:1.16 (2.2) 2/3/98 be...@ce....
> From /proc/interrupts:
>
> CPU0
> 0: 8241668 XT-PIC timer
> 1: 400 XT-PIC keyboard
> 2: 0 XT-PIC cascade
> NMI: 0
> ERR: 0
>
> Any ideas about how this happens are appreciated. This is running on a
> Dell Optiplex 575 - P75 with 24 MB ram, no ide cables plugged in. All
> nics have pnp disabled and were configured as the dmesg shows.
Are any of your interfaces up? If not, the /proc/interrupts
output you are seeing is inline with what I'm seeing on my
firewall. (Not that it matters, but it's a Dell Optiplex GMT
5133.) My guess is that everything is normal and the
interrupts will show up in /proc/interrupts when the interfaces
are brought up.
--Brad
> Sincerely,
>
> David Smead
> http://www.amplepower.com.
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