XT-PIC and XT-PIC-XT Interrupts Difference?

[snark2623]

I am trying to determine the difference between XT-PIC and XT-PIC-XT as depicted in /proc/interrupts. The best I could find was http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/en-US/Reference_Guide/s2-proc-interrupts.html , but that only covers XT-PIC, not XT-PIC-XT. There were also generic wikipedia references, but no reference to XT-PIC-XT.

What is the difference between XT-PIC and XT-PIC-XT?

cat /proc/interrupts reads:

CPU0 CPU1
0: 339 1 XT-PIC-XT timer
1: 8 0 XT-PIC-XT i8042
2: 0 0 XT-PIC-XT cascade
6: 5 0 XT-PIC-XT floppy
8: 1 0 XT-PIC-XT rtc
11: 95490 1665 XT-PIC-XT eth0
12: 111 0 XT-PIC-XT i8042
14: 24691 882 XT-PIC-XT ide0
NMI: 0 0
LOC: 912551 912431
ERR: 123430
MIS: 0

[NeddySeagoon]

snark2623,

You seem to have a dual core or dual CPU system without the APIC enabled.
I thought that a functioning APIC was a requirement for SMP operation.

Do you have APIC support or is it disabled in the kernel or on the kernel command line ?
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

[snark2623]

APIC is disabled from grub "noapic". The kernel configuration is minimal--possibly too minimal as there are difficulties getting the kernel to boot with apic enabled.

How could you tell that from the output of interrupts?

[yabbadabbadont]

[snark2623]

I was referring to

[yabbadabbadont]

Oh, sorry.