2.4.21pre3 smp_affinity, very strange

Hans Lambrechts (hans.lambrechts@skynet.be)
Sun, 19 Jan 2003 16:45:03 +0100


I noticed this recently:

pc:~ # cat /proc/interrupts
CPU0 CPU1
0: 39836 0 IO-APIC-edge timer
1: 574 0 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
8: 2 0 IO-APIC-edge rtc
9: 0 0 IO-APIC-edge acpi
12: 20362 0 IO-APIC-edge PS/2 Mouse
14: 7 0 IO-APIC-edge ide0
16: 8906 0 IO-APIC-level aic7xxx
18: 789 0 IO-APIC-level eth0
NMI: 0 0
LOC: 39741 39740
ERR: 0
MIS: 0

pc:~ # cat /proc/irq/0/smp_affinity
ffffffff

pc:~ # echo ffffffff > /proc/irq/0/smp_affinity

pc:~ # cat /proc/interrupts
CPU0 CPU1
0: 50921 947 IO-APIC-edge timer
1: 974 0 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
8: 2 0 IO-APIC-edge rtc
9: 0 0 IO-APIC-edge acpi
12: 25530 0 IO-APIC-edge PS/2 Mouse
14: 7 0 IO-APIC-edge ide0
16: 8935 0 IO-APIC-level aic7xxx
18: 801 0 IO-APIC-level eth0
NMI: 0 0
LOC: 51773 51772
ERR: 0
MIS: 0

Did the APIC or mpparse changes cause this?

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