CPU1 is busy:
quad:/home/akpm> cat /proc/interrupts ; sleep 10 ; cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 36059 33847 38948 33846 IO-APIC-edge timer
1: 1 1 1 4 IO-APIC-edge keyboard
2: 0 0 0 0 XT-PIC cascade
4: 1 1 1 0 IO-APIC-edge GDB-stub
8: 0 0 0 1 IO-APIC-edge rtc
12: 0 1 0 0 IO-APIC-edge PS/2 Mouse
14: 1 2 0 3 IO-APIC-edge ide0
15: 7558 7557 7633 8025 IO-APIC-edge ide1
19: 17088 17707 17210 18610 IO-APIC-level ide2, ide3, ide4, ide5
35: 38 71 56 174 IO-APIC-level aic7xxx
38: 955 1798 584 517 IO-APIC-level eth0
58: 25368 19911 27931 20695 IO-APIC-level aic7xxx
NMI: 164030 164030 164030 164030
LOC: 142543 142543 142542 142542
ERR: 0
MIS: 0
CPU0 CPU1 CPU2 CPU3
0: 36388 33847 39289 34178 IO-APIC-edge timer
1: 1 1 1 4 IO-APIC-edge keyboard
2: 0 0 0 0 XT-PIC cascade
4: 1 1 1 0 IO-APIC-edge GDB-stub
8: 0 0 0 1 IO-APIC-edge rtc
12: 0 1 0 0 IO-APIC-edge PS/2 Mouse
14: 1 2 0 3 IO-APIC-edge ide0
15: 7565 7557 7633 8026 IO-APIC-edge ide1
19: 17088 17707 17210 18610 IO-APIC-level ide2, ide3, ide4, ide5
35: 38 71 56 174 IO-APIC-level aic7xxx
38: 969 1798 590 525 IO-APIC-level eth0
58: 25368 19911 27931 20695 IO-APIC-level aic7xxx
NMI: 165032 165032 165032 165032
LOC: 143545 143545 143544 143544
ERR: 0
MIS: 0
-
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