Re: SMP broken on Dell PowerEdge 4100/200 under 2.6.0-testxx?

[William Lee Irwin III]

On Sat, Dec 06, 2003 at 10:32:45AM +0800, Colin Coe wrote:
> This indicates to me that the processing load is being evenly distributed
> accross the two processes.  Under v2.6.0-testxx however, 'cat
> /proc/interrupts' shows this:
> [root@host root]# cat /proc/interrupts
>            CPU0       CPU1
>   0:     633122         30    IO-APIC-edge  timer
>   1:        207              IO-APIC-edge  i8042
>   2:                              XT-PIC  cascade
>   4:         48          1    IO-APIC-edge  serial
>   5:        449          1   IO-APIC-level  eth1
>  10:        135          1   IO-APIC-level  aic7xxx
>  11:       1447          1   IO-APIC-level  eth0
>  12:         61              IO-APIC-edge  i8042
>  14:                       IO-APIC-level  CS46XX
>  15:      14982          1   IO-APIC-level  megaraid

2.6 does balancing across packages, not logical cpus, so this will
happen and it will be largely harmless, except for what appears to
be some kind of bug where it's stealing the timer from logical cpu 1.


-- wli
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