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Date: Mon, 08 Dec 2003 14:24:26 -0500
From: Matthew Kanar <mkanarlists@kanar.net>
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To: linux-kernel@vger.kernel.org
Subject: Re: SMP broken on Dell PowerEdge 4100/200 under 2.6.0-testxx?
References: <10wU2-1mR-11@gated-at.bofh.it> <10wU2-1mR-13@gated-at.bofh.it> <10wU2-1mR-15@gated-at.bofh.it> <10wU3-1mR-17@gated-at.bofh.it> <10wU3-1mR-19@gated-at.bofh.it> <10wU3-1mR-21@gated-at.bofh.it> <10wU3-1mR-23@gated-at.bofh.it> <10wU3-1mR-25@gated-at.bofh.it> <10wU2-1mR-9@gated-at.bofh.it> <10xGk-38t-15@gated-at.bofh.it>
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Zwane Mwaikambo wrote:
> Are you sure you're not running the userspace irq balancer (ps ax | grep
> irqbalance)?

<blush>

Well, userspace irqbalancer wasn't running, but it was started and then
stopped during the system startup.  My apologies.

A few changes in the rcX.d directories and a few reboots later, I have
found that this system exhibits similar behavior to that of others in
this thread.

/proc/interrupts without noirqbalance:
            CPU0       CPU1
   0:     331404         14    IO-APIC-edge  timer
   1:         10          1    IO-APIC-edge  i8042
   2:          0          0          XT-PIC  cascade
   8:          0          1    IO-APIC-edge  rtc
  12:         49          1    IO-APIC-edge  i8042
  14:       5503          0    IO-APIC-edge  ide0
  15:          1          0    IO-APIC-edge  ide1
  16:       1004          1   IO-APIC-level  eth0
NMI:          0          0
LOC:     331292     331291
ERR:          0
MIS:          0

/proc/interrupts with noirqbalance:

            CPU0       CPU1
   0:      70723     137438    IO-APIC-edge  timer
   1:          2          9    IO-APIC-edge  i8042
   2:          0          0          XT-PIC  cascade
   8:          1          0    IO-APIC-edge  rtc
  12:          2         48    IO-APIC-edge  i8042
  14:       3222       1850    IO-APIC-edge  ide0
  15:          1          0    IO-APIC-edge  ide1
  16:        471        459   IO-APIC-level  eth0
NMI:          0          0
LOC:     208023     208022
ERR:          0
MIS:          0

--Matt Kanar