Re: em interrupt storm

From: Barney Wolff (barney_at_databus.com)
Date: 11/24/05

  • Next message: Sun Le: "meet up with a problem when doing the installation" 
    Date: Thu, 24 Nov 2005 02:14:06 -0500

    I've observed the interrupt aliasing problem on an Asus A7M266-D
    with 2 Athlon 2200-MPs, so it's not confined to the Intel chipset.
    Here's the evidence (there is nothing connected to ehci0):
    lab:/home/barney $ vmstat -i
    interrupt total rate
    irq6: fdc0 10 0
    irq13: npx0 1 0
    irq14: ata0 12380884 6
    irq15: ata1 58 0
    irq16: ehci0 212494994 109
    irq17: pcm0 4551325 2
    irq18: ohci1 4275754 2
    irq19: fxp0 ohci0+ 124765 0
    irq20: em0 210064498 108
    irq21: ahc0 4245565 2
    irq22: ahc1 4261858 2
    cpu0: timer 3877840775 1999
    cpu1: timer 3877813525 1999
    Total 8208054012 4233
    lab:/home/barney $ uname -a
    FreeBSD lab.databus.com 7.0-CURRENT FreeBSD 7.0-CURRENT #1: Thu Oct 20 16:16:12 EDT 2005 toor@lab.databus.com:/usr/obj/usr/src/sys/LAB i386

    It's been there for a long time - I just assumed it was a hw issue. 

    -- 
Barney Wolff         http://www.databus.com/bwresume.pdf
I never met a computer I didn't like.
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