Interrupt load high after 73 minutes uptime with ath(4) hostap

From: Martin (nakal_at_web.de)
Date: 01/31/05

  • Next message: José M. Fandiño: "50% of packets lost only on local interfaces" 
    To: stable@freebsd.org
Date: Mon, 31 Jan 2005 18:58:08 +0100

    I'm running:
    FreeBSD 5.3-STABLE FreeBSD 5.3-STABLE #0: Mon Jan 31 00:54:51 CET 2005
    i386

    The card is (Netgear WG311T):
    ath0: <Atheros 5212> mem 0xe7000000-0xe700ffff irq 9 at device 15.0 on
    pci0

    After about 73 minutes uptime my PC is busy processing interrupts.
    Top shows 90% in IRQ. Everything is slowed down. Earlier kernels
    showed same effect.

    When the problem appears, I start "ifconfig ath0 down" then
    "ifconfig ath0 up" and everything is ok again for a certain
    period of time.

    Further info:
    IRQ 9 is being shared with ACPI (I tried to turn off ACPI, no effect).
    Earlier it was shared with my VGA-card, but showed exactly the same
    symptoms.

    The high interrupt load is not being reported like e.g. an interrupt
    storm on lpt. The system is simply slowed down.

    Martin

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  • Next message: José M. Fandiño: "50% of packets lost only on local interfaces"

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