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    SubjectRe: [ath9k-devel] ath9k: massive unexplained latency in 2.6.27 (rc5, rc6, probably others)
    On Thu, Sep 18, 2008 at 11:42 AM, Luis R. Rodriguez
    <lrodriguez@atheros.com> wrote:
    > On Thu, Sep 18, 2008 at 11:34 AM, Luis R. Rodriguez
    >> irqpoll is a monster of evil and that should make your system crawl to
    >> its knees. I would advise instead we work with you fixing the the
    >> missed interrupts issue upon rmmod.
    >
    > Also, please provide the output of
    >
    > cat /proc/interrupts

    Note that the problem necessitating use of irqpoll in the first place
    seems to only happen under certain conditions. I am unsure what these
    conditions are. Before 'ath9k: connectivity is lost after Group
    rekeying is done', I had used rmmod/modprobe as my solution to the
    issue, which triggered the IRQ issue.

    alcarin steven # cat /proc/interrupts
    CPU0 CPU1
    0x0: 63227 0 IO-APIC-edge hpet
    0x8: 1 0 IO-APIC-edge rtc0
    0x9: 13080 0 IO-APIC-fasteoi acpi
    0xe: 8195 0 IO-APIC-edge ide0
    0xf: 0 0 IO-APIC-edge ide1
    0x10: 36 0 IO-APIC-fasteoi uhci_hcd:usb5
    0x11: 10645 0 IO-APIC-fasteoi ath
    0x12: 42 0 IO-APIC-fasteoi uhci_hcd:usb4
    0x17: 919 0 IO-APIC-fasteoi ehci_hcd:usb1, uhci_hcd:usb2
    0x13: 32885 0 IO-APIC-fasteoi uhci_hcd:usb3,
    ata_piix, ohci1394
    0x200100: 1 0 PCI-MSI-edge eth0
    0x16: 223 0 IO-APIC-fasteoi HDA Intel
    NMI: 0 0 Non-maskable interrupts
    LOC: 78087 95718 Local timer interrupts
    RES: 11576 16384 Rescheduling interrupts
    CAL: 6862 8889 Function call interrupts
    TLB: 54 41 TLB shootdowns
    TRM: 0 0 Thermal event interrupts
    THR: 0 0 Threshold APIC interrupts
    SPU: 0 0 Spurious interrupts
    ERR: 0


    >
    > and also please do not cross post to all these lists, just use
    > linux-wireless or ath9k.
    >

    Sorry, but in the past I've posted to linux-wireless, ath9k-devel, and
    all the maintainers of ath9k and didn't get a single response (except
    a 'me too' from a fellow ath9k user). I didn't just want to hear
    crickets this time.

    - Steven


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