Messages in this thread | | | Date | Thu, 18 Sep 2008 13:25:58 -0700 | From | "Steven Noonan" <> | Subject | Re: [ath9k-devel] ath9k: massive unexplained latency in 2.6.27 (rc5, rc6, probably others) |
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On Thu, Sep 18, 2008 at 1:18 PM, Justin Mattock <justinmattock@gmail.com> wrote: > On Thu, Sep 18, 2008 at 12:23 PM, Steven Noonan <steven@uplinklabs.net> wrote: >> On Thu, Sep 18, 2008 at 12:00 PM, Steven Noonan <steven@uplinklabs.net> wrote: >>> 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. >> >> I wonder if this is related: >> >> alcarin ~ # dmesg | grep GPE >> [ 0.166806] ACPI: EC: GPE = 0x17, I/O: command/status = 0x66, data = 0x62 >> [ 685.409077] ACPI: EC: GPE storm detected, disabling EC GPE > > FWIW, you might want to try this pach > in this thread: > http://www.gossamer-threads.com/lists/linux/kernel/966076 > I was receiving a disable irq #23 this patch"knock on wood", > seems to help with this issue. >
Both the patches there affect EHCI, though. If I was having a USB controller fink out with "IRQ X: nobody cared", then that patch would probably indeed be applicable.
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