On Thu, Sep 18, 2008 at 07:52:16PM -0700, Steven Noonan wrote: > This IRQ debugging is lots of fun. My /var/log/messages jumped in size > to 241MB. :) > > My test case was a file transfer that basically copies 50MB from a > remote machine's /dev/urandom and writes it to /dev/null locally. That > should be a pretty nice large RX. And jeez, I'm seeing tremendous > download speeds now and I have no idea what is different about my > configuration. I'm getting up to 24 megabit per second transfer rates > (actual), which is incredibly unusual for ath9k. > > I wasn't able to reproduce the IRQ problems on -tip or Linus' current > tree (both with the group rekeying fix applied, which may or may not > be a good idea for reproducing the issue). Even tried doing > rmmod/modprobe in fast succession multiple times. Couldn't get it to > throw up. > > I wonder... My rmmod/modprobe originally was used after the improper > group rekeying before in order to get it back to normal. Perhaps the > encryption has to go wonky before this IRQ issue surfaces? Another > possibility is the earlier mentioned "ACPI: EC: GPE storm detected, > disabling EC GPE". I don't know if it's related or not, but I haven't > waited for it to show up before testing. > > Oh well, if the IRQ problem resurfaces (or if I get a ridiculous > latency tomorrow morning with irqpoll off), I'll try to get some > useful data to help debug it. Thanks for testing, and glad to see this is resolved. Luis -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
