> Subject: Re: Interrupt storm with 7.0 > On Sunday 13 April 2008 14:41:51 lysergius2001 wrote: > > > Recently installed 7.0-RELEASE on an i386 as upgrade from 6.3-RELEASE and > > now have a continuous interrupt storm on IRQ17. This is a shared IRQ for > > ath0 and echi0. Never saw this on 6.3??? Any suggestions? > > I've seen something similar on an old dell laptop, on 6.3. It would cause an > interrupt storm when it got disconnected by the hostap for beacon misses. ath > driver as well, not sure what it shared it with. > Unfortunately, I never got around to reporting it and the machine has been > destroyed by little mongrols, I mean the sweet boys. > > I know this doesn't help you, but at least you know that there is 'something' > with the ath driver that can cause interrupt storms.
Had the same problem by upgrading from FBSD-6.3 to FBSD-7.0 right up start. I think it got some thing to do with "device cpufreq" and shared IRQ ! I had a IRQ-storm on IRQ-10, but my iwi0 need it. well to solved the problem temporally I did compile my kernel without "device cpufreq" as I had on FBSD-6.3, but the down side is that my 1.8Ghz Laptop will only run very very slow with 0.228Ghz... after that (ONLY on FBSD-7.0) at the end I just removed the other PCMCIA card (a Sierra Wireless) which using IRQ-10 too, but is in no function on FreeBSD any way. after that I compiled the kernel with "device cpufreq" and I'm up o 1.8GHz without IRQ-storm again. I know this is not a finally solution, but I think we have to wait for FBSD-7.1 or higher to brush out all this little faults. I had a similarly problem when I was updating from FBSD-5.4 to FBSD-6.0 with the iwi0 driver, lots of IRQ-storms, had some thing to do with "device cpufreq" and ACPI that time too ! hope this will go away in future. --- Hanno
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