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FreeBSD General Other questions regarding FreeBSD which do not fit in any of the categories below. |
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interrupt storm and irq madness
Hey all,
i am running FreeBSD 7 stable i386 on my Toshiba Portege 3110ct. When I plug in my pcmcia Atheros wireless card I get this message a few times: interrupt storm detected on "irq11:"; throttling interrupt source This message was really bad when I had APIC compiled in the kernel, I do not know why but since I have taken that out it has mostly gone away. A vmstat -i without the Atheros card shows cbb0 (my cardbus) and uhci0 both using irq11. When I plug in the Atheros card the vmstat -i only shows cbb0 and ath0 on irq11 and does not show the uhci0. Now the cardbus is hard coded in the bios for irq11 and even editing the pccard.conf the Atheros card grabs irq11 also. I am only using 5 or 6 irq's (I am not at my laptop right now), is there anyway to force the uhci0 to another irq. The wireless works fine, i just do not like the interrupt storm errors. Does anyone have any other suggestions to fix this. I have read about the kernel parm to up the interrupt requests, but that just seems like I am supressing the messages of the real problem. Any help would be appreciated. Sean |
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Had the same problem on a Thinkpad T41 with an Atheros 5212 and moved back to 6.3, as everything works fine there. However, maybe you want to have a look at polling(4) whether ath is supported in the meantime.
Even with USB and everything that might cause conflicts disabled, I got this error on 7.0 - even if vmstat -i shows no conflicts. Maybe try this one first - disable everything that is not required and afterwards look at vmstat ... |
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I am also getting an interrupt storm with FBSD 7.1 and tried Oliver-H suggestion to raise the interrupt threshold in /etc/sysctl.conf
My /etc/sysctl.conf: Quote:
Quote:
Quote:
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Try pcBSD 7.1.1
I have been unable to get the irq 11 interrupt storm to go away on my laptop. I in general like the atheros chipset cards, use them all the time with my old Linux laptops, not problem, and they worked find with FreeBSD until I decided to upgrade past 7.0. Not the irq11 interrupts lock up my system every time. I have a compaq armada e500 for this configuration, but I doubt that the laptop has anything to do with it.
Anyway, I installed PC-BSD 7.1.1 (based on FreeBSD 7.2-Stable) without a hitch. I don't know what they did, didn't find anything obvious in config files like rc.conf, but it works great. If you have to have FreeBSD but are not a purist about where the directories are, try PC-BSD. Otherwise, I'd recommend netbsd or openbsd. I didn't have that problem there. |
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wpa_supplicant: atheros up & down like a yo-yo, interrupt storms too | sim | FreeBSD General | 5 | 18th June 2008 05:12 AM |