Re: Freebsd 8.0 ath, Soekris 4511, tinybsd, IRQ storm.

Jose Amengual M wrote:
> Hi guys.
>
> I'm working with FreeBSD 8.0 current using tinybsd to make a image for 
> my Soekris 4511 box.
>
> The build image is ok and the system boot up perfect, It detect all 
> the network cards includin the ath0 that is a 400 mw NMP-8602 PLUS.
>
> In the moment that I do :
>
> ifconfig wlan create wlandev ath0
> ifconfig wlan up
>
> I'm reciving this :
>
> interrupt storm detected on "irq11:"; throttling interrupt source
>
> and is only when I take up the wlan0 interface, if I don't do anything 
> with the ath0 card, the system works perfect.
>
> I search in the net for an info and I found a lot of information about 
> how to build FreeBSD in Soekris boxes, kernel conf files, etc, but 
> nothing about this caind of problem in version 8.0.
>
> My vmstat -i is :
>
> tinybsd# vmstat -i
> interrupt                          total       rate
> irq0: clk                         170695        490
> irq4: sio0                          1993          5
> irq8: rtc                          43697        125
> irq9: sis1                           392          1
> irq11: ath0                        32626         93
> irq14: ata0                        16261         46
> Total                             265664        763
>
> my pciconf -lv is :
>
> tinybsd# pciconf -lv
> hostb0_at_pci0:0:0:0:      class=0x060000 card=0x00000000 chip=0x30001022 
> rev=0x00 hdr=0x00
>    class      = bridge
>    subclass   = HOST-PCI
> cbb0_at_pci0:0:9:0:        class=0x060700 card=0x00000000 chip=0xac50104c 
> rev=0x02 hdr=0x02
>    class      = bridge
>    subclass   = PCI-CardBus
> ath0_at_pci0:0:16:0:       class=0x020000 card=0x2062168c chip=0x001b168c 
> rev=0x01 hdr=0x00
>    class      = network
>    subclass   = ethernet
> sis0_at_pci0:0:18:0:       class=0x020000 card=0x0020100b chip=0x0020100b 
> rev=0x00 hdr=0x00
>    class      = network
>    subclass   = ethernet
> sis1_at_pci0:0:19:0:       class=0x020000 card=0x0020100b chip=0x0020100b 
> rev=0x00 hdr=0x00
>    class      = network
>    subclass   = ethernet
>
>
> My dmesg with ath part :
>
> ath0: <Atheros 5212> mem 0xa0010000-0xa001ffff irq 11 at device 16.0 
> on pci0
> ath0: [ITHREAD]
> ath0: WARNING: using obsoleted if_watchdog interface
> ath0: mac 10.5 phy 6.1 radio 6.3
> sis0: <NatSemi DP8381[56] 10/100BaseTX> port 0xe100-0xe1ff mem 
> 0xa0020000-0xa0020fff irq 5 at device 18.0 on pci0
> sis0: Silicon Revision: DP83816A
>
>
> I can send more information if is needed.
>
> I already change the wireless card ( I have for of the same) and the 
> matherboard, I upgrade the bios of the Soekris board to 1.38.
>
> Any ideas about the irq storm ?
>
> any special configurations ?
>

What are the interrupts?  Does the storm persist or stop?  Does your 
card otherwise work as expected?

I've noticed an increase in system complaints about interrupt storms on 
many devices, not just ath, as though the tunable thresholds are too low.

    Sam