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

From: Jose Amengual M <pepe_at_rdc.cl>
Date: Mon, 26 May 2008 13:55:18 -0700
Hi Sam.


> What are the interrupts?  = IRQ 11 is for ath, do you need anything  
> else ? ( please let me know )


> Does the storm persist or stop?  = The storm persist, never stop,  
> but if you do an ifconfig wlan0 down the storm stop.

> Does your card otherwise work as expected? = the card doesn't work  
> if you try to do an scan nothing appears and you can wait forever.

I can give access if you want, let me know to my personal address.

Thanks.



On 26-May-08, at 1:40 PM, Sam Leffler wrote:

> 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
>
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Received on Mon May 26 2008 - 18:55:23 UTC

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