[Avila] irq27: nobody cared

David Acker dacker at roinet.com
Thu Oct 19 17:07:19 EDT 2006


David Acker wrote:
> Hello!
> We are using an atheros based card with a recent madwifi driver 
> integrated with the gateworks devkit for a gw2348-4 board.  After a 
> reasonable amount of traffic we get the following error:
> irq27: nobody cared
> 
> It is followed by a stack dump.  irq27 is assigned to wifi0, the madwifi 
> driver running an atheros radio.
> 
> I have seen some mentions of this issue on the net, but no one seems 
> have come to a conclusion.  Does anybody have an ideas about this issue?
> -Ack

This also happens with USB.  If I plug in a USB stick and move a file 
over into temp (tmpfs), I will get the same error but for irq 28 where 
the USB controller lives.  I also get the following:

Badness in dma_free_coherent at arch/arm/mm/consistent.c:332
This indicates a dma_free call while interrupts were disabled through 
the following line:
WARN_ON(irqs_disabled());

This is starting to sound like an an arm big endian or ixp4xx linux issue.

-Ack





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