Re: Re: Re: 2.6.19-rc5: known regressions :SMP kernel can not generate ISA irq

From: Komuro
Date: Fri Nov 10 2006 - 07:43:11 EST


Hi,

>> Intel ISA PCIC probe:
>> Intel i82365sl B step ISA-to-PCMCIA at port 0x3e0 ofs 0x00, 2 sockets
>> host opts [0]: none
>> host opts [1]: none
>> ISA irqs (scanned) = 3,4,5,7,9,11,15 status change on irq 15
>
>This definitely means that the IRQ subsystem works, at least here. That
>"scanned" means that the PCMCIA driver actually tested those interrupts,
>and they worked.
>
>At that point, at least.
>
>Of course, the "they worked" test is fairly simple, so it's by no means
>foolproof, but in general, it does sound like it all really should be ok.
>
>
>But testing 2.6.19-rc5 is still worth it. The APIC fixes might fix it, or
>some other changes might.
>
> Linus

I tried the 2.6.19-rc5, the problem still happens.

But,
I remove the disable_irq_nosync() , enable_irq()
from the linux/drivers/net/pcmcia/axnet_cs.c
the interrupt is generated properly.

So I think enable_irq does not enable the irq.

Thanks!

Best Regards
Komuro



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