Interrupt storm

[Antoine Brodin]

John Baldwin <jhb at FreeBSD.org> wrote:
> Ok, I see the issue now.  The problem is that the BIOS sets the IRQ registers 
> in the PCI devices to values that don't match how the links are programmed 
> and we tend to trust the BIOS over the links in those cases.  Can you tell me 
> what IRQ sk0 gets if you don't use ACPI?  Does it get 5 or 9?  If it gets 9, 
> does it work ok?
> 
> You can try this patch for ACPI.  Unfortunately, some BIOSes lie when you ask 
> a link which IRQ it is routed to, so I'm not sure if this patch can be 
> committed as is.  Nate, do you know if such BIOSen only return no IRQ at all 
> (0 or 255) when they lie rather than a bogus "valid" IRQ?

Without ACPI, sk0 gets irq 5 and it works ok.

With your patch and ACPI, sk0 no longer timeouts, and it's usable.
But I still have interrupt storms.
dmesg: http://bsd.miki.eu.org/~antoine/current+acpi+patch.dmesg

Antoine