storm of stray interrupts

[John Baldwin]

On Wednesday 11 February 2004 04:04 pm, Petr Holub wrote:
> > Wrong, his BIOS just sucks and doesn't provide info on how to route
> > drm0's interrupt when using ACPI.  drm0 is routed to IRQ 16, but we end
> > up using the ATPIC interrupt 11 to try and route it instead due to his
> > broken BIOS.  Since PCI interrupts are level triggered, this means that
> > as soon as drm0 interrupts, it storms on IRQ 16 since drm0's ISR never
> > gets called.
>
> OK---thanks. I've disabled ACPI (since disabling APIC results in loss of
> SMP) and it works fine (except for no virtual hyperthreaded processors).
> BTW: would it be possible to make drm use IRQ 16 by hinting (e.g. in
> device.hints)?

Not currently, no.  If you have HTT enabled in your BIOS, you can use the 
MPTABLE_FORCE_HTT kernel option to get your virtual processors back.

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org