Re: [Xen-devel] pv_ops dom0 kernel failure with ata_piix / irq problems

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Sun, Jan 25, 2009 at 12:10:27AM +0100, Christophe Saout wrote:
> Hi Pasi,
> 
> > ata_port_alloc: ENTER
> > __ata_port_freeze: ata4294967295 port frozen
> >
> > I guess I have to start reading the source to figure out why the port is
> > 'frozen'.. 
> 
> Just checked.  It is frozen after a bad error that put the port into a
> bad state (in order to avoid corruption or any sort of mess I guess).
> It is unfrozen after a successful reset.
> 
> The code initially freezes a port before probing.  That's why it doesn't
> even have an id assigned (hence -1 or 4294967295 if you interpret is as
> unsigned).  Haven't checked, but this message should also appear if
> everything works as it should.  It starts the probing only after that
> message.
>

Yeah, I also just figured this out :) 
 
> So I guess we need a better lead.  Would start debugging myself, but I
> don't have time...
> 

Failing function is devm_request_irq() in ata_pci_sff_activate_host() 
at least for me with ata_piix.. 

-- Pasi

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