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

[Christophe Saout <christophe@xxxxxxxx>]

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.

So I guess we need a better lead.  Would start debugging myself, but I
don't have time...

Cheers,
        Christophe



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