Machine check during PCI scan on PMac G5

[Segher Boessenkool]

>> Argh... again ! Looks like the box doesn't like us to probe the
>> PCI device that is there. Can you print out the precise devfn
>> bus number & offset where the machine check happens ?
>
> The first occurence is devfn 48, bus number 0, offset 14.

That's the "header type" field on the GEM shim.

I'd rather not have this fixed by the device-tree check, for
various reasons; note that this issue probably is related to the
"config space not readable while GEM is in sleep mode" problem
on older Macs.  Is the GEM powered on during boot, on these boxes?


Segher