PCI Failed to allocate mem for PCI ROM

Kumar Gala galak at kernel.crashing.org
Sat Jan 12 07:27:16 EST 2008


On Jan 11, 2008, at 11:50 AM, Greg KH wrote:

> On Fri, Jan 11, 2008 at 02:29:28AM -0600, Kumar Gala wrote:
>> Greg,
>>
>> I'm getting the following message from the kernel on an embedded  
>> ppc32
>> system:
>>
>> PCI: Failed to allocate mem resource #9:100000 at e0000000 for  
>> 0000:00:00.0
>>
>> The HW setup is a PCIe host controller and an e1000 NIC card.  It  
>> appears
>> that pci_bus_assign_resources() is trying to call  
>> pci_assign_resource() for
>> the ROM and the resource for the ROM is [100000:1fffff] where the  
>> PHB is
>> [c0000000:dfffffff].
>>
>> It seems like the resno that pci_assign_resource is getting called  
>> with is
>> wrong and thus pci_update_resource() doesn't get called.
>>
>> any ideas?
>
> Nope, sorry, any help debugging this is appreciated, pci resource
> allocation is "tricky" :)

I'm happy to debug, is the fact that the resno == 9 ok or does that  
seem wrong?

- k



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