linux-kernel - Re: PCI Failed to allocate mem for PCI ROM

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Message-ID: <20080111175039.GB7916@kroah.com>
Date:	Fri, 11 Jan 2008 09:50:39 -0800
From:	Greg KH <greg@...ah.com>
To:	Kumar Gala <galak@...nel.crashing.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	linuxppc-dev list <linuxppc-dev@...abs.org>,
	linux-pci@...ey.karlin.mff.cuni.cz
Subject: Re: PCI Failed to allocate mem for PCI ROM

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@...00000 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" :)

thanks,

greg k-h
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