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Subject: Re: Resource assignment oddities
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Gavin Shan <shangw@linux.vnet.ibm.com>
Cc: Yinghai Lu <yinghai@kernel.org>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	Bjorn Helgaas <bhelgaas@google.com>
Date: Mon, 06 May 2013 20:48:31 +1000
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On Mon, 2013-05-06 at 18:31 +0800, Gavin Shan wrote:
> The possible (temporary) fix would be checking "local_fail_head" in function
> __assign_resources_sorted() and don't do reassignment if all the element in
> the list is IO related. In the future, we might introduce specific flag to
> indicate the PCI host can't support IO and skip all IO assignment accordingly.

Yinghai, what's the best we can do for 3.10 ? This kernel will go to enterprise
distros I'm told and that's a pretty nasty problem for some of our machines
that don't do IO.

Cheers,
Ben.