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SubjectRe: [PATCH 2/2] PCI: Only enable realloc auto when root bus has 64bit mmio
On 12/09/2013 03:10 PM, Yinghai Lu wrote:
> On Mon, Dec 9, 2013 at 11:42 AM, Bjorn Helgaas <> wrote:
>> That doesn't answer my question at all.
>> I understand that this change makes it so Joseph doesn't have to use
>> "pci=realloc=off". But why should auto-reallocation be limited to
>> buses that have resources above 4GB? That doesn't make any sense.
>> We should fix the reallocation code so it can deal with this case. If
>> there's not enough space for everything, obviously we have to leave
>> something unassigned. A ROM BAR is a good candidate for leaving
>> unassigned, because most of the time we can get along without it.
> Yes, that is ideal and not that simple.
> but that would be hard to backport to old kernels.
> BTW, Joseph, can you try
> git://
> for-pci-3.14
> with pci=realloc=on
> on that system?
> Thanks
> Yinghai
I noticed there was some back and forth on this thread. Do you still
want me to test this version, Yinghai?

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