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Date:	Wed, 7 Jul 2010 14:28:47 +1000
From:	Andrew Hendry <>
To:	Yinghai Lu <>
Cc:	Linus Torvalds <>,
	Jesse Barnes <>,
	Ram Pai <>,,,
Subject: Re: [RFC PATCH 1/1] PCI: skip release and reallocation of io port 

Is this the same or related issue?
New messages since -rc4, X and graphics really slow after.

[    1.387013] swapper:1 freeing invalid memtype bf788000-bf789000
[    1.387409] swapper:1 freeing invalid memtype bf789000-bf78a000
[    5.999675] modprobe:548 freeing invalid memtype d0000000-d0040000
[    6.068347] modprobe:548 freeing invalid memtype d0140000-d0150000
[    6.068647] modprobe:548 freeing invalid memtype d0150000-d0160000
[    6.069661] modprobe:548 freeing invalid memtype d0170000-d01f0000
[    6.085969] modprobe:548 freeing invalid memtype d01f0000-d0200000
[    6.087673] modprobe:548 freeing invalid memtype d0210000-d0220000
[    6.087900] modprobe:548 freeing invalid memtype d0220000-d0230000
[    6.088092] modprobe:548 freeing invalid memtype d0230000-d0240000
[    6.088317] modprobe:548 freeing invalid memtype d0240000-d0250000

On Wed, Jul 7, 2010 at 10:49 AM, Yinghai Lu <> wrote:
> On 07/06/2010 04:58 PM, Linus Torvalds wrote:
>> On Tue, Jul 6, 2010 at 4:13 PM, Yinghai Lu <> wrote:
>>> So you want to use pci=override_bios to reallocate all bios assigned resource include
>>> peer root buses resources and pci bridge resource and pci devices BAR?
>> In a perfect world, we'd never need this at all, but sicne that's not
>> an option, the second-best alternative might be something like the
>> following:
>>   pci=override=off # default
>>   pci=override=conflict # override only on conflicts
>>   pci=override=<device> # clear BIOS allocations for <device> (and any
>> children, if it's a bus)
> current:
> if there is conflict, like pci bridge resources or pci devices resources is not in the scope of peer root bus resource range.
> or pci devices is not in pci bridge resources range.
> kernel would reject the resource and try to get new range in parent resource for the children.
> so current default is overriding the conflicts already.
> Maybe your conflicts have other meaning? like pci bridge resource size is not big enough?
> or we can have use
> pci=override=small_bridge
> or
> pci=override=bridges
> instead?
> Thanks
> Yinghai
> --
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