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Date:	Sat, 14 Jan 2012 05:09:50 -0200
From:	Rogério Brito <>
To:	Yinghai Lu <>
Cc:	Linus Torvalds <>,
	Jesse Barnes <>,
	Ivan Kokshaysky <>,
	Edward Donovan <>,
	Thomas Gleixner <>,
	Bjorn Helgaas <>,,
	Márcia Coutinho de Brito <>,
	Ram Pai <>
Subject: Re: [Bug 41722] Clevo M5X0JE hangs in ACPI init

Dear Yinghai and other people,

On Sat, Jan 14, 2012 at 00:01, Rogério Brito <> wrote:
> On Fri, Jan 13, 2012 at 15:29, Yinghai Lu <> wrote:
>> On Fri, Jan 13, 2012 at 3:59 AM, Rogério Brito <> wrote:
>>> If it applies (and newer kernels don't have things which your patch needs),
>>> I will keep working with Linus's v3.2 tag.
>> No problem, I will put that patch into for-pci2 for your conveniences.
> Thanks. That's definitely easier for me. I'm grabbing it to compile
> and will report in a moment.

Just to clarify, my "definitely easier for me" means "I know what to
do (or, at least, I'm closer this way not doing wrong things)".

>>> When I compiled from your branch for-pci2 from linux-yinghai.git (without
>>> any extra patches), it *did* boot, but noticed one thing weird: using htop
>>> and in single user mode, it reported 100% of CPU in use. With regular top, a
>>> more fine grained output revealed that no processes were using the CPU, but
>>> that almost all of the time was spent in kernel mode.
>>> Anyway, as you asked, I put the log of what I see at
>> [    0.165615] pci 0000:05:07.0: CardBus bridge to [bus 06-09]
>> [    0.165682] pci 0000:05:07.0:   bridge window [io  0x0001-0x0000]
>> [    0.165751] pci 0000:05:07.0:   bridge window [io  0x0001-0x0000]
>> [    0.165821] pci 0000:05:07.0:   bridge window [mem
>> 0x00000001-0x00000000 pref]
>> [    0.165904] pci 0000:05:07.0:   bridge window [mem 0x00000001-0x00000000]
>> [    0.165975] pci 0000:00:10.0: PCI bridge to [bus 05-06]
>> [    0.166043] pci 0000:00:10.0:   bridge window [mem 0xb3200000-0xb32fffff]
>> [    0.166259] pci 0000:00:10.0: setting latency timer to 64
>> [    0.166329] pci 0000:05:07.0: device not available (can't reserve
>> [io  0x0001-0x0000])
>> [    0.166412] pci 0000:05:07.0: Error enabling bridge (-22), continuing
>> We have some problems with handling cardbus bridge as optional resources.
>> will produce some patches and update for-pci2 branch for your test.
> OK. Will try that as soon as my download completes.

Just for the record, I have grabbed your for-pci2 branch with HEAD
being 5db4211 and this is what I get:

A warning, though is that there were some options regarding PCI buses
which I did not know exactly how to answer. I can post my config here
if you are interested in that. Well, actually, I can give you ssh
access to this notebook if you want to hack on it. Just let me know
what times you (or anyone else) are online and I will try to arrange

Any guidance is welcome.


Rogério Brito :,} : GPG key 4096R/BCFCAAAA : Packages for LaTeX :
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