linux-kernel - Re: [Bug 41722] Clevo M5X0JE hangs in ACPI init

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Date:	Thu, 26 Jan 2012 09:16:51 -0200
From:	Rogério Brito <rbrito@....usp.br>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	Edward Donovan <edward.donovan@...ble.net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	linux-kernel@...r.kernel.org,
	Márcia Coutinho de Brito <mcbrito@...il.com>,
	Ram Pai <linuxram@...ibm.com>, rui.zhang@...el.com
Subject: Re: [Bug 41722] Clevo M5X0JE hangs in ACPI init

On Thu, Jan 26, 2012 at 00:03, Yinghai Lu <yinghai@...nel.org> wrote:
> 2012/1/25 Rogério Brito <rbrito@....usp.br>:
>>
>> Wild thoughts: I just saw that nouveau calls some ACPI stuff to get
>> EDID information and, as ACPI is broken on this notebook, could that
>> be a potential reason for the panic that I'm seeing? (Yes, I can take
>> a photo of the screen).
>
> Which 2.6.x kernel works on your laptop without disabling acpi?

Unfortunately, no 2.6 kernel has worked on this laptop without
acpi=off. I also once booted FreeBSD here just to see how it would
behave and it also hang with ACPI enabled.

>From what I see on this notebook, if ACPI is not turned off, the
computer simply hangs once the ACPI is started (it gives one layman
like me the impression of entering an infinite loop). But, again, this
is just a layman observation of what the system appears to be doing.

> looks like we should make linux without disabling acpi work on your
> system at first.

I'm OK with whatever you people want me to do to get things right.

> BTW, can you post you .config?

Sure, it is here:

    http://www.ime.usp.br/~rbrito/linux/clevo/linux-configs/config-3.2.0-rc5-12270-g6fe13a6-yinghai

If you want me to change anything, please let me know and I'll try to
do my best.


Regards,

-- 
Rogério Brito : rbrito@...e.usp.br,gmail.com} : GPG key 4096R/BCFCAAAA
http://rb.doesntexist.org : Packages for LaTeX : algorithms.berlios.de
DebianQA: http://qa.debian.org/developer.php?login=rbrito%40ime.usp.br
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