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

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Date:	Tue, 10 Jan 2012 00:41:17 -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>,
	bugzilla-daemon@...zilla.kernel.org,
	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>
Subject: Re: [Bug 41722] Clevo M5X0JE hangs in ACPI init

Dear Yinghai,

On Mon, Jan 9, 2012 at 23:32, Yinghai Lu <yinghai@...nel.org> wrote:
> in pci_bus_alloc_resource(),  we already have
>
>        /* don't allocate too high if the pref mem doesn't support 64bit*/
>        if (!(res->flags & IORESOURCE_MEM_64))
>                max = PCIBIOS_MAX_MEM_32;
>
> So it should allocate to range below 4G to unassigned children devices.
>
> but need to make sure (peer) root bus does have valid resource range at first.
>
> Rogério,
>
> Do you have bootlog with "debug ignore_loglevel pci=earlydump" ?

I have posted some information to bugzilla (see [0]), but not with
pci=earlydump. It seems that bugzilla doesn't want to mail me a reset
e-mail, but while I am waiting, I posted this on my homepage (see
[1]).

Please, note that this boot log was taken with the patch that I
e-mailed earlier (i.e., the one that makes things work). If you want
me to send a log with a vanilla kernel, just let me know and I will
grab more information.


Thanks,
Rogério.

[0]: https://bugzilla.kernel.org/show_bug.cgi?id=41622
[1]: http://www.ime.usp.br/~rbrito/linux/clevo/clevo-dmesg-with-earlydump-2012-01-10.txt

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