linux-kernel - Re: Regression: Fixing recursive fault but reboot is needed at boot on HP 6730B

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Date:	Sun, 17 Mar 2013 09:32:31 +0100
From:	Roberto Oppedisano <roberto.oppedisano@...racom.it>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	LKML <linux-kernel@...r.kernel.org>,
	"toshi.kani@...com" <toshi.kani@...com>,
	"isimatu.yasuaki@...fujitsu.com" <isimatu.yasuaki@...fujitsu.com>,
	"yinghai@...nel.org" <yinghai@...nel.org>
Subject: Re: Regression: Fixing recursive fault but reboot is needed at boot
 on HP 6730B - bisected

Il 17/03/2013 01:59, Rafael J. Wysocki ha scritto:
> On Saturday, March 16, 2013 08:10:11 AM Roberto Oppedisano wrote:
>> Il 15/03/2013 18:13, Rafael J. Wysocki ha scritto:
>>>> Here's the new suspect:
>>>>
>>>> f95988de06ea62ef5bd861f06e9ef56cea405ed1 is the first bad commit
>>>> commit f95988de06ea62ef5bd861f06e9ef56cea405ed1
>>>> Author: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>>>> Date:   Mon Jan 7 21:17:02 2013 +0100
>>>>
>>>>        ACPI / scan: Treat power resources in a special way
>>> In that case, please try to comment out the following two lines:
>>>
>>> 	device_set_wakeup_capable(dev, true);
>>> 	acpi_pci_sleep_wake(pci_dev, false);
>>>
>>> in pci_acpi_setup() in drivers/pci/pci-acpi.c and see if that improves things
>>> for you.
>> Current git still hangs with those two lines commented out.
> What about commenting out the entire contents of pci_acpi_setup(), then?

Still no luck, still hangs at boot.

> Also, please send the output of acpidump from the affected machine.

You can find acpidump and dmesg at:

http://62.196.71.254/kernel/acpidump.gz
http://62.196.71.254/kernel/dmesg.txt.gz

I noticed that booting with serial console enabled succeeds also with 
failing kernels;
I've to do more testing to see if it's a 100% success ratio.

dmesg is relative to vanilla current git kernel, booted without docking 
station and with serial
console enabled. Inside it you can find some acpi related error; I don't 
know if they're relevant.

Kind regards
R

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