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SubjectRE: 2.6.25-current-git hangs on boot unless CONFIG_CPU_IDLE=n-Apple
Date
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>-----Original Message-----
>From: Carlos R. Mafra [mailto:crmafra2@gmail.com]
>Sent: Friday, April 04, 2008 8:52 AM
>To: Pallipadi, Venkatesh
>Cc: Ray Lee; Rafael J. Wysocki; Linux Kernel Mailing List;
>Pallipadi@ogre.sisk.pl; Soeren Sonnenburg
>Subject: Re: 2.6.25-current-git hangs on boot unless
>CONFIG_CPU_IDLE=n-Apple
>
>On Fri 4.Apr'08 at 7:25:34 -0700, Pallipadi, Venkatesh wrote:
>>
>>
>> >-----Original Message-----
>> >From: linux-kernel-owner@vger.kernel.org
>> >[mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of
>> >Carlos R. Mafra
>> >Sent: Friday, April 04, 2008 4:48 AM
>> >To: Ray Lee
>> >Cc: Pallipadi, Venkatesh; Rafael J. Wysocki; Linux Kernel
>> >Mailing List; Pallipadi@ogre.sisk.pl; Soeren Sonnenburg
>> >Subject: Re: 2.6.25-current-git hangs on boot unless
>> >CONFIG_CPU_IDLE=n -Apple
>> >
>> >On Thu 3.Apr'08 at 20:15:02 -0700, Ray Lee wrote:
>> >> On Thu, Apr 3, 2008 at 6:10 PM, Carlos R. Mafra
>> ><crmafra2@gmail.com> wrote:
>> >> > On Thu 3.Apr'08 at 17:14:22 -0700, Pallipadi, Venkatesh wrote:
>> >> > > >The following report is on the current list of known
>> >regressions
>> >> > > >from 2.6.24. Please verify if the issue is still
>> >present in the
>> >> > > >mainline.
>> >> > > >
>> >> > > >
>> >> > > >Bug-Entry :
>http://bugzilla.kernel.org/show_bug.cgi?id=10093
>> >> > > >Subject : 2.6.25-current-git hangs on boot
>> >> > > >unless CONFIG_CPU_IDLE=n - Apple
>> >> > > >Submitter : Soeren Sonnenburg <kernel@nn7.de>
>> >> > > >Date : 2008-02-23 18:55 (41 days old)
>> >> > > >References : http://lkml.org/lkml/2008/2/23/263
>> >> > > >
>> >> > > >http://marc.info/?l=linux-acpi&amp;m=120387537018467&amp;w=4
>> >> > > >Handled-By : Pallipadi, Venkatesh
>> ><venkatesh.pallipadi@intel.com>
>> >> > > >
>> >> > >
>> >> > > Last comment I saw from Soeren says it does not really
>> >hang. It waits
>> >> > > for 5-10 seconds sometimes before continuing. We are
>> >still trying to
>> >> > > narrow this down with max_cstate etc..
>> >> >
>> >> > I should say that my laptop (Vaio) _hangs_ at boot (less
>> >than 10% of boots)
>> >> > and this is the last message I see:
>> >> >
>> >> > "ACPI: Processor [CPU1] (supports 8 throttling states)"
>> >> >
>> >> > and it stays there "forever" (more than 1 or 2 minutes
>at least).
>> >> >
>> >> > I am not using my laptop too much these days, and I
>thought this
>> >> > bug had been solved because it didn't hang for the
>last week (but
>> >> > I boot it once per day), however it hang last night (using some
>> >> > post 2.6.25-rc7 kernel)
>> >> >
>> >> > I have pictures of the screen while showing this last
>> >message at boot,
>> >> > should I post it somewhere or that is not necessary?.
>> >>
>> >> If the sysrq key still works when that happens, try to do
>a sysrq-t,
>> >> s, b to generate a trace, sync the filesystem, and reboot.
>> >If anything
>> >> made it to the logs, please post it.
>> >
>> >Sysrq keys don't work when it hangs, I have to push the
>power button.
>> >
>> >Another thing to notice is that when it happens, it usually happens
>> >more times in a row (like 3 times). And then it can take
>many boots to
>> >happen again.
>> >
>> >I've uploaded the picture where it hangs, it is in the very
>beginning
>> >of the boot process:
>> >
>> >http://www.ift.unesp.br/users/crmafra/dsc04673.jpg
>>
>>
>> Can you try the latest git and see whether this still is a problem?
>
>I've just updated to latest git, but it may take some time for it
>to happen again (the first 3 boots were okay). Last time it happened
>with 2.6.25-rc7-00149-gaf8be4e (I checked now).
>
>Do you have reasons to believe this issue was fixed since then?

Yes. I think the patch here should have fixed the problem....
Patch : http://marc.info/?l=linux-kernel&m=120674502201007&w=4

Thanks,
Venki

>


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