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DateThu, 3 Apr 2008 20:15:02 -0700
From"Ray Lee" <>
SubjectRe: 2.6.25-current-git hangs on boot unless CONFIG_CPU_IDLE=n - Apple
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.


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