Date: Fri, 17 Jul 2009 15:37:42 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Tj Hariharan <tj.physicist@gmail.com>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
       Thomas Gleixner <tglx@linutronix.de>
Subject: Re: kernel stuck at trying to change CPU resolution.
Message-Id: <20090717153742.d9144d91.akpm@linux-foundation.org>
In-Reply-To: <20090626111652.GA7244@TjsLaptop>
References: <20090626111652.GA7244@TjsLaptop>
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On Fri, 26 Jun 2009 07:16:53 -0400
Tj Hariharan <tj.physicist@gmail.com> wrote:

> 
> Hi, I have a Pentium-M 1.86GHZ processor Laptop. Standard DELL Latitude
> D610. I ran the 2.6.31-rc1 kernel (updated tree as of 10 minutes ago).
> The kernel gets stuck at the message saying "Switching to High
> resolution mode on CPU0" after about 10 minutes it goes to the next
> step, but then continues to get stuck. There is no log, as presumable
> this is happening before the kernel fully initialises the harddrive and
> passes control to user mode. I am running a non modular kernel with no
> major changes made to my configuration since 2.6.27. I have never had
> any issues thus far. Since I am using a laptop I am unable to access the
> sysrq key (which in my case is not prnt screen, but Fn+PrintScreen, and
> Fn key is not read by kernel at all, even after full boot and under
> normal conditions). Thank you for your time. I have also attached my
> config file. 
> 

Thanks for the report.

Is this regression still present in 2.6.31-rc3 or later?

If so, do you know if the bug was present in 2.6.30/29/28?
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