linux-kernel - Re: Boot hangs after "Freeing initrd memory" with 2.6.31.11

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Date:	Thu, 14 Jan 2010 12:35:09 +0200
From:	Ozan Çağlayan <ozan@...dus.org.tr>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	hpa@...or.com, mingo@...e.hu, a.p.zijlstra@...llo.nl
Subject: Re: Boot hangs after "Freeing initrd memory" with 2.6.31.11

Yinghai Lu wrote On 14-01-2010 09:43:
> On 01/13/2010 10:58 PM, Ozan Çağlayan wrote:
>> Ozan Çağlayan wrote On 13-01-2010 20:51:

> 
> can you just deselect CONFIG_X86_CPU_DEBUG in your .config ?

Yes that fixed the issue. I now reenabled it and reverted the following commit which is 1/2 commits
modifying cpu_debug code between 2.6.30..2.6.31:

>From 5095f59bda6793a7b8f0856096d6893fe98e0e51 Mon Sep 17 00:00:00 2001
From: Jaswinder Singh Rajput <jaswinder@...nel.org>
Date: Fri, 5 Jun 2009 23:27:17 +0530
Subject: [PATCH] x86: cpu_debug: Remove model information to reduce encoding-decoding

Remove model information, encoding/decoding and reduce bookkeeping.

This, besides removing a lot of code and cleaning up the code, also
enables these features on many more CPUs that were enumerated before.


The other commit is (which I think is just for improving the output):


>From 97a52714658cd959a3cfa35c5b6f489859f0204b Mon Sep 17 00:00:00 2001
From: Andreas Herrmann <andreas.herrmann3@....com>
Date: Fri, 8 May 2009 18:23:50 +0200
Subject: [PATCH] x86: display extended apic registers with print_local_APIC and cpu_debug code

Both print_local_APIC (used when apic=debug kernel param is set) and
cpu_debug code missed support for some extended APIC registers that
I'd like to see.

This adds support to show:

 - extended APIC feature register
 - extended APIC control register
 - extended LVT registers

[ Impact: print more debug info ]


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