linux-kernel - Re: [BISECTED][REGRESSION] Kernel does not boot on EeePC

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Message-ID: <20140611151916.00723f74@nial.usersys.redhat.com>
Date:	Wed, 11 Jun 2014 15:19:16 +0200
From:	Igor Mammedov <imammedo@...hat.com>
To:	Sitsofe Wheeler <sitsofe@...il.com>
Cc:	Toshi Kani <toshi.kani@...com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [BISECTED][REGRESSION] Kernel does not boot on EeePC

On Wed, 11 Jun 2014 14:05:58 +0100
Sitsofe Wheeler <sitsofe@...il.com> wrote:

> On Wed, Jun 11, 2014 at 02:48:46PM +0200, Igor Mammedov wrote:
> > On Wed, 11 Jun 2014 07:16:24 +0100
> > Sitsofe Wheeler <sitsofe@...il.com> wrote:
> > 
> > > It basically gives up just before Initializing CPU#0. The following is
> > > an approximation of the boot messages that I see on the screen (the
> > > early ones are gone before I can eyeball them so this is a blend of a
> > > previous dmesg and what I see on the screen during a failure):
> > Thanks for answer,
> > 
> > I've overlooked nonsmp case when testing where no one sets
> > cpu_callout_mask for boot CPU and as result kernel hangs in cpu_init()
> 
> What gave you the tip off?
Just that you were booting on 1 core CPU with custom config,
then the only place where it could hang would be cpu_init().

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