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

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Message-ID: <5394A260.8000900@zytor.com>
Date:	Sun, 08 Jun 2014 10:50:24 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Ingo Molnar <mingo@...nel.org>,
	Sitsofe Wheeler <sitsofe@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	Igor Mammedov <imammedo@...hat.com>,
	Toshi Kani <toshi.kani@...com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [BISECTED][REGRESSION] Kernel does not boot on EeePC

On 06/08/2014 02:45 AM, Ingo Molnar wrote:
> 
> * Sitsofe Wheeler <sitsofe@...il.com> wrote:
> 
>> Hi,
>>
>> The latest kernel (c593e8978722f7f4a12932733cfeed6c0c74fbaa) refuses to
>> boot on my EeePC - after grub is finished the screen just remains black
>> and the only thing that does something is pressing the power button. The
>> problem commit seems to be:
>>
>> commit 3e1a878b7ccdb31da6d9d2b855c72ad87afeba3f
>> Author: Igor Mammedov <imammedo@...hat.com>
>> Date:   Thu Jun 5 15:42:45 2014 +0200
>>
>>     x86/smpboot: Initialize secondary CPU only if master CPU will wait for it
> 
> Argh, and have read this just a minute after expressing my hope that 
> the hotplug fix is correct :-/
> 
> Linus, please revert commit 3e1a878b7ccdb.
> 
>   Acked-by: Ingo Molnar <mingo@...nel.org>
> 

I really want to say *THANK YOU* to Sitsofe for a very timely and
complete report.  You really saved us some highly valuable time.

	-hpa


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