linux-kernel - [v3.11][3.12][Regression] ACPI / processor: Use common hotplug infrastructure

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Date:	Fri, 15 Nov 2013 12:44:11 -0500
From:	Joseph Salisbury <joseph.salisbury@...onical.com>
To:	rafael.j.wysocki@...el.com
CC:	lenb@...nel.org, linux-acpi@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: [v3.11][3.12][Regression]  ACPI / processor: Use common hotplug infrastructure

Hi Rafael,

A kernel bug affecting several users was opened against Ubuntu[0]. 
After a bisect, it was found the following commit introduced the regression:

commit ac212b6980d8d5eda705864fc5a8ecddc6d6eacc
Author: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Date: Fri May 3 00:26:22 2013 +0200

    ACPI / processor: Use common hotplug infrastructure

The regression was introduced as of v3.11-rc1.

This commit doesn't revert cleanly in 3.12, and requires the revert of
other commits as well.  I wanted to get your feedback since you are the
author.

Thanks,

Joe

http://pad.lv/1237336
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