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Date: Sun, 15 Dec 2013 13:59:33 +0100
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: "Hong H. Pham" <hong.pham@windriver.com>
Subject: Re: [PATCH v3] powerpc: Fix PTE page address mismatch in pgtable
 ctor/dtor
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* Hong H. Pham | 2013-12-07 09:06:33 [-0500]:

>On PPC32, only SMP kernels are affected.
>
>On PPC64, only SMP kernels with 4K page size are affected.

$ uname -a
Linux mpc8536-1 3.12.1-rt3-00281-g9de268d #76 SMP PREEMPT RT Fri Nov 22 16:53:05 CET 2013 ppc GNU/Linux
$ uptime
 22:01:10 up 22 days, 21:01,  1 user,  load average: 443.08, 563.59, 586.20

This is from a mpc8536 box. The high load comes from a hackbench that was
running for quite some time. Are Book-E (CONFIG_PPC_BOOK3E_MMU without
CONFIG_PPC_BOOK3E set) not affected or is this bug not present if a SMP
kernel is booted on a UP machine?

Sebastian