Re: [PATCH v3] powerpc: Fix PTE page address mismatch in pgtable ctor/dtor
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: 2013-12-15 13:17:55
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linux-rt-users
* 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