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Re: [PATCH] Fake NUMA emulation for PowerPC

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From: Arnd Bergmann <arnd@...>
To: <linuxppc-dev@...>
Cc: Balbir Singh <balbir@...>, LKML <linux-kernel@...>
Subject: Re: [PATCH] Fake NUMA emulation for PowerPC
Date: Friday, December 7, 2007 - 6:01 pm

On Friday 07 December 2007, Balbir Singh wrote:

Excellent idea! I'd love to have this in RHEL5u1, because that would make
that distro boot on certain machines that have more memory than is supported
without an iommu driver. The problem we have is that when you simply
say mem=1G but all of the first gigabyte is on the first node, you end
up with a memoryless node, which is not supported.

Unfortunately, it comes too late for me now, as all new distros already boot
on Cell machines that need an IOMMU.

	Arnd <><
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Messages in current thread:
[PATCH] Fake NUMA emulation for PowerPC, Balbir Singh, (Fri Dec 7, 5:14 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Nathan Lynch, (Fri Dec 7, 6:11 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Balbir Singh, (Fri Dec 7, 6:26 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, David Rientjes, (Fri Dec 7, 7:11 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Balbir Singh, (Sat Dec 8, 12:32 am)
Re: [PATCH] Fake NUMA emulation for PowerPC, David Rientjes, (Sat Dec 8, 12:45 am)
Re: [PATCH] Fake NUMA emulation for PowerPC, Arnd Bergmann, (Fri Dec 7, 6:01 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Balbir Singh, (Fri Dec 7, 6:22 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Geert Uytterhoeven, (Fri Dec 7, 5:30 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Dave Quigley, (Fri Dec 7, 5:33 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Balbir Singh, (Fri Dec 7, 5:35 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Balbir Singh, (Fri Dec 7, 5:43 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Arnd Bergmann, (Fri Dec 7, 5:58 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Balbir Singh, (Fri Dec 7, 6:03 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Olof Johansson, (Fri Dec 7, 5:28 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, David Rientjes, (Fri Dec 7, 7:06 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Balbir Singh, (Fri Dec 7, 5:35 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Kumar Gala, (Fri Dec 7, 5:55 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Balbir Singh, (Fri Dec 7, 6:12 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, David Rientjes, (Fri Dec 7, 7:10 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Balbir Singh, (Sat Dec 8, 12:22 am)
Re: [PATCH] Fake NUMA emulation for PowerPC, Pavel Machek, (Sun Dec 9, 9:16 am)
Re: [PATCH] Fake NUMA emulation for PowerPC, Balbir Singh, (Sun Dec 9, 9:20 am)
Re: [PATCH] Fake NUMA emulation for PowerPC, Kumar Gala, (Fri Dec 7, 6:15 pm)
Re: [PATCH] Fake NUMA emulation for PowerPC, Balbir Singh, (Fri Dec 7, 6:18 pm)