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Date: Tue, 8 Aug 2006 11:08:55 +0900 From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> To: kmannth@...ibm.com Cc: akpm@...l.org, discuss@...-64.org, ak@...e.de, linux-kernel@...r.kernel.org, lhms-devel@...ts.sourceforge.net Subject: Re: [Lhms-devel] [PATCH 1/10] hot-add-mem x86_64: acpi motherboard fix On Mon, 07 Aug 2006 17:56:56 -0700 keith mannthey <kmannth@...ibm.com> wrote: > I know of no x86_64 hardware the supports empty node hot-add memory. If > it exists I would recommend using SPARSEMEM based hot-add. On HW I am > aware of there is always some memory present in a node at boot. > > O.K one more. I know x86_64 has ZONE_DMA32. A system boot with only memory below 4G has no avilable memory in ZONE_NORMAL. If a new memory above 4G is added, ZONE_NORMAL comes as *new* zone. ZONE_NORMAL is empty at boot, so it's not in zonelist at boot. is this not problem ? -Kame - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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