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Message-ID: <20080409084909.GE19010@one.firstfloor.org> Date: Wed, 9 Apr 2008 10:49:09 +0200 From: Andi Kleen <andi@...stfloor.org> To: Matti Aarnio <matti.aarnio@...iler.org> Cc: Zhao Forrest <forrest.zhao@...il.com>, Andi Kleen <andi@...stfloor.org>, discuss@...-64.org, linux-kernel@...r.kernel.org, yhlu.kernel@...il.com, mingo@...e.hu, ak@...e.de Subject: Re: Does Linux have plan to support memory hole remapping? > I second that. On my home machine I have early ASUS AMD x64 board from > a few years ago. For it I did buy CPU with this memory mapping hardware > inside, but the BIOS did not support it correctly until a year or two latter, > thus I was not able to use all of 4 GB of memory I had installed there. To be fair the low-end boards often state in their documentation that they only got tested with upto 2GB. So strictly you were out of spec if you plug in 4GB. > Looks like BIOS-writers don't really have test environments for extreme > far edges of system configurations - "yes, we support --> sales $$$". > And once product ships, rare extreme users rarely report anything back. It depends on how much you pay. Higher end boards tend to get tested in higher end configurations. Low end boards not. -Andi -- 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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