Messages in this thread | | | From | YhLu <> | Subject | RE: X86_64 kernel support MAX memory. | Date | Tue, 15 Feb 2005 10:49:05 -0800 |
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I got a system with 8 way Opteron. Every CPU has 16G memory.
2.6 kernel x86_64, it will crash when it start the Fifth node.
YH
> -----Original Message----- > From: Andi Kleen [mailto:ak@muc.de] > Sent: Tuesday, February 15, 2005 4:08 AM > To: YhLu > Cc: linux-kernel@vger.kernel.org > Subject: Re: X86_64 kernel support MAX memory. > > On Mon, Feb 14, 2005 at 07:32:42PM -0800, YhLu wrote: > > Andi, > > > > How much is max RAM 2.6.11 x86_64 support on AMD64? > > 64G or 128G? > > 46bits in theory (64TB), however current CPUs only support > upto 40bits (AMD) or 36bits (Intel). There is some other > code that is also limited to 40bits right now like AGP or > IOMMU or MTRR, that is all due to hardware limitations. > > -Andi > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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