From: "Yinghai Lu" <yhlu.kernel@gmail.com>
To: "H. Peter Anvin" <hpa@zytor.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
"Andi Kleen" <ak@suse.de>
Cc: "Christoph Lameter" <clameter@sgi.com>,
"Ingo Molnar" <mingo@elte.hu>,
linux-kernel@vger.kernel.org
Subject: Re: system without RAM on node0 boot fail
Date: Wed, 30 Jan 2008 23:06:53 -0800 [thread overview]
Message-ID: <86802c440801302306g2a1ae11h52b883eed79b7e96@mail.gmail.com> (raw)
In-Reply-To: <47A16616.9070606@zytor.com>
On Jan 30, 2008 10:09 PM, H. Peter Anvin <hpa@zytor.com> wrote:
> Christoph Lameter wrote:
> > x86 supports booting from a node without RAM?
it is a two sockets system. only 4G RAM installed on node1.
>
> From the looks of it I would say he probably has the boot node numbered 1.
>
> The e820 map is also "interesting" - doesn't list the first 256 bytes,
> which corresponds to the first quarter(!) of the real-mode exception table.
i kexec that from 2.6.24 (with discontinuous and slab)
so that e820 is passed by kexec from first kernel. normal pxeboot will
have start for 0.
YH
next prev parent reply other threads:[~2008-01-31 7:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-31 4:26 Yinghai Lu
2008-01-31 5:02 ` Yinghai Lu
2008-01-31 4:51 ` Christoph Lameter
2008-01-31 6:09 ` H. Peter Anvin
2008-01-31 7:06 ` Yinghai Lu [this message]
2008-01-31 7:22 ` H. Peter Anvin
2008-01-31 7:39 ` Andi Kleen
2008-02-01 18:11 ` dean gaudet
2008-02-01 19:15 ` Yinghai Lu
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