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Re: [Xen-users] Xen on quad socket AMD Barcelona

  • To: "Dean Huffman" <dean.huffman@xxxxxxxxxxxxxxxxxxx>
  • From: "Yinghai Lu" <yhlu.kernel@xxxxxxxxx>
  • Date: Wed, 26 Sep 2007 10:09:06 -0700
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Wed, 26 Sep 2007 10:09:54 -0700
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On 9/26/07, Dean Huffman <dean.huffman@xxxxxxxxxxxxxxxxxxx> wrote:
> I've been trying to get Xen working on a quad socket Barcelona system but I
> it hangs just after the Xen hypervisor prints "Brought up 16 CPUs"
> -          The system will run standard Redhat Linux
> -          Xen will run if I only power up 2 of the 4 sockets (8 of the 16
> cores.)
> I'm still using Xen 3.0.4 but did try Xen 3.1.0 with out any luck.
> If anyone can answer the following I'd be greatfull.
> Has anyone been able to successfully bring up Xen on a quad socket AMD
> Barcelona system?

it could be BIOS problem

but xen could workaround it.

before bother your BIOS guys
at this time, you could try:
1. build latest linux kernel with kexec support.
2. use kexec to load xen etc.

./kexec -l "$XEN" --command-line="com1=9600,8n1 cdb=com1"
--module=""$VMLINUZ" ro root=LABEL=/ console=ttyS0,9600,8n1"

if it works, you need one BIOS update.

it could be the problem like


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