Re: Re[2]: [Xen-users] Problem initializing dual-core Opteron

["John Hannfield" <hal9020@xxxxxxxxx>]

OK thanks Sergey, everyone.
I am doing a new kernel dom0 compile now, with smp enabled and
and with&without CONFIG_PREEMPT_BKL.

I do use 32bit debian sarge as my dom0. I could try 64bit debian-amd64
but would like to get 32bit working.

On 11/7/06, Sergey Bondari < bondari@xxxxxxx> wrote:

Dear John,

Tuesday, November 7, 2006, 2:38:11 PM, you wrote:

Do not overcomplicate this stuff around compiling xen0 kernel.

Just run make linux-2.6-xen0-config in your xen source folder and
choose subarch type XEN, cpu type Opteron and co. Then choose SMP, try
playing with big kernel lock (with and without). Do not choose HT at
processor setup (its only intel, do not mix it with AMD hypertransport)

Than choose carefully your HW (compile it in, do not use modules so
you don't need to play with ramdisks). Do not choose any chips you
dont have in your HW. Good luck ;)


JH> I switched the BIOS from APIC to PIC, and added 'nolapic nosmp' to the
JH> kernel
JH> line and now it boots OK. However I would like to use smp support to get my
JH> dual
JH> core's working.

JH> I will try again a custom kernel dom0 build.
JH> I notice when doing a custom build, xen patches the kernel to
JH> offer a "Subarchitecture Type" set to default 'Xen Compatible'. I can
JH> imagine you
JH> would use this setting for domU kernel, but for dom0 should it not be set
JH> to PC Compatible and family set to Opteron?

JH> Eg:

JH> Subarchitecture Type (PC-compatible)
JH> Processor family (Opteron/Athlon64/Hammer/K8)  --->

JH> Thanks
JH> John



--
Best regards,
Sergey


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-- 

John

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