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RE: [Xen-users] SuperMicro IPMI + Nehalem CPU

To: "Peter Braun" <xenware@xxxxxxxxx>, "Xen List" <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] SuperMicro IPMI + Nehalem CPU
From: "Robert Dunkley" <Robert@xxxxxxxxx>
Date: Wed, 21 Oct 2009 08:34:28 +0100
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Thread-topic: [Xen-users] SuperMicro IPMI + Nehalem CPU
Hi Peter,

I would check that the Baud rate in your Bios, IPMI Firmware (May be
applicable if you are using Ipmiutil or IPMITool) and grub.conf all
match. I have seen this sort of issue in cases where they don't.

I'm afraid I have no idea about the Unixbench prob.


-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Peter Braun
Sent: 21 October 2009 08:29
To: Xen List
Subject: [Xen-users] SuperMicro IPMI + Nehalem CPU


I just installed Debian 5.0 64bit + Xen 3.4.1 from sources + 2.6.31
aka Susexenified kernel on
new SuperMicro server with single Nehalem Xeon E5520.

2.6.31 kernel is working w/o problem, even onboard Intel gigabit NICs
are ok with igb driver compiled in.


1) when booted to xen kernel I can't access console over IPMI "remote
    I can see console but cannot type anything
    I tried console=vga, console=tty0, console=hvc, console=xvc in
dom0 grub config but nothing works

2) unixbench
    When I run unixbench tool on pure debian kernel 2.6.26 the final
score on single CPU E5520 is around 830 points
    When I run same tool on xen dom0 with 2.6.31 kernel than the score
is aroun 370 points only
    I was suspecting hypethreading but disabling it in bios doesnt
make big difference.

Any help greatly appreciated.


Peter Braun

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