Re: [Xen-users] Problem with Intel(R) Xeon(R) CPU L5640?

[Sarah Newman <srn@xxxxxxxxx>]

On 10/18/2017 05:09 PM, admin wrote:
> Hi,
> 
> I have two servers of the same model, HP SE316M1.
> 
> The first one, running Xen 4.4, which was installed rather long time ago.
> Our backup server died (older Dell server) and was replaced by another
> HP server of the same model (SE316M1).
> 
> Unfortunately I have no chance of running Xen on the new server. 
> I started with 4.9 and consecutively tried 4.8, 4.7 and 4.6 - always having
> Xen kernel crashing shortly after boot.
> 
> I then tried a self compiled Xen v4.9 with the same result.
> 
> Both server are equipped with 48 gigs of RAM and share the same config, 
> despite of:
> 
>   - srv1 (xen running) : HP Smart Array P800 RAID, 2 x Intel(R) Xeon(R) CPU 
> L5520 @2.27GHz Quad Core
>   - srv2 (xen craching): HP Smart Array P410 RAID, 2 x Intel(R) Xeon(R) CPU 
> L5640 @2.27GHz Hexa Core
> 
> Also tried every combination of noapic, nolapic, acpi=off etc...
> 
> I then decided to install Xen v4.4 on the new server first in order to 
> migrate my VMs becuase
> the old server needs some hardware maintainance. But Xen v4.4 did crash as 
> well!
> 
> Is this related to the CPU?

It has nothing to do with the CPU model.

What I would do for unknown hardware that's crashing, in no particular order:

Review the kernel logs when booted without Xen for warnings
Check the BIOS and IPMI logs
Check for BIOS or device firmware updates
Review BIOS settings related to ACPI or PCI
Run diagnostic utilities for the the various PCI devices if applicable
Run a memory test in multi-core mode
Remove or replace individual components to see if a particular component is 
causing problems

--Sarah

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