MCA errors
CyberLeo Kitsana
cyberleo at cyberleo.net
Mon Sep 8 21:43:55 UTC 2014
On 09/08/2014 01:56 PM, Emmanuelle Delouvée wrote:
> Please, examine the `MCA' error messages
> in the attached files:
> MCA-errors_dmesg.txt
> MCA-errors_messages.txt
>
> Q: - do they indicate a hardware problem?
> (RAM? CPU? other?)
> - consequence(s) for the OS?
> - how to fix?
It appears that you're running a Haswell CPU. Are you running anything
that may use VT-x (e.g. VirtualBox, bhyve) on this machine?
>From my kernel log:
----8<----
CPU: Intel(R) Xeon(R) CPU E3-1245 v3 @ 3.40GHz (3392.50-MHz K8-class
CPU) Origin = "GenuineIntel" Id = 0x306c3 Family = 0x6 Model = 0x3c
Stepping = 3
[...]
MCA: Bank 0, Status 0x90000040000f0005
MCA: Global Cap 0x0000000000000c09, Status 0x0000000000000000
MCA: Vendor "GenuineIntel", ID 0x306c3, APIC ID 6
MCA: CPU 6 COR (1) internal parity error
MCA: Bank 0, Status 0x90000040000f0005
MCA: Global Cap 0x0000000000000c09, Status 0x0000000000000000
MCA: Vendor "GenuineIntel", ID 0x306c3, APIC ID 6
MCA: CPU 6 COR (1) internal parity error
----8<----
This only happens when I'm running a VM in VirtualBox; regardless, the
machine is rock solid. My research leads me to believe it's a bug in
Haswell's VT-x implementation.
--
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-CyberLeo
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