I'm having problems with ASRock J3455-ITX running Ubuntu 16.10.
First noticeable issue is related to random freezes in the system. They are definitely easier to reproduce while e.g. opening multiple tabs in Chrome, but they also can be sometimes encountered while simply having Terminal running
apt update (while in Unity). Freezes can make whole system unresponsive (in most cases keyboard and mouse still works, but sometimes even they stop to respond).
While investigating this further, I noticed once in
mce: [Hardware Error]: Machine check events logged
mcelog and can see now the following in
mcelog: failed to prefill DIMM database from DMI data mcelog: Family 6 Model 92 CPU: only decoding architectural errors Hardware event. This is not a software error. MCE 0 CPU 0 BANK 4 ADDR fef13b80 TIME 1484930342 Fri Jan 20 17:39:02 2017 MCG status: MCi status: Uncorrected error MCi_ADDR register valid Processor context corrupt MCA: Internal unclassified error: 408 Running trigger `unknown-error-trigger' STATUS a600000000020408 MCGSTATUS 0 MCGCAP c07 APICID 0 SOCKETID 0 CPUID Vendor Intel Family 6 Model 92
The interesting thing is that errors like this one are happening to me on boot only (but it repeats constantly on every boot) - but there are no signs of them while system is already running (even when I'm experiencing mentioned random freezes).
Does anyone of you how idea what's wrong? Is that error from
mcelog a clear indication that I have some kind of a hardware problem? Or can it be a error caused by a mixture of kernel, drivers, firmware, microcode, whatever else?