mcelog missing cpu support

[Jeffrey Walton]

It appears Core i5-5300U (5th generation) Intel processor support is missing from Ubuntu 14 LTS. Also see the FAQ item for the error message "only decoding architectural errors" at http://www.mcelog.org/faq.html#17.

I'm guessing 6th gens are missing support. I'm also guessing the latest AMDs lack support.

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$ dmesg | egrep -i '(error|failed)'
...
[35679.953137] mce: [Hardware Error]: Machine check events logged
[35980.749723] mce: [Hardware Error]: Machine check events logged
[36280.594838] mce: [Hardware Error]: Machine check events logged
[36580.439940] mce: [Hardware Error]: Machine check events logged
[37029.202190] mce: [Hardware Error]: Machine check events logged
[37179.118743] mce: [Hardware Error]: Machine check events logged
[37629.831878] mce: [Hardware Error]: Machine check events logged
[37779.748453] mce: [Hardware Error]: Machine check events logged
[38229.510127] mce: [Hardware Error]: Machine check events logged

$ sudo mcelog
mcelog: Family 6 Model 3d CPU: only decoding architectural errors

$ cat /proc/cpuinfo | grep -i name
model name : Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz
model name : Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz
model name : Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz
model name : Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz

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$ uname -a
Linux qotom 3.19.0-64-generic #72~14.04.1-Ubuntu SMP Fri Jun 24 17:59:48 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.4 LTS
Release: 14.04
Codename: trusty

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$ dpkg -s mcelog
Package: mcelog
Status: install ok installed
Priority: optional
Section: admin
Installed-Size: 175
Maintainer: Ubuntu Developers <email address hidden>
Architecture: amd64
Version: 100-1fakesync1
Depends: libc6 (>= 2.11), debconf (>= 0.5) | debconf-2.0, udev | makedev (>= 2.3.1-81)
Conffiles:
 /etc/default/mcelog 160f21a4a34aa296b7557d2ab239a0f5
 /etc/mcelog/page-error-trigger 1e8fa151c9dbee6e4b1d900ecfe9d393
 /etc/mcelog/socket-memory-error-trigger 3be15d6f0129678e692dc676c27d7ca7
 /etc/mcelog/cache-error-trigger d49555a9e04429d536ac092c68e30aa5
 /etc/mcelog/mcelog.conf 00f417a676eb8b8180e2c48504060e69
 /etc/mcelog/dimm-error-trigger 3487c759925982269aee1607dd53fd99
 /etc/init.d/mcelog 5572490ee729d09d0e30571f8af7811b
Description: x86 Machine Check Exceptions collector and decoder
 The Linux kernel for x86 CPUs no longer decodes and logs recoverable
 Machine Check Exception (MCE) events to the kernel log on its own.
 .
 Instead, the MCE data is kept in a buffer which can be read from userspace
 via the /dev/mcelog device node.
 .
 You need this tool to collect and decode those events; it will log the decoded
 MCE events to syslog.
Homepage: http://mcelog.org/
Original-Maintainer: Andrey Rahmatullin <email address hidden>