1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Linux Gets Extended Hardware Error Log Driver

Hardware

Published on 11 October 2013 11:34 AM EDT
Written by Michael Larabel in Hardware
Comment On This Article

A set of eight patches were published today for the Linux kernel that implement an extended hardware error log driver that provides enhanced Intel MCA event logging. With this driver, certain errors are more useful for users like being able to report the particular memory RAM DIMM where a memory corrected error happened and other detailed information not currently exposed via the Linux kernel.

The patch series by Chen Gong explains, "Certain usages such as Predictive Failure Analysis (PFA) require more information about the error than what can be described in processor machine check banks. Most server processors log additional information about the error in processor uncore registers. Since the addresses and layout of these registers vary widely from one processor to another, system software cannot readily make use of them. To complicate matters further, some of the additionalerror information cannot be constructed without detailed knowledge about platform topology. This enhanced MCA logging driver allows firmware to provide additional error information to MCE/CMCI handler and thus addresses this gap."

The mailing list message also provides sample dmesg and trace outputs of the newly-exposed data when an error takes place.

Intel Enhanced MCA Logging is explained as "improved Firmware First signalling and enhanced error logs that complement machine check bank content." The Enhanced MCA Logging unfortunately isn't widely-supported yet. Intel says that this technology will be supported by "future Xeon processors" in the white-paper that was published this June.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. Rosewill RS-MI-01: An Ultra Low-Cost Mini-ITX Chassis
  2. D-Link DCS-2330L HD Wireless Network Camera
  3. Gigabyte AM1M-S2H
  4. AMD's New Athlon/Semprons Give Old Phenom CPUs A Big Run For The Money
Latest Linux Articles
  1. Red Hat Enterprise Linux 7.0 RC Benchmarks
  2. AMD Catalyst 14.4 Brings Few Linux Performance Improvements
  3. The Performance Of Fedora 20 Updated
  4. Clang Fights GCC On AMD's Athlon AM1 APU With Jaguar Cores
Latest Linux News
  1. NGINX 1.6 Brings SPDY 3.1 & Other New Features
  2. Linux Foundation Announces A Core Infrastructure Initiative
  3. More Steam Linux Tests/Benchmarks Might Be Coming
  4. NVIDIA's Amazing Single-Board ARM Computer Might Be Delayed
  5. Fedora 21 To Get A Playground, New Features
  6. PC-BSD Is Developing Its Own Desktop Environment
  7. Valve Is Bringing VOGL To Windows & Working On Regression Tests
  8. Canonical Is Taking Over Linux 3.13 Kernel Maintenance
  9. Google Web Designer Is Now Natively Available On Linux
  10. Ubuntu 14.10 Is Codenamed The Utopic Unicorn
  11. Audacious 3.5 Lightweight Audio Player Released
  12. Steam Updated For Ubuntu 14.04 LTS, SteamOS
Latest Forum Discussions
  1. What Else Would You Like To See On Phoronix This Spring?
  2. HTPC-upgrade advice: AMD Richland A8-7600 or Kaveri A10-6700T ???
  3. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  4. The GNOME Foundation Is Running Short On Money
  5. The Most Amazing OpenGL Tech Demo In 64kb
  6. Announcing radeontop, a tool for viewing the GPU usage
  7. New card. Open source drivers only.
  8. Script for Fan Speed Control