Checking Out Machine Check Exception (MCE) Errors in Linux

Machine Check Exception Error Linux

I recently reviewed ODROID-H2 with Ubuntu 19.04, and noticed some errors messages in the kernel log of the Intel Celeron J4105 single board computer while running SBC-Bench benchmark: I did not know what do make of those errors, but I was told I would get more details with mcelog which can be installed as follows: There’s just one little problem: it’s not in Ubuntu 19.04 repository, and a bug report mentions mcelog is not deprecated, and remove from Ubuntu 18.04 Bionic onwards. Instead, we’re being told the mcelog package functionality has been replaced by rasdaemon. But before looking into the utilities, let’s find out what Machine Check Exception (MCE) is all about from ArchLinux Wiki: A machine check exception (MCE) is an error generated by the CPU when the CPU detects that a hardware error or failure has occurred. Machine check exceptions (MCEs) can occur for a variety of reasons ranging from undesired or out-of-spec voltages from the power supply, …

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ODROID-H2 Review – Part 2: Ubuntu 19.04

ODROID-H2 Review

After many months of delays due to Intel not mass-producing Gemini Lake processors, Hardkernel started selling ODROID-H2 again, more exactly ODROID-H2 Rev. B, and the end of last month, and the company sent me a full kit for evaluation. You can check out ODROID-H Rev. B with Type 3 case and the assembly instructions in the first part of the review. I’ve now had time to play with the board using the pre-installed Ubuntu 19.04 operating systems so I’ll report my experience in this second part. Note that ODROID-H2 does not rely on a custom version of Ubuntu, and instead you can download and flash Ubuntu 18.04 or 19.04 ISO directly from Ubuntu website. First Boot and System Information I had already connected two SATA drives inside the enclosure, one SSD and one HDD, but before booting the device I connected an HDMI cable, one Ethernet cable, USB keyboard & mouse, as well as the power supply. The board booted …

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Testing Ubuntu 18.04 on XIDU PhilPad 2-in-1 Hybrid with Touchscreen

XIDU PhilPad Ubuntu 18.04

So I’ve recently completed the review of XIDU Philpad 2-in-1 hybrid with Windows 10. The laptop features a 13.3″ touchscreen and support stylus, and I was intrigued whether those would work in Ubuntu 18.04. So I flash the Ubuntu 18.04.2 Desktop ISO to a flash drive and installed Ubuntu to another USB flash drive to give it a try with persistent storage. Note that while it’s OK for testing, running Ubuntu 18.04 from a USB flash drive is very slow, so it’s not recommended. The good news is that you can enter the BIOS by pressing either Esc or Del at boot time, an option is available to select Linux in the BIOS. I could then select Partition 1 in my bootable flash drive, and install Ubuntu 18.04 on the other drive with some patience, and everything works smoothly, albeit slowly due to using a cheap USB flash drive during the installation. I tested all the main hardware features: Display …

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Chatreey AC1-Z Low Power Fanless Mini PC Goes for $153 and Up

The Chatreey AC1-Z mini PC is running either the Intel Celeron Apollo Lake J3455 and the Intel Celeron Gemini Lake J4105 and boasts a full complement of features and SoC peripherals. It closely resembles the series of mini computers similar to the Zotac Nano mini PC. The Chatreey AC1-Z is a silent, fanless mini-PC that offers 4GB RAM, 4K resolution across two display inputs, and housing either the Apollo Lake or the Gemini Lake processors.  The Gemini Lake version has a choice of up to 64GB eMMC storage and offers a drive bay for an optional 2.5 SSD or SATA HDD. I/O 2x USB 3.0 Type A, 2x USB 2.0 Type A 1x LAN 1x Micro SD 1x Audio 3.5 mm 2x HDMI Features Power Button Kensington Lock Power Connector (12V 2.5A) Dual-band WIFI /WLAN 802.11ac+BT The AC1–Z system is inspired by other mini-PC models and carries a lot of the features and options but is generally less expensive for …

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XIDU PhilPad 2-in-1 Hybrid 2K Laptop Review

XIDU PhilPad Review

I had never heard about XIDU laptops and tablets, and it’s apparently the brand name of “Shenzhen Baohuazhong Co Limited” that was founded in 2014 and specializes in the design, development, manufacturing, distributions, and support for computer systems. I came to know about the company as they approached me to review one of their laptops, namely XIDU PhilPad XT133A model with an Intel Celeron N3350 dual-core Apollo Lake processor coupled with 6GB RAM and 64GB storage, and equipped with a 13.3″ touchscreen display with 2K (2560×1440) resolution. XIDU PhilPad Specifications SoC – Intel Celeron N3350 dual core Apollo Lake processor @ 1.10 GHz / 2.40 GHz (Turbo) with 12EU Intel HD graphics 500 GPU; 6W TDP System Memory – 6GB DDR3 Storage – 64GB eMMC flash, microSD card slot Display – 13.3″ touchscreen IPS display with 2560 x 1440 resolution Audio – 3.5mm headphone jack, built-in microphone and speaker Camera – 5MP rear camera, 2MP front-facing camera Connectivity Dual band …

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Google Fuchsia Operating System Gets its own Developer Website

Fuchsia Documentation

Google has been developing Fuchsia open source operating system based on Zircon kernel for several years. It’s still unclear what’s the end goal. Will it replace Android or/and Chrome OS, ditching the Linux kernel for Zircon in the process? We don’t know, and Google claims its an experimental endeavor. Only the future will tell. We’ve had access to the source code since 2016,  but Google has now launched a dedicated developer website for Fuchsia: fuchsia.dev This is year 2019, and Google being a Western company it should not be surprising the first part of the documentation is a Code of Conduct, but there’s also plenty of technical documentation with a glossary, getting started guide, building instructions, an overview of the OS, code samples, and instructions to contribute either by testing or submitting changes to Gerrit. Fuchsia is strictly a 64-bit operating system at this stage with support for Arm64 and x86-64 ISA only. If you want to test drive Fuchsia …

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GPD P2 Max 8.9″ Ultrabook Launched on Indiegogo for $530 and Up

GPD P2 Max

The previously unveiled GPD Pocket 2 Max has now launched on Indiegogo under the name GPD P2 Max. The mini laptop, which the company refers to as an Ultrabook, is powered by an Intel Core m3-8100Y Amber Lake processor coupled with up to 16GB RAM and 512GB SSD storage and features an 8.9″ high-resolution touchscreen display. Beside the Amber Lake processor, the company is also offering a lower cost model with an Intel Celeron 3965Y Kaby Lake-Y processor going for $530 in Indiegogo, against the $705 asked for the Intel Core m3-8100Y Ultrabook. GPD P2 Max Ultrabook specifications: SoC (one or the other) Intel Celeron 3965Y dual-core Kaby Lake processor @ 1.50 GHz with Intel HD graphics 615; 6W TDP Intel Core m3-8100Y dual-core/quad-thread Amber Lake processor @ 1.1 / 3.4 (Turbo) GHz with 24EU Intel UHD Graphics 615; 5W TDP, but configured with TDP-up @ 8W System Memory & Storage Celeron 3965Y model – 8GB LPDDR3 RAM, 256GB M.2 …

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ODROID-H2 Rev B Review – Part 1: Kit Unboxing and Assembly

ODROID-H2 Case Type 3 Assembled

ODROID-H2 was announced in October 2018 as the first x86 SBC from Hardkernel. The board features an Intel Celeron J4105 Gemini Lake processor, two SO-DIMM slots for memory, two SATA ports and M.2 NVMe slot for storage, two Gigabit Ethernet ports, a mix of USB 3.0 and 2.0 ports, as well as HDMI and DisplayPort video outputs. The board went for sale the following month for $111, and the first batch of 2,000 boards was sold within 24 hours. In normal cases, this should not be a big problem, and in a few weeks, the company should have been able to produce more boards to fulfill the demand. But Intel decided to prioritize higher-end processors, and Gemini Lake SoCs’ manufacturing was put on the back foot. That means Hardkernel had to wait over 6 months to get supply of the Celeron J4150 processors. In the meantime, the company slightly redesign the board, now called ODROID-H2 Rev B, and the good …

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