Operating Systems Category - Page 371 of 1032 - CNX Software

July 17, 2019July 17, 2019 by Jean-Luc Aufranc (CNXSoft) - 39 Comments

Checking Out Machine Check Exception (MCE) Errors in 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:

[180422.405294] mce: [Hardware Error]: Machine check events logged
[180425.656449] mce: [Hardware Error]: Machine check events logged
[180483.582825] mce_notify_irq: 17 callbacks suppressed
[180483.582827] mce: [Hardware Error]: Machine check events logged
[180484.991484] mce: [Hardware Error]: Machine check events logged
[180594.700684] mce_notify_irq: 13 callbacks suppressed
[180594.700686] mce: [Hardware Error]: Machine check events logged
[180858.202115] mce: [Hardware Error]: Machine check events logged
[181178.047031] mce: [Hardware Error]: Machine check events logged

[180422.405294] mce: [Hardware Error]: Machine check events logged

[180425.656449] mce: [Hardware Error]: Machine check events logged

[180483.582825] mce_notify_irq: 17 callbacks suppressed

[180483.582827] mce: [Hardware Error]: Machine check events logged

[180484.991484] mce: [Hardware Error]: Machine check events logged

[180594.700684] mce_notify_irq: 13 callbacks suppressed

[180594.700686] mce: [Hardware Error]: Machine check events logged

[180858.202115] mce: [Hardware Error]: Machine check events logged

[181178.047031] mce: [Hardware Error]: Machine check events logged

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:

sudo apt install mcelog

1	sudo apt install mcelog

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 Instead, we’re being told the mcelog package functionality has been replaced by rasdaemon.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 […]

July 16, 2019 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Ameba Z2 IoT Board Features Realtek RTL8720CM Armv8-M KM4 Secure Wireless MCU

In 2016 we discovered Realtek Ameba wireless microcontrollers combining an Arm Cortex-M3 core with WiFi connectivity, and that could potentially become an ESP8266 competitor with modules selling for as low as $2. But the solution never really took off, because it was about the same price as ESP8266, and the latter already had a solid software ecosystem and community. But RealTek has now introduced a new Ameba Z2 IoT development board powered by RTL8720CM microcontroller featuring an Armv8-M KM4 core clocked at 100 MHz. What’s an Arm KM4 core you may ask? Seeed Studio informed me Arm and RealTek worked together on the KM4 core, so it looks like a custom Armv8-M microcontroller. Ameba Z2 IoT Development Board Ameba Z2 (ZII) specifications: Wireless MCU – Realtek RTL8720CM single core Armv8-M KM4 core @ 100MHz with 4.2MB internal RAM, WiFi and Bluetooth radios Storage – 2MB external flash on module Connectivity […]

July 16, 2019July 16, 2019 by Stephen Vicinanza - No Comments

PicoLog 6 Beta supports Raspberry Pi 4, 3B and 3B+

One of the most popular computer platforms, Raspberry Pi has not been supported for Pico’s advanced datalogging software, up until now. The PicoLog 6 datalogging software is now compatible with Raspbian Stretch or later OS. The software has been designed for quick access to simple or complex acquisitions, and enabled to record, analyze or view data of almost any type. TC-08 Thermocouple Datalogger with Raspberry Pi 3 board Real Power It is essentially the same software that runs on Windows, macOS, and Linux, with a few differences to take advantage of the capability of the lower-powered Arm processors. Producing a powerful datalogger for the Raspberry Pi SBC platform. The PicoLog 6 is optimized for Raspbian Stretch and runs the Raspberry Pi 4, 3B and 3B+ SBC’s. The core of the utility is an easy to use visual interface that allows for an almost out-of-box use to the program. Features Making […]

July 15, 2019July 15, 2019 by Jean-Luc Aufranc (CNXSoft) - No Comments

Solectrix SX Mobile Device Kit Runs Linux or Android on NXP i.MX8M Mini Processor

In the last two years or so, we’ve seen the development of Linux phones that are expected to launch in the next few months with products such as PinePhone, Purism Librem 5, or even Necunos NC_1. Solectrix SX Mobile Device Kit also targets Arm-based mobile devices, but it is somewhat different, as the i.MX8M Mini development kit aims to help with the design of Android or Linux mobile devices with software, hardware and housing available, but more geared towards specific business use cases, as it comes with optional Gigabit Ethernet and USB-to-UART ports, and no cellular connectivity. Solectrix SX Mobile Device Kit (MDK) specifications: SoC – NXP i.MX8M Mini single to quad-core Cortex-A53 processor clocked at up to 2.0GHz, Arm Cortex-M4F @ 400MHz, and 2D / 3D GPU (OpenGL ES 2.0) System Memory – 2GB LPDDR4 Storage – 8GB eMMC Flash, microSD card slot Display – 4-lane MIPI DSI; capacitive […]

July 15, 2019July 16, 2019 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

RK3229 Powered Q96 Smart Android 9.0 TV Box Sells for $19.99 (Promo)

A few years ago, it was pretty easy to buy ultra-cheap under $20 TV boxes, but with the RAM and flash memory prices increase, companies were unable to provide such good deals. Prices have now come down to earth, so deals may pop-up from time to time, and one of those is for Rockchip RK3229 based Q96 Smart TV box running Android 9.0 with 1GB RAM and 8GB flash that currently goes for $19.99 on GearBest with coupon GBCNQ9601. [Update: GBCNQ962 coupon can be used for the 2GB version bringing down the price to $25.99] Q96 Smart specifications: SoC – Rockchip RK3229 quad core Arm Cortex-A7 processor up to 1.5GHz with Arm Mali-400 MP2 GPU System Memory – 1 or 2GB DDR3 Storage – 8GB or 16GB flash, microSD card slot Video & Audio Output – HDMI 2.0 up to 4K @ 60 Hz + AV port with composite and […]

July 15, 2019 by Stephen Vicinanza - 1 Comment

NXP i.MX 7ULP Enters Mass-Production, EVK and Systems-on-Module Announced

Last year, we wrote about F&S Elektronik Systeme PicoCORE MX7 system-on-module (SoM) powered by NXP i.MX 7ULP processor manufactured with a 28nm FD-SOI process, and that was announced a year earlier. The official launch of the module was planned for Q3 2018, but there have been some delays as LinuxGizmos reports NXP has only started mass production of their i.MX7 ULP this June. With the official launch of i.MX 7ULP, the company also introduced the official i.MX 7ULP Evaluation Board (MCIMX7ULP-EVK) as showcased on Element14’s community and several other companies announced i.MX 7ULP systems-on-modules. Benefits of NXP i.MX 7ULP Processor The i.MX7 ULP family of processors is an extremely power-efficient series, that is utilizing lower power for more functions. The SoC is being touted as the most power-efficient processor that can be obtained that also houses a 3D GPU. Although like the i.MX7, the i.MX 7ULP combines both Cortex-A7 and […]

July 14, 2019August 4, 2019 by Jean-Luc Aufranc (CNXSoft) - 19 Comments

ODROID-H2 Review – Part 2: Ubuntu 19.04

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 & […]

July 13, 2019 by Jean-Luc Aufranc (CNXSoft) - No Comments

Arm Techcon 2019 Schedule – Machine Learning, Security, Containers, and More

Arm TechCon will take place on October 8-10, 2019 at San Jose Convention Center to showcase new solutions from Arm and third-parties, and the company has now published the agenda/schedule for the event. There are many sessions and even if you’re not going to happen it’s always useful to checkout what will be discussed to learn more about what’s going on currently and what will be the focus in the near future for Arm development. Several sessions normally occur at the same time, so as usual I’ll make my own virtual schedule with the ones I find most relevant. Tuesday, October 8 09:00 – 09:50 – Open Source ML is rapidly advancing. How can you benefit? by Markus Levy, Director of AI and Machine Learning Technologies, NXP Over the last two years and still continuing, machine learning applications have benefited tremendously from the growing number of open source frameworks, tools, […]