Is there a standard for inclusive/exclusive ends of time intervals?

I'm wondering if there is a standard or "normal" means of interpreting time interval data end points with respect to inclusiveness/exclusiveness of the value defining the end point. Note however...

"Local" RDMA for development

I'm trying to build and run the RDMA examples here. But because I'm just exploring, I don't have any hardware capable of managing RDMA. I get errors like this when I try to run the example...

enable to program FPGA

I'm trying to program the FPGA and boot over an SD card in xc7z020-clg400-1 zynq chip inside parallella, I can't figure out where is the problem, I have did vivado design , generate bitstream,...

How to divide a BCD by 2 on an 8085 processor?

On an 8085 processor, an efficient algorithm for dividing a BCD by 2 comes in handy when converting a BCD to binary representation. You might think of recursive subtraction or multiplying by 0.5,...

Update statement SQL with CTE

I have a common table expression that I am using trying to use as an update statement. The only reason for the CTE is so I can use a where clause to filter by CredCount. I would like to use...

Doing OCR to identify text written on trucks/cars or other vehicles

I am new to the world of Computer Vision. I am trying to use Tesseract to detect numbers written on the side of trucks. So for this example, I would like to see CMA CGM as the output. I fed this...

Android Emulator not working on MAC

I've been trying to use the Android Emulator after downloading Android Studio. I've used an old Samsung S4 before, but need something compatible to Marshmallow for certain features. The problems I...

OOM Killer is triggered despite free memory

I am having a problem where the OOM killer is being triggered some times. I have researched in the internet and have found many related threads. But a few things still puzzle me. I hope some...

yocto kernel ti network error

i'm getting a network interface error when building for the 4.4 ti staging kernel. All layers are in the morty branch. The image is a core-image-minimal. Configuring network interfaces... ifup:...

unable to install face_recognition library for python

I'm trying to install dbLib Library for executing python face_recognition as mentioned here https://github.com/ageitgey/face_recognition/issues/175#issuecomment-355899230 as I execute the command...

Angular 4/5 load video/mp4 content using GET-request

I'm trying to load a mp4 video file from a secure API using a get request. In the API documentation we have: Request (GET): /cma/contentmanager/getfragment?fragmentid=x Header: Key –...

Unable to access ec2 ebs backed instance

For some unknown reason, an instance that was accessible via ssh on port 22 is no longer allowing access. After checking security groups and NACLs, correct routing tables associated with Gateways...

VB.net WPF :: Touchscreen does not consistently trigger Click() or other Mouse events

I'm looking into an issue where the touchscreen controls behaved oddly on a self-made numberpad. There are two variants of this numberpad, one is a password box, the other is for normal (visible)...

How to allocate large contiguous, memory regions in Linux

Yes, I will ultimately be using this for DMA but lets leave coherency aside for the moment. I have 64 bit BAR registers, therefore, AFAIK, all of RAM (e.g. higher than 4G) is available for DMA. I...

Android Virtual Device closes immediately after opening

My current problem is as soon as I try running ANY Android Virtual Device, it closes shortly after it starts. It never gets to a start screen, just black then closes. I've tried switching from...

Kafka transaction: Receiving CONCURRENT_TRANSACTIONS on AddPartitionsToTxnRequest

I am trying to publish in a transaction a message on 16 Kafka partitions on 7 brokers. The flow is like this: open transaction write a message to 16 partitions commit transaction sleep 25...

Enable wifi wlan adapter Ubuntu 20.04 LTS on Raspberry Pi 3 Model B

I have a Raspberry 3 Model B which has a BCM43438 wireless LAN and Bluetooth Low Energy (BLE) on board and recently installed Ubuntu 20.04 LTS. Thanks in advance for looking and let me know if...

PSK Modulation in GNU Radio in USRP N310

Currently I am working with the Ettus Research's N310 on the implementation of different PSK modulation schemes. I am interested on measuring the Bit Error Rate -BER- for each scheme when I...

Petalinux hangs during boot

I am trying to boot linux on a zedboard and monitor all memory accesses through Programmable Logic. I am first trying to boot linux with a start address  0x40000000. I am following this...

AWC EC2 Amazon Linux 2 Instances failed to boot after applying os updates

Yesterday we lost contact with 10 identically configured servers, after some investigation the conclusion was that a reboot after security updates had failed. We have so far not been able to get...

Embedded Buildroot and Yocto Linux crash 50% of the time

I am getting the below error 50% of the time during startup on an STM32 based processor (OSD32MP15x). I've tried over 40 versions configs and setups none work and I am under high pressure to...

android 11 open source project for emulator problem before custom rom

I try to build android open source project, I am at the beginning of it. Initially, I have successfully built android-11.0.0_r17 source code. I have obtained the out files (system.img, ramdisk.img...

Android Emulator Segmentation fault (core dumped) On Fedora 33

Using the Android 11.0 (R) SDK platform (revision 3), when I run an emulator image (Google Play Intel x86 Atom or Atom_64 System Image, revision 9), the emulator crashes. Doing the same from the...

andorid emulator displays black screen after build aosp

I met a problem when I launched the android emulator after build aosp successfully, emulator showed a black screen. Have you met this problem before? this is my environment CPU: AMD Ryzen 7...

Finding out what's taking up the CMA (Contiguous Memory Allocation) in Linux

Something is definitely taking up the CMA buffers, but I can't figure out what. # cat /proc/meminfo | grep -i cma CmaTotal: 262144 kB CmaFree: 1272 kB The system messages show...

python-vlc + wxpython freezes on Raspberry pi 4b

I have Raspberry pi 4b and I am trying to run python-vlc and wxpython to play video. import vlc import time import threading import wx class MyFrame(wx.Frame): def __init__(self): ...

Stop SE Linux from Enforcing on Android AOSP

I need to stop SE Linux from enforcing, from the earliest possible time in the Android boot sequence. I had read that a kernel parameter of "selinux=0" would stop this. It doesn't: smarc_mx8mq:/...

How do I run XEN on arm64 and Qemu 6.0.0 with Linux 4.20.11 as Dom0

thank you for reading and appreciated for reply! I followed this doc and successfully ran xen 4.12.0 on qemu 3.1.0 with Linux 4.20.11 as Dom0. Then I tried to use higher version of qemu(qemu 5.1.0...

How u-boot boots without console parameter in bootargs and still get kernel logs and all to be printed

I am currently using uboot to boot linux kernel. I have not mentioned ttyS0 or anything in the console parameter. I get to see the output only when there is not console parameter while if I...

Booting Linux on QEMU/RISC-V64/Busybox leads to error finding `/init` post boot

I'm trying to boot Linux on QEMU for RISC-V. I have set up my own toolchain described below: riscv-gnu-toolchain from [email protected]:riscv/riscv-gnu-toolchain.git qemu v5.2.0 from...