Linux Kernel

Linux Kernel

How to extract files from jffs2 root filesystem image ?

[ Note: following commands has been tried on ubuntu 16.04, but should work on other Linux distros … Read more

Creating jffs2 filesystem image for embedded target platform

What is JFFS2 ?=> JFFS2 is a log-structured file system designed for use on flash devices in … Read more

How to Join Linux kernel mailing lists (LKML) ?

LKML https://lkml.org/ is an unofficial Linux Kernel Mailing List archive. This mailing list is a rather high-volume … Read more

How to Compile and Install device-tree-compiler (DTC) On Ubuntu ?

If you want to install device-tree-compiler i.e. dtc command on Ubuntu, use following command, This command will … Read more

How to compile DTS to DTB from Linux kernel and manually ?

Lets say, you have been trying to compile Linux kernel source code for Raspberry Pi following steps … Read more

What is Linux Out-Of-Memory OOM Killer ?

Major distribution kernels set the default value of /proc/sys/vm/overcommit_memory to zero, which means that processes can request … Read more

How to avoid a process from being killed in case of Out of Memory ?

In our previous post, we understood “What is Out of Memory Killer ?” In this post, we … Read more

insmod: ERROR: could not insert module hello.ko

We tried to write a simple class driver framework which will create a directory in /sys/class, we … Read more

How to measure Network Throughput using iperf ?

iPerf3 is a tool for active measurements of the maximum achievable bandwidth on IP networks. It supports … Read more