The Geek Diary

The “go test” command in Go is used to run tests on Go packages. It is a powerful tool for testing Go code and ensuring the correctness of your programs. However, it is important to note that the test files must have names ending with “_test.go” for the tests to be recognized and executed. When […]

The “go mod” command in Go is used for module maintenance and managing dependencies in your project. It provides several commands to initialize, download, add, remove, verify, and vendor modules. To initialize a new module in the current directory, you can use the “go mod init” command followed by the desired module name. For example, […]

The “go list” command in Go is used to obtain information about packages or modules in your project. It provides various options to customize the output and retrieve specific details. To list packages in your project, you can use the command “go list ./…”. This will display all packages in the current directory and its […]

The “go install” command in Go is used to compile and install packages, along with their dependencies, that are specified by the import paths. When you use “go install”, Go will first check if the package is already present in your local build cache. If it is not, Go will first fetch the package and […]

The go get command in Go is a versatile tool used to manage dependencies within Go projects. With go get, developers can seamlessly add new dependency packages to their current module or download packages in the traditional GOPATH mode. This command is essential for fetching external packages and integrating them into your codebase, regardless of […]

kexec_load is a system call in Linux that loads a new kernel image into memory for execution, effectively allowing a Linux system to perform a fast reboot without going through the full hardware initialization process. This system call is particularly useful in situations where a system crash occurs or when administrators need to load a […]

Kernel crashes are inevitable in any computing environment, and having a reliable mechanism to capture diagnostic information is crucial for effective troubleshooting and system recovery. In Red Hat Enterprise Linux (RHEL) 9, the Kdump feature provides a powerful solution for capturing kernel crash data. While Kdump is installed by default in RHEL 9, configuring the […]

Kernel crashes are inevitable occurrences in any operating system environment. When these crashes happen, it’s imperative to have mechanisms in place to collect crucial diagnostic information for analysis and troubleshooting. In Red Hat Enterprise Linux (RHEL) 9, the Kdump feature serves as a powerful tool for capturing kernel crash data, aiding in the resolution of […]

The Kdump feature in RHEL provides a crash dumping mechanism that captures diagnostic information when the kernel crashes. Kdump works by using the kexec system call to boot into a capture kernel without rebooting the system. This capture kernel reserves part of system memory and saves the contents of the crashed kernel’s memory as a […]

The Automatic Bug Reporting Tool (ABRT) package is a utility developed by Red Hat, designed to automatically detect and report application crashes on Linux-based systems. ABRT plays a crucial role in identifying software issues, collecting relevant data about crashes, and facilitating the submission of bug reports to aid in debugging and resolving problems. This tool […]