oomctl:tldr:f58c2

The "oomctl dump" command is used to trigger a process dump when an Out-of-Memory (OOM) situation occurs on a Linux system. OOM refers to a scenario where the system's memory gets depleted, and the operating system has to start terminating processes to free up memory.

When the "oomctl dump" command is executed, it requests the kernel to generate a process dump of the current state of all processes in the system. A process dump, also known as a core dump, is a file that contains a snapshot of the memory and state of a process at a specific point in time. It includes information such as process registers, stack trace, and the values of variables.

By executing "oomctl dump," the system is essentially collecting debug information for later analysis. This can be useful in troubleshooting the cause of the OOM issue or investigating the behavior of the processes leading up to the memory depletion. The generated process dump files can be examined using debugging tools like gdb (GNU Debugger) or other similar utilities to understand the state of the processes at the time of the OOM event.