function::task_backtrace - Linux

Overview

function::task_backtrace is a command used to display the backtrace for a task (function) in the Linux kernel. It helps in debugging and understanding the flow of execution within the kernel.

Syntax

function::task_backtrace [<task_pid>]

• <task_pid>: (Optional) The process ID of the task to display the backtrace for. If omitted, the current task’s backtrace will be displayed.

Options/Flags

This command does not support any options or flags.

Examples

Display the backtrace for the current task:

function::task_backtrace

Display the backtrace for the task with PID 1:

function::task_backtrace 1

Common Issues

If the provided task PID does not exist, the command will return an error message.

Integration

function::task_backtrace can be integrated with other Linux commands such as pstree to visualize the process tree and identify the task to investigate.

Related Commands

• pstree: Display the process tree hierarchy.
• gdb: Debugger for kernel and user-space programs.
• perf: Performance analysis tool.