---
name: "function::backtrace"
section: "3stap"
platform: "linux"
package: "systemtap-doc"
version: "5.1-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/function::backtrace"
---

# function::backtrace(3stap)

Hex backtrace of current kernel stack

## NAME

function::backtrace - Hex backtrace of current kernel stack

## SYNOPSIS

```
    backtrace:string()
```

## ARGUMENTS

None

## DESCRIPTION

This function returns a string of hex addresses that are a backtrace of the kernel stack. Output may be truncated as per maximum string length (MAXSTRINGLEN). See **ubacktrace** for user-space backtrace.

## SEE ALSO0

[*tapset::context-unwind*(3stap)](/tapset::context-unwind/3stap.md)