FUNCTION::CALLERS(3stap) Context Functions FUNCTION::CALLERS(3stap)

# [NAME](#NAME)

function::callers - Return first n elements of kernel stack backtrace

# [SYNOPSIS](#SYNOPSIS)

```


    callers:string(n:long)
```

# [ARGUMENTS](#ARGUMENTS)

*n*

number of levels to descend in the stack (not counting the top level). If n is -1, print the entire stack.

# [DESCRIPTION](#DESCRIPTION)

This function returns a string of the first n hex addresses from the backtrace of the kernel stack. Output may be truncated as per maximum string length (MAXSTRINGLEN).

# [SEE ALSO0](#SEE_ALSO0)

[*tapset::context-caller*(3stap)](/man/enterprise-packages/systemtap/tapset::context-caller.3stap)

September 2026 SystemTap Tapset Reference Ver

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Document: function::callers(3stap) from systemtap 5.6-r1 (Chainguard OS)
Source: https://sourceware.org/git/systemtap.git